Electric Switch Mechanisms Installation and Operating Manual Series A, B, C, D, E, F, L, M, N, O, Q, S, T, 2, and 3 with Aluminum, Carbon Steel, or Cast Iron Housings Read this Manual Before Installing Notice of Copyright and Limitations This manual provides information on Electric Switch Copyright © 2006 Magnetrol International. Mechanisms. It is important that all instructions are read All rights reserved. carefully and followed in sequence. Detailed instructions Magnetrol reserves the right to make changes to the are included in the Installation section of this manual. products described in this manual at any time without notice. Magnetrol makes no warranty with respect to the Conventions Used in this Manual accuracy of the information in this manual. Certain conventions are used in this manual to convey specific types of information. General technical material, Warranty support data, and safety information are presented in All Magnetrol/STI mechanical level and flow controls are narrative form. The following styles are used for notes, warranted free of defects in materials or workmanship for cautions, and warnings. five full years from the date of original factory shipment. Notes If returned within the warranty period; and, upon factory Notes contain information that augments or clarifies inspection of the control, the cause of the claim is an operating step. Notes do not normally contain determined to be covered under the warranty; then, actions. They follow the procedural steps to which Magnetrol will repair or replace the control at no cost to they refer. the purchaser (or owner) other than transportation. Cautions Magnetrol/STI shall not be liable for misapplication, Cautions alert the technician to special conditions that labor claims, direct or consequential damage or expense could injure personnel, damage equipment, or reduce arising from the installation or use of equipment. There a component’s mechanical integrity. Cautions are also are no other warranties expressed or implied, except used to alert the technician to unsafe practices or the special written warranties covering some Magnetrol/STI need for special protective equipment or specific products. materials. In this manual, a caution indicates a potentially hazardous situation which, if not avoided, Quality Assurance may result in minor or moderate injury. The quality assurance system in place at Magnetrol/STI guarantees the highest level of quality throughout the Warnings company. Magnetrol/STI is committed to providing full Warnings identify potentially dangerous situations or customer satisfaction both in quality products and serious hazards. In this manual, a warning indicates an quality service. imminently hazardous situation which, if not avoided, Magnetrol’s quality assurance could result in serious injury or death. system is registered to ISO 9001 affirming its commitment to known WARNING! Explosion hazard. Do not connect or international quality standards disconnect equipment unless power has been switched off providing the strongest assurance of or the area is known to be non-hazardous. product/service quality available. Low Voltage Directive For use in Installation Category II, Pollution Degree 2. If equipment is used in a manner not specified by manu- facturer, protection provided by equipment may be impaired. Electric Switch Mechanisms Table of Contents 1.0 Reference Information.....................................................1 4.0 Switch Specifications .....................................................12 1.1 Principle of Operation ..............................................1 5.0 Replacement Switch Mechanisms.................................13 1.2 Operating Cycle........................................................1 5.0.1 Switch selection............................................13 1.3 Description ...............................................................2 5.0.2 Magnet strength ...........................................13 1.3.1 Mercury switches A, E, N and T....................2 5.1 Yellow Dot Magnet Replacement Mechanisms........14 1.3.2 Mercury switches L, M, 2 and 3.....................2 5.1.1 Series A, B, C, D, E, L, N, O, Q, S and T...14 1.3.3 Dry contact switches B, C, D, O, Q and S ....3 5.1.2 Series 2, 3 and M .........................................15 1.3.4 Hermetically sealed switch..............................3 5.2 Red, Black and Blue Dot Magnet Replacement 2.0 Installation.......................................................................4 Mechanisms ............................................................15 2.1 Replacing Switch Mechanism....................................4 5.2.1 Series A, B, C and E.....................................15 2.2 Replacing Mercury Switches......................................4 5.2.2 Series 2, 3 and M Red..................................16 2.2.1 Series A, L, M, N and 3 .................................4 5.2.3 Series 2, 3 and M Red/Black/Blue................16 2.2.2 Series E, T and 2............................................5 6.0 Replacement Switch Housing Assemblies .....................17 2.3 Replacing Dry Contact Switches...............................6 6.0.1 Aluminum housings .....................................17 2.3.1 Series B, C, D, F, O, Q, and S .......................6 6.0.2 Cast iron housings........................................18 2.4 Vibration Service Adjustment ...................................7 6.0.3 Carbon steel housings...................................18 2.4.1 Series E, T and 2............................................7 6.1 Replacement Housing Kits......................................19 3.0 Wiring .............................................................................8 6.1.1 Referred by eighth, ninth and tenth digit.....19 3.1 SPDT Terminal Connections....................................8 6.1.2 Referred by description ................................19 3.1.1 Single float with one switch or 6.2 Replacement Gaskets and Hardware .......................19 single stage displacer.......................................8 7.0 Manual Reset Option....................................................20 3.1.2 Single float with two switches or 7.1 Parts Breakdown and Identification.........................20 dual stage displacer.........................................8 7.2 Field Installation Instructions..................................21 3.1.3 Single float with three switches or 8.0 Switch and Housing Model Codes................................22 three stage displacer........................................9 3.2 DPDT Terminal Connections.................................10 3.2.1 Single float with one switch or single stage displacer.....................................10 3.2.2 Single float with two switches or dual stage displacer.......................................10 3.2.3 Three stage displacer ....................................11 1.0 Reference Information 1.1 Principle of Operation Figures 1 & 2 illustrate the simple, reliable operating prin- ciple of a float level switch. Switching action is obtained through the use of a magnetic sleeve (4) and a float (3), displacer or flow sensing element and a switching mecha- nism (2). These two basic component assemblies are sepa- rated by a non-magnetic, pressure tight enclosing tube (5). The switch (2) and magnet (1) are assembled to a mecha- nism with a swinging arm which operates on precision stainless steel pivots. 1.2 Operating Cycle As level of a liquid in a vessel rises (Figure 1), the float rides on the liquid surface moving the magnetic sleeve Pivot 2 upward in the enclosing tube and into the field of the switch mechanism magnet. As a result, the magnet is 5 Return drawn in tightly to the enclosing tube causing the switch Spring 4 1 to tilt, making or breaking the electrical circuit. As the 3 liquid level recedes (Figure 2), the float and magnetic sleeve moves downward until the switch magnet releases and is drawn outward, away from the enclosing tube by a tension spring. This in turn tilts the switch in an opposite Figure 1 Figure 2 direction, thus reversing switch action. Rising Level Falling Level Switch mechanisms may include a single switch or multi- ple switches, depending on operational requirements and switching action desired. Rather than tilting, dry contact switches are actuated by the movement of the swinging arm against the actuation arm of the switch. 42-683 Electric Switch Mechanisms 1 1.3 Description Magnetrol level controls are available with a range of dif- ferent switch mechanisms—each designed for specific serv- ice conditions. A brief description of the individual switch mechanisms and their applications are given below. 1.3.1 Mercury Switches A, E, N, and T Mercury switches offer the advantage of quick visual Left Hand Switch Right Hand Switch inspection of contact conditions and have a maximum liquid temperature rating of +550° F (+288° C). • Series A switches are heavy duty with high load carrying capability, see Figure 3. • Series E switches are specially designed to provide vibration resistance. • Series N switches are heavy duty with high load carrying capability, used only in model C10 and C15 units, see Figure 3 Figure 3. Series A, and N Mercury Switches • Series T switches are specially designed to provide vibration resistance, used only in model C10 and C15 units. 1.3.2 Mercury Switches L, M, 2, and 3 These high temperature switches offer the advantage of quick visual inspection of contact conditions. They feature nickel/copper bare wire and ceramic beaded insulation allowing use in applications with process temperatures up to +750° F (+399° C) or for the Model B40 only, up to +1000° F (+538° C). • Series L switches are heavy duty with high load carrying capability and are specially designed to provide vibration Figure 4 resistance. They are used only in model B40 units with Series L process temperatures up to +1000° F (+538° C), see Vibration Resistant Figure 4. Mercury Switch • Series M Switches are heavy duty with high load carrying capability, used only on units requiring manual reset, see Figure 5. • Series 2 switches are specially designed to provide greater vibration resistance. • Series 3 switches are heavy duty with high load carrying capability, see Figure 5. Figure 5 Series M and 3 High Temperature Mercury Switches 42-683 Electric Switch Mechanisms 2 1.3.3 Dry Contact Switches B, C, D, O, Q, and S Dry contact switches are specified in applications where mercury must be avoided. • Series B switches are general purpose with a maximum liquid temperature rating of +250° F (+121° C), see Figure 6. • Series C switches are general purpose with a maximum liquid temperature rating of +450° F (+232° C), see Figure 6 Figure 6. Series B, C, D, O and Q Dry Contact Switches • Series D switches are designed for DC current applica- tions with a maximum liquid temperature rating of +250° F (+121° C), see Figure 6. • Series O switches are general purpose with a maximum liquid temperature rating of +300° F (+149° C), used only in model C10 and C15 units, see Figure 6. • Series Q switches are general purpose with a maximum liquid temperature rating of +250° F (+121° C), used only in model C10 and C15 units, see Figure 6. • Series S switches are general purpose with a maximum liq- Figure 7 uid temperature rating of +550° F (+288° C), or designed Series S Snap Switch for DC current applications with a maximum liquid tem- perature of +250° F (+121° C), used only in model B40 units, see Figure 7. 1.3.4 Hermetically Sealed Switch Hermetically sealed switches are for use in special applica- tions where hermetically sealed contacts are required. • Series F switches are well suited for use in process temper- atures up to +750° F (+399° C), see Figure 8. NOTE: See bulletin 42-694 for series HS & H1 hermetically sealed Figure 8 switches Series F Hermetically Sealed Switch 42-683 Electric Switch Mechanisms 3 2.0 Installation 2.1 Replacing Switch Mechanism Caution: Before attempting to remove a switch mechanism, be cer- tain to pull disconnect switch or otherwise assure that electrical circuit through control is de-energized. 1. Disconnect wiring from supply side of terminal block on switch mechanism. Note and record lead wire terminal locations. 2. Loosen screw in split mounting clamp until mechanism slides freely on enclosing tube, refer to Figure 9. 3. Remove small round head screw securing lower switch mechanism to baffle plate, refer to Figure 10. Figure 9 4. Slide switch mechanism off of enclosing tube. If mechanism Mounting Screw is to be reused, ensure that it is placed on a clean surface, free of metallic particles that may be attracted to the switch magnet. 5. Loosen mounting screw so that switch frame will fit over e-tube. Install switch mechanism by sliding it over the enclosing tube. Slide mechanism down until the bottom of the frame and terminal block are resting on the baffle plate. The baffle plate should be resting on the hub of the housing base. 6. Install and tighten baffle plate screw so that the switch mechanism may not be separated from the baffle plate. Tighten the mechanism mounting screw so that the mech- anism is firmly clamped to the enclosing tube. Baffle Plate Screw 7. Swing magnet assembly in and out by hand, checking carefully for any signs of binding. Figure 10 8. Reattached supply-side wiring to the terminal block and Baffle Plate Screw check switch function by varying liquid level in the vessel. 2.2 Replacing Mercury Switches 2.2.1 Series A, L, M, N and 3 1. Disconnect the control from power supply. 2. Disconnect switch leads from terminal block, noting terminal post numbers marked on switch mechanism. NOTE: Before removing existing mercury switch, loosen cement holding switch by gently prying between switch clips and glass tube. 3. Remove mercury switch from clips, Figure 11. Figure 11 4. Place new mercury switch into clips, making certain that Replacing Mercury Bulb switch legs are positioned to help prevent fouling of leads. 42-683 Electric Switch Mechanisms 4 5. Glue switch to clips, using a cement such as DuPont ® Duco, Goodyear Pliobond , shellac or equivalent, refer to Figure 11. 6. Connect switch leads to terminal block on identical post positions as those in the original assembly. 7. Check to be certain that the switch leads do NOT cross over or under one another. 8. Swing magnet assembly in and out by hand, checking 3 ⁄8" carefully for any sign of binding. Assembly should require minimum force to move through its full swing. Contact factory if binding is observed. NOTE: DPDT mechanisms have “left hand” and “right hand” switches, as viewed facing terminal block of mechanism. Refer to Figure 3. Follow all steps for switch replacement and adjust- ment described above. Reconnect power supply, and test switch action by varying liquid level in the vessel or by “blow- ing down” float chamber. 2.2.2 Series E, T and 2 Follow instructions for Series A except: Figure 12 Vibration Resistant 1. Replace new mercury switch into clips making certain Mercury Switch 3 that a space of ⁄8" exists from edge of clip to point where lead wires attach to glass tube. Refer to Figure 12. Lead wires should project downward at 90% angle from hori- zontal plane. 2. Glue switch to clips using a cement such as DuPont Duco, ® Goodyear Pliobond , Shellac or equivalent. NOTE Some vibration resistant switch bulbs may be held in place with retaining springs. Simply slide replacement switch under spring and position as required. 3. Connect switch leads to terminal block on identical post positions as used in the original assembly. NOTE: Check to be certain that switch glass tube is not resting on the upper switch lead, and that switch leads drape loosely when switch magnet is in the “swing out” position. Glass tube may be slid forward in clips toward terminal block to correct such conditions. 4. Check new mercury switch carefully to see that it makes and breaks circuit properly. a. Slowly swing switch magnet through its operating angle. Mercury must make and break contact between elec- trodes before magnet comes to its IN stop or OUT stop. b. If action is incorrect, contact factory for replacement. NOTE: A properly adjusted mercury switch will have equal overtravel tilt in both directions after switch actuation. 42-683 Electric Switch Mechanisms 5 5. DPDT switch mechanisms have two mercury switches car- ried by the pivoted magnet. Follow all steps 1 through 4. Reconnect power supply and test switch action by varying liquid level in the vessel or by “blowing down” float chamber. 2.3 Replacing dry contact switches 2.3.1 Series B, C, D, F, O, Q and S 1. Disconnect control from power supply. 2. Disconnect switch leads from terminal block. Note and record terminal connections of switch to be replaced. 3. Remove two mounting screws holding existing switch, Adjusting refer to Figure 13. Screw 4. Remove existing switch and install replacement switch in the same position, tightening mounting screws securely. Mounting NOTE: For proper operation of the replacement switch, it must actu- Screws ate in the middle portion of the pivoted magnet’s swing. Figure 13 5. Check switch action and adjust as follows: Dry Contact Switch Mechanism a. Slowly rotate the pivoted magnet by hand, back and forth through its angle of swing, listening closely for the actuating click of the switch in each direction. b. Check to see if there is equal overtravel of magnet in its swing after the switch click in either direction. c. If switch actuation is not correct, change adjustment of 1 actuating screw using a ⁄16" hexagon key wrench, refer to Figure 13. NOTE: If a single switch is being replaced on a DPDT mechanism, lever of second switch must be depressed and held to allow for the audible adjustment of new switch, as described above. d. With new switch in adjustment, release lever of second switch and perform fine-tuning of both switches to provide simultaneous actuation (clicks). 6. Reconnect power supply and test switch action by varying liquid level in the vessel or by “blowing down” float chamber. 42-683 Electric Switch Mechanisms 6 2.4 Vibration Service Adjustment 2.4.1 Series E, T and 2 Level controls are frequently used on applications where vibration is encountered, such as on scrubbers in oil field installations. Switch mechanisms may require repositioning Vessel to prevent sloshing of mercury in switches. This position is usually best at right angles to the direction of vibration. Baffle plate The direction of vibration may be determined by the Frame mounting screw arrangement of connections to the vessel or the vessels mounting method. Accordingly, the vibration will tend to be in one direction only. Incorrect Upon determining the vibration direction, switch mecha- nism(s) may be rotated from an incorrect position (as shown in Figure 14, illustration is shown as looking at a control from above), to a correct position as follows: Caution: Before attempting to remove a switch mechanism, be cer- Direction of tain to pull disconnect switch or otherwise assure that vibration electrical circuit through control is de-energized. 1. Disconnect control from power supply. 2. Loosen screw in split mounting clamp until mechanism turns freely on enclosing tube, refer to Figure 9 on page 4. Baffle plate 3. Rotate entire mechanism and bottom baffle plate together to the correct position. Caution: Be certain power supply wires retain some slack at new position. Do not pull wires taut. Correct NOTE: Amount of rotation required will vary with each installation and may not be as much as shown in illustration. 4. Check action of mercury in switch at new position. When Swing of switch mercury sloshes from side to side in glass tube, instead of Direction of vibration end to end, correct position has been attained. 5. Tighten clamp screw on switch mechanism. Figure 14 6. Reconnect power supply, and test switch action under Rotation of Switch Mechanism in Vibration operating conditions. 42-683 Electric Switch Mechanisms 7 3.0 Wiring Circuits shown are for direct acting level switches and are reversed in side mounting float-in-tank models, which uti- lize a reversing float pivot. NOTE: See bulletin 42-694 for wiring diagrams for “HS” Series hermetically sealed switches. 3.1 SPDT Terminal Connections 3.1.1 Single float with one switch or single stage displacer 1. Rising level closes contacts 5 & 6, see Figure 15. 2. Falling level closes contacts 4 & 5. 3. Wiring Diagram is reversed (high level actuation becomes low level actuation, etc.) when this switch mechanism is used on side mounted float switches employing a reversing pivot (Models B40, T52, T62, T63, etc.). 3.1.2 Single float with two switches or dual stage displacer 1. Rising level closes contacts 5 & 6 and 2 & 3, see Figure 16. 2. Falling level closes contacts 4 & 5 and 1 & 2. 3. Wiring diagram is reversed (high level actuation becomes low level actuation, etc.) when this switch mechanism is used on side mounted float switches employing a reversing pivot (Models B40, T52, T62, T63, etc.). 4. On units with tandem floats, the top float operates the bottom mechanism while the bottom float actuates the top mechanism. Upper stage operates Assem. A upper switch mechanism Internal Load Circuit Close on Low Level (NC) 1 Common (C) 2 Internal Close on High Level (NO) Load Circuit 3 Close on Low Level (NC) 4 Load Common (C) 5 Line Close on High Level (NO) 6 Load Lower stage operates Assem. Line B lower switch mechanism Figure 15 Internal Load Circuit Close on Low Level (NC) Single Float with One Switch 4 or Single Stage Displacer Common (C) 5 Close on High Level (NO) 6 Load Line Figure 16 Single Float with Two Switches or Dual Stage Displacer 42-683 Electric Switch Mechanisms 8 3.1.3 Single float with three switches or three stage displacer: 1. Rising level closes contacts 5 & 6 and 2 & 3, see Figure 17. 2. Falling level closes contacts 4 & 5 and 1 & 2. 3. Unit is shipped with switches positioned for proper function. Do not change switch spacing. Upper stage operates Assem. B upper switch mechanism Internal Load Circuit Close on Low Level (NC) 4 Common (C) 5 Close on High Level (NO) 6 Load Line Middle stage operates Assem. A middle switch mechanism Internal Load Circuit Close on Low Level (NC) 1 Common (C) 2 Close on High Level (NO) 3 Load Line Lower stage operates Assem. lower switch mechanism B Internal Load Circuit Close on Low Level (NC) 4 Common (C) 5 Close on High Level (NO) 6 Load Line Figure 17 Single Float with Three Switches or Three Stage Displacer 42-683 Electric Switch Mechanisms 9 3.2 DPDT Terminal Connections 3.2.1 Single float with one switch or single stage displacer 1. Rising level closes contacts 5 & 6 and 2 & 3, see Figure18. 2. Falling level closes contacts 4 & 5 and 1 & 2. 3. Double pole action is obtained by simultaneous operation of the right and left side single pole double throw switches. 4. Wiring diagram is reversed (close on high becomes close on low, etc.) when this switch mechanism is used on side mounted float switches employing a reversing pivot. (Models B40, T52, T62, T63, etc.) 3.2.2 Single float with two switches or dual stage displacer 1. Rising level closes contacts 5 & 6 and 2 & 3, see Figure 19. 2. Falling level closes contacts 4 & 5 and 1 & 2. 3. Double pole action is obtained by simultaneous operation of the right and left side single pole switches. 4. Wiring diagram is reversed (close on high becomes close on low, etc.) when this switch mechanism is used on side mounted float switches employing a reversing pivot. (Models B40, T52, T62, T63, etc.) 5. On units with tandem floats, the top float operates the bottom mechanism while the bottom float actuates the top mechanism. Lower stage operates lower switch mechanism Internal Circuit Internal Circuit (Left Switch) (Right Switch) 4 1 5 2 6 3 Load Load Close on high level (NO) Close on high level (NO) Common (C) Common (C) Close on low level (NC) Close on low level (NC) Internal Circuit Internal Circuit Load Load (Left Switch) (Right Switch) 4 1 Line Line 5 2 6 3 Upper stage operates upper switch mechanism Load Load Internal Circuit Internal Circuit Close on high level (NO) Close on high level (NO) (Left Switch) (Right Switch) 4 1 Common (C) Common (C) 5 2 Close on low level (NC) Close on low level (NC) Load Load 6 3 Line Line Load Load Figure 18 Close on high level (NO) Close on high level (NO) Single Float with One Switch Common (C) Common (C) or Single Stage Displacer Close on low level (NC) Close on low level (NC) Load Load Line Line Figure 19 Single Float with Two Switches or Dual Stage Displacer 42-683 Electric Switch Mechanisms 10 3.2.3 Three Stage Displacer 1. Rising level closes contacts 5 & 6 and 2 & 3, see Figure 20. 2. Falling level closes contacts 4 & 5 and 1 & 2. 3. Double pole action is obtained by simultaneous operation of the right and left side single pole switches. Upper stage operates upper switch mechanism Internal Circuit Internal Circuit (Left Switch) (Right Switch) 4 1 5 2 6 3 Load Load Close on high level (NO) Close on high level (NO) Common (C) Common (C) Close on low level (NC) Close on low level (NC) Load Load Line Line Middle stage operates middle switch mechanism Internal Circuit Internal Circuit (Left Switch) (Right Switch) 4 1 5 2 6 3 Load Load Close on high level (NO) Close on high level (NO) Common (C) Common (C) Close on low level (NC) Close on low level (NC) Load Load Line Line Lower stage operates lower switch mechanism Internal Circuit Internal Circuit (Left Switch) (Right Switch) 4 1 5 2 6 3 Load Load Close on high level (NO) Close on high level (NO) Common (C) Common (C) Close on low level (NC) Close on low level (NC) Load Load Line Line Figure 20 Three Stage Displacer 42-683 Electric Switch Mechanisms 11 4.0 Switch Specifications RATING PROCESS SWITCH SWITCH TEMP. RANGE� LOAD Volts AC Volts DC SERIES TYPE °F (° C) 120 240 480 24 120 240 -20 to +550 � Non-Inductive Amp 13.00 6.50 3.70 10.00 10.00 5.00 A (-29 to +288) Mercury Inductive Amp 9.80 4.90 2.50 — 5.20 2.60 -20 to +750 1 1 1 1 1 3 Horsepower ⁄2 ⁄2 ⁄2 — ⁄2 ⁄2 (-29 to +399) Non-Inductive Amp 15.00 15.00 15.00 6.00 0.50 0.25 -40 to +250 B Snap Inductive Amp 15.00 15.00 15.00 5.00 0.05 0.03 (-40 to +121) 1 1 Horsepower ⁄8 ⁄4 ——— — Non-Inductive Amp 15.00 15.00 15.00 10.00 1.00 0.50 -40 to +450 C Snap Inductive Amp 15.00 15.00 15.00 5.00 0.50 — (-40 to +232) 1 1 Horsepower ⁄10 ⁄6 ——— — Non-Inductive Amp 10.00 — — 10.00 10.00 1.50 min. -40 to +250 3.00 max. D Snap (-40 to +121) Inductive Amp 3.80 — — — 2.20 — 1 1 Horsepower ⁄8 —— — ⁄8 — -20 to +550 � E Vibration Non-Inductive Amp 4.00 2.00 1.00 — 4.00 2.00 (-29 to +288) Resistant Inductive Amp 3.80 1.90 — — 2.40 1.20 -20 to +750 1 1 1 1 2 Mercury Horsepower ⁄8 ⁄8 —— ⁄6 ⁄6 (-29 to +399) F -50 to +750 Resistive Amp 2.50 — — 4.00 � 0.30 — (followed Hermetic (-46 to +399) Inductive Amp 2.50 — — 2.00 � 0.10 — by letter) F -50 to +250 Resistive Amp 1.00 — — 15.00 � —— (followed Hermetic (-46 to +121) Inductive Amp 1.00 — — 10.00 � —— by number) LA Non-Inductive Amp 13.00 6.50 3.70 — 10.00 5.00 LD Mercury Inductive Amp 9.80 4.90 2.50 — 5.20 2.60 -20 to +1000 LK 1 1 1 1 1 Horsepower ⁄2 ⁄2 ⁄2 — ⁄2 ⁄2 (-29 to +538) LN LB Mercury Non-Inductive Amp 4.00 2.00 1.00 — 4.00 2.00 LE -20 to +1000 Vibration Inductive Amp 3.80 1.90 — — 2.40 1.20 LL (-29 to +538) 1 1 1 1 Resistant Horsepower ⁄8 ⁄8 —— ⁄6 ⁄6 LO Mercury Same ratings as Series 3 switch — Limited to a NEMA 1 enclosure -20 to +750 M Manual Reset If multiple switches, only bottom mechanism will be manual reset. (-29 to +399) Non-Inductive Amp 13.00 6.50 3.70 — 10.00 5.00 -20 to +550 N Mercury Inductive Amp 9.80 4.90 2.50 — 5.20 2.60 (-29 to +288) 1 1 1 1 1 Horsepower ⁄2 ⁄2 ⁄2 — ⁄2 ⁄2 Non-Inductive Amp 15.00 15.00 15.00 — 1.00 0.50 -40 to +450 O Snap Inductive Amp 15.00 15.00 15.00 — — — (-40 to +232) 1 1 Horsepower ⁄10 ⁄6 —— — — Non-Inductive Amp 15.00 15.00 15.00 6.00 0.50 0.25 -40 to +250 Q Snap Inductive Amp 15.00 15.00 15.00 5.00 0.05 0.30 (-40 to +121) 1 1 Horsepower ⁄8 ⁄4 —— — — SA Non-Inductive Amp 15.00 15.00 15.00 — 1.00 0.50 SD -40 to +550 Inductive Amp 15.00 15.00 15.00 — 0.50 — Snap SK (-40 to +288) 1 1 Horsepower ⁄10 ⁄6 —— — — SN SB Non-Inductive Amp 10.00 — — 10.00 10.00 1.50 min. SE 3.00 max. -40 to +250 Snap SL Inductive Amp 3.80 — — — 2.20 — (-40 to +121) 1 1 SO Horsepower ⁄8 —— — ⁄8 — Non-Inductive Amp 4.00 2.00 1.00 — 4.00 2.00 -20 to +500 T Mercury Inductive Amp 3.80 1.90 — — 2.40 1.20 (-29 to +260) 1 1 1 1 Horsepower ⁄8 ⁄8 —— ⁄6 ⁄6 � Process temperatures based on +100° F (+38° C) ambient temperature. Continued on next page � On steam applications, use beaded lead mercury switches, Series 3 & 2. � 28 VDC 42-683 Electric Switch Mechanisms 12 RATING (amps) PROCESS SWITCH SWITCH TEMP. RANGE LOAD VOLTS AC VOLTS DC SERIES TYPE °F (°C) 120 240 480 24 120 240 (X) B Snap -40 to +250 Non-inductive 1.00 — — — — — (x=gold contacts) Gold Contacts (-40 to +121) Inductive 1.00 — — — — — (X) F Hermetic Snap -50 to +750 Non-inductive — — — 1.00 — — (x=gold contacts) Gold Contacts (-46 to +399) Inductive — — — — — 0.25 (X) HS Hermetic Snap -50 to +550 Non-inductive 1.00 — — 2.00 — — (x=gold contacts) Gold Contacts (-46 to +288) � Inductive — — — 1.00 — — � On steam applications, temperature down-rated to +400° F (+204° C) at +100° F (+38° C) ambient. 5.0 Replacement Switch Mechanisms 5.0.1 Switch Selection When replacing a switch only, determine whether the switch is the left or right hand switch by orienting the switch mechanism with the terminal block toward you. 5.0.2 Magnet strength Switch mechanisms are provided with different strength magnets as determined by the characteristics of the level switch. A red, red/yellow or yellow, black or blue dot is visible on each magnet. When ordering replacement switch mechanisms, be certain to determine the color dot on the magnet. For these types of switches, the tenth digit of the model number identifies the magnet used on the control. The correct magnet dot color may be chosen by finding the tenth digit of your model number at the top of the chart. Any model numbers preceded with an 'X' are spe- cially modified controls. Contact the factory for replace- ment part numbers. 42-683 Electric Switch Mechanisms 13 5.1 Yellow Dot Magnet Replacement Mechanisms 5.1.1 Series A, B, C, D, E, F, L, N, O, S & T – Yellow 10th Digit E, F, Y, M, W, Q, B, S, K Switch Only Switch 8th & 9th Series Contacts Quantity Digit Bottom Mech Middle Mech Top Mech Right Hand Left Hand 1 N/A AA, AK N/A SPDT 2 AB, AL 89-7401-012 N/A 89-7401-009 A 3 AC, AM 89-7401-012 89-7101-013 1 N/A AD, AN DPDT 89-7401-055 N/A 89-7101-014 2 AE, AO 89-7401-055 1 BA, BK N/A N/A 2 SPDT BB, BL 89-7401-104 N/A 89-7401-103 B 3 BC, BM 89-7401-104 89-7101-020 1 BD, BN N/A DPDT 89-7401-122 N/A 89-7101-020 2 BE, BO 89-7401-122 1 CA, CK N/A N/A SPDT 2 CB, CL 89-7401-110 N/A 89-7401-109 C 3 CC, CM 89-7401-110 89-7101-022 1 CD, CN DPDT 89-7401-125 N/A 89-7101-022 2 CE, CO 89-7401-125 1 DA, DK N/A N/A SPDT 2 DB, DL 89-7401-106 N/A 89-7401-105 D 3 DC, DM 89-7401-106 89-7101-024 1 DD, DM N/A DPDT 89-7401-123 N/A 89-7101-024 2 DE, DO 89-7401-123 1 EA, EK N/A N/A SPDT 2 EB, EL 89-7401-068 N/A 89-7401-063 E 3 EC, EM 89-7401-068 89-7101-015 1 N/A ED, EN DPDT 89-7401-052 N/A 89-7101-015 2 EE, EO 89-7401-052 1 FA, FK N/A SPDT 89-7401-095 N/A N/A 2 FB, FL 89-7401-096 F 89-7101-041 1 FD, FN N/A DPDT 89-7401-098 N/A 89-7101-041 2 FE, FO 89-7401-098 SPDT 1 LA, LK 89-7401-015 N/A L N/A 89-7101-042 DPDT 1 LD, LN 89-7401-024 89-7101-043 SPDT 1 89-7401-155 N/A LB, LL L (vibr res) N/A 89-7101-033 DPDT 1 LE, LO 89-7401-156 89-7101-044 SPDT 3 NC, NM 89-7401-012 89-7401-009 89-7401-012 N/A N 89-7101-013 DPDT 3 NE, NK 89-7401-055 89-7401-055 89-7401-055 89-7101-014 SPDT 3 OC, OM 89-7401-110 89-7401-109 89-7401-110 N/A O 89-7101-022 DPDT 3 OE, OK 89-7401-125 89-7401-125 89-7401-125 89-7101-022 SPDT 3 QC, QM 89-7401-104 89-7401-103 89-7401-104 N/A Q 89-7101-020 DPDT 3 QE, QK 89-7401-122 89-7401-122 89-7401-122 89-7101-020 SPDT 1 SA, SK 89-7401-126 N/A S N/A 89-7101-022 DPDT 1 SD, SN 89-7401-128 89-7101-022 SPDT 1 SB, SL 89-7401-129 N/A S (DC volt) N/A 89-7101-024 DPDT 1 SE, SO 89-7401-127 89-7101-024 SPDT 3 TC, TM 89-7401-068 89-7401-063 89-7401-068 N/A T 89-7101-015 DPDT 3 TE, TK 89-7401-052 89-7401-052 89-7401-052 89-7101-015 42-683 Electric Switch Mechanisms 14 5.1.2 Series 2, 3 & M – Yellow 10th Digit E, Y, Q, S F, M, W, B, K Switch Only Switch 8th & 9th Series Contacts Quantity Digit Single Mech Bottom Mech Middle Mech Top Mech Right Hand Left Hand 1 2A, 2K 89-7401-150 N/A N/A SPDT 2 2B, 2L 89-7401-150 N/A N/A 89-7401-149 2 3 2C, 2M 89-7401-150 89-7101-033 1 2D, 2N 89-7401-154 N/A DPDT 89-7401-154 N/A 89-7101-044 2 2E, 2O N/A 89-7401-154 1 3A, 3K 89-7401-147 N/A N/A SPDT 2 3B, 3L 89-7401-147 N/A N/A 89-7401-146 3 3 89-7401-147 89-7101-042 3C, 3M 1 3D, 3N 89-7401-148 N/A DPDT 89-7401-148 N/A 89-7101-043 2 3E, 3O N/A 89-7401-148 1 MA 89-7401-147 N/A N/A SPDT 2 MB 89-7401-147 N/A N/A 89-7401-146 M 3 MC 89-7401-147 89-7101-042 1 MD 89-7401-148 N/A DPDT 89-7401-148 N/A 89-7101-043 2 ME N/A 89-7401-148 5.2 Red, Black and Blue Dot Magnet Replacement Mechanisms 5.2.1 Series A, B, C & E – Red, Red/Yellow 10th Digit G, H, R, D, V, P, A, T, J Switch Only Switch 8th & 9th Series Contacts Quantity Digit Bottom Mech Middle Mech Top Mech Right Hand Left Hand 1 AA, AK N/A 89-7401-006 N/A SPDT 2 AB, AL 89-7401-003 N/A A 3 AC, AM 89-7401-173 89-7101-013 1 AD, AN N/A DPDT 89-7401-018 N/A 89-7101-014 2 AE, AO 89-7401-018 1 BA, BK N/A N/A SPDT 2 BB, BL 89-7401-102 N/A 89-7401-101 B 3 BC, BM 89-7401-102 89-7101-020 1 BD, BN N/A DPDT 89-7401-121 N/A 89-7101-020 2 BE, BO 89-7401-121 1 N/A CA, CK N/A SPDT 2 CB, CL 89-7401-108 N/A 89-7401-107 3 CC, CM 89-7401-108 C 89-7101-022 1 CD, CN N/A DPDT 89-7401-124 N/A 89-7101-022 2 89-7401-124 CE, CO 1 EA, EK N/A 89-7401-078 N/A SPDT 2 EB, EL 89-7401-073 N/A E 3 EC, EM 89-7401-177 89-7101-015 1 ED, EN N/A DPDT 89-7401-046 N/A 89-7101-015 2 EE, EO 89-7401-046 1 FA, FK N/A SPDT 89-7401-093 N/A 2 FB, FL 89-7401-094 F N/A 89-7101-041 1 N/A FD, FN DPDT 89-7401-097 89-7101-041 2 FE, FO 89-7401-097 42-683 Electric Switch Mechanisms 15 5.2.2 Series 2, 3 and M – Red, Red/Yellow 10th Digit G, R, P, T H, D, V, A, J Switch Only Switch 8th & 9th Series Contacts Quantity Digit Single Mech Bottom Mech Middle Mech Top Mech Right Hand Left Hand 1 2A, 2K 89-7401-152 N/A 89-7401-152 N/A SPDT 2 2B, 2L 89-7401-174 N/A N/A 2 3 2C, 2M 89-7401-177 89-7101-033 1 2D, 2N 89-7401-153 N/A DPDT 89-7401-153 N/A 89-7101-044 2 2E, 2O N/A 89-7401-153 1 3A, 3K 89-7401-158 N/A 89-7401-158 N/A SPDT 2 3B, 3L 89-7401-170 N/A N/A 3 3 89-7401-173 89-7101-042 3C, 3M 1 3D, 3N 89-7401-159 N/A DPDT 89-7401-159 N/A 89-7101-043 2 3E, 3O N/A 89-7401-159 1 MA 89-7401-158 N/A 89-7401-158 N/A SPDT 2 MB 89-7401-170 N/A N/A M 3 MC 89-7401-173 89-7101-042 1 MD 89-7401-159 N/A DPDT 89-7401-159 N/A 89-7101-043 2 ME N/A 89-7401-159 5.2.3 Series 2, 3 and M – Red/Black/Blue 10th Digit E, G Switch Only Switch 8th & 9th Series Contacts Quantity Digit Bottom Mech Middle Mech Top Mech Right Hand Left Hand 1 2A, 2K N/A SPDT 2 2B, 2L 89-7401-152 89-7401-174 N/A N/A 2 3 2C, 2M 89-7401-152 89-7401-174 89-7401-175 89-7101-033 1 2D, 2N DPDT N/A 89-7101-044 2 2E, 2O 1 3A, 3K N/A SPDT 2 3B, 3L 89-7401-158 89-7401-170 N/A N/A 3 3 89-7401-158 89-7401-170 89-7401-171 89-7101-042 3C, 3M 1 3D, 3N DPDT N/A 89-7101-043 2 3E, 3O 1 MA N/A SPDT 2 MB 89-7401-158 89-7401-170 N/A N/A M 3 MC 89-7401-158 89-7401-170 89-7401-171 89-7101-042 1 MD DPDT N/A 89-7101-043 2 ME 42-683 Electric Switch Mechanisms 16 6.0 Switch Housing Replacement Assemblies When ordering replacement parts for an existing Magnetrol instrument, please specify: 1. Model and serial numbers of control. 2. Description and part number of replacement kit. The proper replacement switch housing kit and parts can be determined by the last three characters of the model number. In section 6.1.1 on page 19, locate the eighth and ninth digits of your model number at the left side of the chart. Follow the appropriate row across the page while locating the tenth digit of your model number at the top of the chart. In section 6.1.2 on page 19, the chart lists the replacement housing kits according to description. 6.0.1 Aluminum Housings Die cast aluminum NEMA 4X housing replacements are available for general purpose or weather proof installations. Explosion proof NEMA 4X/7/9 and Class I, Div 1, Group B housing replacements are available for hazardous atmosphere locations. Die cast aluminum housings are fin- ished with a baked-on polyester powder coat paint. NOTE: Consult your local representative on applications to meet NEMA and other codes not covered in this bulletin. Enclosing Tube Assembly Switch Assembly Housing Cover Patent Label Lockwasher Baffle Plate Ground Screw Gasket Pipe Plug Set Screw Housing Base Set Screw O-ring Enclosing Tube Assembly Breather Drain (optional) Figure 21 Aluminum Housing Assembly 42-683 Electric Switch Mechanisms 17 6.0.2 Cast Iron Housings Cast Iron NEMA 7/9 housing replacements are available for hazardous atmosphere locations. Both Class I, Div. 1, Groups C & D and Group B versions are available. The grey iron cover and base are finished with a baked-on poly- ester powder coat paint. NOTE: Consult your local representative on applications to meet NEMA and other codes not covered in this bulletin. Figure 22 Cast Iron Housing Assembly 6.0.3 Carbon Steel Housings Carbon steel NEMA 4X switch housings are available for general purpose and weather proof installations. The hous- ing base is cast from aluminum while the cover is made from cold rolled steel. The housings are finished with a baked-on polyester powder coat paint. NOTE: Consult your local representative on applications to meet NEMA and other codes not covered in this bulletin. Figure 23 Carbon Steel Housing Assembly 42-683 Electric Switch Mechanisms 18 6.1 Replacement Housing Kits 6.1.1 Referenced by eighth, ninth and tenth digit Tenth Digit Eighth Digit Ninth Digit E, G, Y, R P, Q S, T F, H, D, M A, B J, K, G V, W A, B, C, D, E 89-6509-003* 89-6582-023 N/A 89-6510-003* 89-6582-024 N/A N/A 2, 3, A, B, C, D, E, K, L, M, N, O 89-6582-002 89-6582-023 89-6582-032 89-6582-005 89-6582-024 89-6582-033 89-6582-008 F, G, H, I, L, S U, V, W, X, Y 89-6582-003 89-6582-028 89-6582-006 89-6582-029 M A, B, C, D, E 89-6511-003* 89-6512-003* N/A N/A N/A N/A A, B, C, D, E N/A 89-6528-003 89-6582-025 N, O, Q, T N/A K, L, M, N, O 89-6578-001 89-6582-025 * Cover kit only. Housing base must be ordered separately by P/N 89-6505-003. 6.1.2 Referenced by description NEMA Cover NEMA NEMA 7/9 Housing Material NEMA 1 NEMA 4X NEMA 7/9 Group B 4X/7/9 Height 4X/7/9 with drain with drain CS cover, aluminum base 89-6511-003* 89-6509-003* N/A N/A N/A N/A Short Cast aluminum 89-6582-023 89-6582-023 89-6582-032 89-6582-028 N/A Cast Iron N/A 89-6582-002 N/A 89-6582-003 CS cover, aluminum base 89-6512-003* 89-6510-003* N/A N/A N/A N/A Tall Cast aluminum 89-6582-024 89-6582-024 89-6582-033 89-6582-029 N/A Cast Iron N/A 89-6582-005 89-6582-008 N/A 89-6582-006 CS cover, aluminum base 89-6528-003 N/A N/A X-Tall Cast aluminum N/A 89-6582-025 89-6582-025 N/A N/A N/A Cast Iron N/A 89-6578-001 * Cover kit only. Housing base must be ordered separately by P/N 89-6505-003. Lexan Cover Kit 89-6522-001* 6.2 Replacement Gaskets and Hardware Enclosure Ninth Baffle Cover Housing Material Tenth Digit Gasket O-ring Type Digit Plate* Hardware CS cover, aluminum base NEMA 4X A, B, C, D, E D, E, F, G, H, M, R, Y N/A N/A 36-5303-001 89-6508-001 NEMA 4X All A, B, P, Q Cast aluminum NEMA 4X/7/9 All A, B, E, P, Q 12-2201-253 Group B All G, J, K, S, T 12-2201-116 05-6657-001 N/A NEMA 7/9 K, L, M, N, O D, M, R, Y Cast iron 7/9 w/drain 12-2201-249 U, V, W, X, Y D, M, R, Y All All V, W * For models with manual reset options, see page 20 for parts 42-683 Electric Switch Mechanisms 19 7.0 Manual Reset Option 7.1 Parts Breakdown and Identification Part No. 89-6507-001, on Boiler Controls Equipped with Series M Switch Mechanism (*denotes included in kit) Fastening screw (or nut) Switch cover 1 Clamp screw ⁄4" Drilled hole 7 ⁄8" Switch assembly Baffle plate assembly* Round head screw* (Baffle Plate to Switch Mechanism) Reset plunger* Reset actuating assembly* Nameplate and serial number Figure 24 42-683 Electric Switch Mechanisms 20 7.2 Field Installation Instructions Caution: Before attempting work on any level control, be certain to pull disconnect switch or otherwise assure that electrical circuit through control is de-energized. 1. Remove switch cover by loosening fastening screw (or nut). 1 7 2. Drill a ⁄4" diameter hole in cover at ⁄8" up from bottom edge, as shown. 3. Disconnect wiring from supply side of terminal strip on switch mechanisms. NOTE: Measure location of switch mechanism(s) on enclosing tube and record for reference use during reassembly. (Measure from top of enclosing tube to top of mounting clamp on switch mechanism[s]). 4. Loosen screw in split mounting clamp of switch mecha- nism(s) until assembly moves freely on enclosing tube. 5. Remove small round head screw securing baffle plate to switch mechanism. 6. Carefully lift off switch mechanism(s) and baffle plate. Place on a clean surface, free of any metal particles that may be attracted onto the magnet(s). 7. Install a new baffle plate assembly, with manual reset mechanism, and carefully replace switch mechanism(s) in reverse of steps 3 through 6 above. 8. Replace switch cover, lining up drilled hole with hole in reset actuating mechanism. Do not tighten cover fastening screw (or nut) at this point. 9. Thread reset plunger into actuating mechanism through drilled hole in switch cover and thumb tighten securely. Reposition switch cover as necessary to be certain it does not bind reset plunger. 10. Tighten fastening screw (or nut) on switch cover and check action of plunger to see that it moves freely. 11. Blow down float chamber to test operation of manual reset mechanism. NOTE: Boiler level controls should not start firing equipment when boiler water level has returned to normal (safe point) until reset plunger has been manually depressed. If control starts firing equipment, magnet stop arm on switch mechanism must be 1 bent out on switch frame ⁄32" allowing magnet to swing further from enclosing tube arm and into the field of the reset magnet. Caution: If it is necessary to reposition manual reset plunger, entire switch mechanism(s) must be loosened and rotated on enclosing tube to desired position (refer to step 4). Do not attempt to position plunger by twisting switch cover or damage to switch mechanism(s) will result. 42-683 Electric Switch Mechanisms 21 8.0 Switch and Housing Model Codes The following charts identify the switch and housing model codes used with the buoyancy products. The eighth, ninth and tenth digit combinations may be used to identify the type and number of switches, number of contacts, switch magnet strength as well as housing type, size and options. The switch and housing codes in bold are currently valid and available in combination with various buoy- ancy products. The unbolded codes are no longer valid and should be replaced by the appropriate valid code. example model number: A A E NEMA NEMA NEMA NEMA NEMA Group NEMA Housing 4 4X 7/9 4X 4X/7/9 B ATEX 4X/7/9 ATEX Magnet Height Carbon Carbon Cast Cast Cast Cast Cast Iron Group B Cast Alum Dot Set Switch and Switch Steel Steel Iron Alum. Alum. Iron 3/4" NPT Cast Alum 1" NPT Color Points Contacts Options Type AAE AAY AKY AAQ AKQ —— AKS AA9 Yellow Short AAG AAR AKR AAP AKP —— AKT AAC Red 1 AAF AAM AKM AAB AKB AKW AU5 AKK AC9 Yellow AAH AAD AKD AAA AKA AKV AU7 AKJ ACC Red SPDT ABF ABM ALM ABB ALB ALW AV5 ALK AD9 Yellow Tall 2 ABH ABD ALD ABA ALA ALV AV7 ALJ ADC Red ACF ACM AMM ACB AMB AMW A75 AMK AE9 Yellow 3 ACH ACD AMD ACA AMA AMV A77 AMJ AEC Red ADE ADY ANY ADQ ANQ —— ANS AB9 Yellow Short ADG ADR ANR ADP ANP —— ANT ABC Red 1 ADF ADM ANM ADB ANB ANW AW5 ANK AF9 Yellow DPDT ADH ADD AND ADA ANA ANV AW7 ANJ AFC Red Tall AEF AEM AOM AEB AOB AOW AY5 AOK AG9 Yellow 2 AEH AED AOD AEA AOA AOV AY7 AOJ AGC Red —— AUY — AUQ — — — — Yellow Short —— AUR — AUP —— — — Red w/Drain 1 —— AUM — AUB — — — — Yellow —— AUD — AUA — — — — Red SPDT —— AVM — AVB — — — — Yellow Tall 2 —— AVD — AVA — — — — Red w/Drain —— AWM — AWB — — — — Yellow Mercury 3 — — AWD — AWA — — — — Red —— AXY — AXQ — — — — Yellow Short —— AXR — AXP —— — — Red w/Drain 1 —— AXM — AXB — — — — Yellow DPDT —— AXD — AXA — — — — Red Tall —— AYM — AYB — — — — Yellow w/Drain 2 —— AYD — AYA —— — — Red AFE AFY APY AFQ APQ — — — — Yellow Short AFG AFR APR AFP APP —— — — Red w/Heater 1 AFF AFM APM AFB APB — — — — Yellow AFH AFD APD AFA APA —— — — Red SPDT AGF AGM AQM AGB AQB — — — — Yellow Tall 2 AGH AGD AQD AGA AQA — — — — Red w/Heater AHF AHM ARM AHB ARB — — — — Yellow 3 AHH AHD ARD AHA ARA — — — — Red AIE AIY ASY AIQ ASQ — — — — Yellow Short AIG AIR ASR AIP ASP —— — — Red w/Heater 1 AIF AIM ASM AIB ASB — — — — Yellow DPDT AIH AID ASD AIA ASA — — — — Red Tall AJF AJM ATM AJB ATB — — — — Yellow w/Heater 2 AJH AJD ATD AJA ATA —— — — Red BAE BAY BKY BAQ BKQ —— BKS BA9 Yellow Short BAG BAR BKR BAP BKP —— BKT BAC Red 1 BAF BAM BKM BAB BKB BKW BU5 BKK BC9 Yellow BAH BAD BKD BAA BKA BKV BU7 BKJ BCC Red Dry SPDT BBF BBM BLM BBB BLB BLW BV5 BLK BD9 Yellow Contact 2 Tall BBH BBD BLD BBA BLA BLV BV7 BLJ BDC Red BCF BCM BMM BCB BMB BMW B75 BMK BE9 Yellow 3 BCH BCD BMD BCA BMA BMV B77 BMJ BEC Red 42-683 Electric Switch Mechanisms 22 8.0 Switch and Housing Model Codes NEMA NEMA NEMA NEMA NEMA Group NEMA Housing 4 4X 7/9 4X 4X/7/9 B ATEX 4X/7/9 ATEX Magnet Height Carbon Carbon Cast Cast Cast Cast Cast Iron Group B Cast Alum Dot Set Switch and Switch Steel Steel Iron Alum. Alum. Iron 3/4" NPT Cast Alum 1" NPT Color Points Contacts Options Type BDE BDY BNY BDQ BNQ —— BNS BB9 Yellow Short BDG BDR BNR BDP BNP —— BNT BBC Red 1 BDF BDM BNM BDB BNB BNW BW5 BNK BF9 Yellow DPDT BDH BDD BND BDA BNA BNV BW7 BNJ BFC Red Tall BEF BEM BOM BEB BOB BOW BY5 BOK BG9 Yellow 2 BEH BED BOD BEA BOA BOV BY7 BOJ BGC Red —— BUY — BUQ — — — — Yellow Short —— BUR — BUP — — — — Red w/Drain 1 —— BUM — BUB — — — — Yellow —— BUD — BUA —— — — Red SPDT —— BVM — BVB — — — — Yellow Tall 2 —— BVD — BVA — — — — Red w/Drain —— BWM — BWB — — — — Yellow 3 —— BWD — BWA —— — — Red —— BXY — BXQ — — — — Yellow Short —— BXR — BXP —— — — Red w/Drain Dry 1 —— BXM — BXB — — — — Yellow Contact DPDT —— BXD — BXA — — — — Red Tall —— BYM — BYB — — — — Yellow w/Drain 2 —— BYD — BYA —— — — Red BFE BFY BPY BFQ BPQ — — — — Yellow Short BFG BFR BPR BFP BPP —— — — Red w/Heater 1 BFF BFM BPM BFB BPB — — — — Yellow BFH BFD BPD BFA BPA —— — — Red SPDT BGF BGM BQM BGB BQB — — — — Yellow Tall 2 BGH BGD BQD BGA BQA — — — — Red w/Heater BHF BHM BRM BHB BRB — — — — Yellow 3 BHH BHD BRD BHA BRA —— — — Red BIE BIY BSY BIQ BSQ — — — — Yellow Short BIG BIR BSR BIP BSP —— — — Red w/Heater 1 BIF BIM BSM BIB BSB — — — — Yellow DPDT BIH BID BSD BIA BSA — — — — Red Tall BJF BJM BTM BJB BTB — — — — Yellow w/Heater 2 BJH BJD BTD BJA BTA —— — — Red CAE CAY CKY CAQ CKQ —— CKS CA9 Yellow Short CAG CAR CKR CAP CKP —— CKT CAC Red 1 CAF CAM CKM CAB CKB CKW CU5 CKK CC9 Yellow CAH CAD CKD CAA CKA CKV CU7 CKJ CCC Red SPDT CBF CBM CLM CBB CLB CLW CV5 CLK CD9 Yellow 2Tall CBH CBD CLD CBA CLA CLV CV7 CLJ CDC Red CCF CCM CMM CCB CMB CMW C75 CMK CE9 Yellow 3 CCH CCD CMD CCA CMA CMV C77 CMJ CEC Red CDE CDY CNY CDQ CNQ —— CNS CB9 Yellow Short CDG CDR CNR CDP CNP —— CNT CBC Red CDF CDM CNM CDB CNB CNW CW5 CNK CF9 Yellow 1 DPDT CDH CDD CND CDA CNA CNV CW7 CNJ CFC Red Tall CEF CEM COM CEB COB COW CY5 COK CG9 Yellow 2 CEH CED COD CEA COA COV CY7 COJ CGC Red Dry —— CUY — CUQ — — — — Yellow Short Contact —— CUR — CUP —— — — Red w/Drain 1 —— CUM — CUB — — — — Yellow —— CUD — CUA —— — — Red SPDT —— CVM — CVB — — — — Yellow Tall 2 —— CVD — CVA — — — — Red w/Drain —— CWM — CWB — — — — Yellow 3 —— CWD — CWA —— — — Red —— CXY — CXQ — — — — Yellow Short —— CXR — CXP —— — — Red w/Drain 1 —— CXM — CXB — — — — Yellow DPDT —— CXD — CXA — — — — Red Tall —— CYM — CYB — — — — Yellow w/Drain 2 —— CYD — CYA —— — — Red 42-683 Electric Switch Mechanisms 23 8.0 Switch and Housing Model Codes NEMA NEMA NEMA NEMA NEMA Group NEMA Housing 4 4X 7/9 4X 4X/7/9 B ATEX 4X/7/9 ATEX Magnet Height Carbon Carbon Cast Cast Cast Cast Cast Iron Group B Cast Alum Dot Set Switch and Switch Steel Steel Iron Alum. Alum. Iron 3/4" NPT Cast Alum 1" NPT Color Points Contacts Options Type CFE CFY CPY CFQ CPQ — — — — Yellow CFG CFR CPR CFP CPP —— — — Red Short 1 CFF CFM CPM CFB CPB — — — — Yellow w/Heater CFH CFD CPD CFA CPA —— — — Red SPDT CGF CGM CQM CGB CQB — — — — Yellow 2 CGH CGD CQD CGA CQA — — — — Red Tall CHF CHM CRM CHB CRB — — — — Yellow w/Heater Dry 3 CHH CHD CRD CHA CRA — — — — Red Contact CIE CIY CSY CIQ CSQ — — — — Yellow Short CIG CIR CSR CIP CSP —— — — Red w/Heater 1 CIF CIM CSM CIB CSB — — — — Yellow DPDT CIH CID CSD CIA CSA — — — — Red Tall CJF CJM CTM CJB CTB — — — — Yellow w/Heater 2 CJH CJD CTD CJA CTA —— — — Red DAE DAY DKY DAQ DKQ —— DKS DA9 Short 1 DAF DAM DKM DAB DKB DKW DU5 DKK DC9 SPDT DBF DBM DLM DBB DLB DLW DV5 DLK DD9 2Tall DCF DCM DMM DCB DMB DMW D75 DMK DE9 3 DDE DDY DNY DDQ DNQ —— DNS DB9 Short 1 DDF DDM DNM DDB DNB DNW DW5 DNK DF9 DPDT Tall DEF DEM DOM DEB DOB DOW DY5 DOK DG9 2 —— DUY — DUQ —— — — Shrt w/Drn 1 —— DUM — DUB —— — — SPDT Tall —— DVM — DVB —— — — 2 w/Drain DC —— DWM — DWB — — — — Yellow 3 Voltage —— DXY — DXQ —— — — Shrt w/Drn 1 Dry —— DXM — DXB — — — — DPDT Tall Contact —— DYM — DYB — — — — 2 w/Drain DFE DFY DPY DFQ DPQ —— — — Shrt w/Htr 1 DFF DFM DPM DFB DPB —— — — SPDT Tall DGF DGM DQM DGB DQB —— — — 2 w/Heater DHF DHM DRM DHB DRB —— — — 3 DIE DIY DSY DIQ DSQ —— — — Shrt w/Htr 1 DIF DIM DSM DIB DSB — — — — DPDT Tall DJF DJM DTM DJB DTB — — — — 2 w/Heater EAE EAY EKY EAQ EKQ —— EKS EA9 Yellow Short EAG EAR EKR EAP EKP —— EKT EAC Red 1 EAF EAM EKM EAB EKB EKW EU5 EKK EC9 Yellow EAH EAD EKD EAA EKA EKV EU7 EKJ ECC Red SPDT EBF EBM ELM EBB ELB ELW EV5 ELK ED9 Yellow 2Tall EBH EBD ELD EBA ELA ELV EV7 ELJ EDC Red ECF ECM EMM ECB EMB EMW E75 EMK EE9 Yellow 3 ECH ECD EMD ECA EMA EMV E77 EMJ EEC Red EDE EDY ENY EDQ ENQ —— ENS EB9 Yellow Short EDG EDR ENR EDP ENP —— ENT EBC Red 1 EDF EDM ENM EDB ENB ENW EW5 ENK EF9 Yellow DPDT Vibration EDH EDD END EDA ENA ENV EW7 ENJ EFC Red Tall Resistant EEF EEM EOM EEB EOB EOW EY5 EOK EG9 Yellow 2 Mercury EEH EED EOD EEA EOA EOV EY7 EOJ EGC Red —— EUY — EUQ — — — — Yellow Short —— EUR — EUP —— — — Red w/Drain 1 —— EUM — EUB — — — — Yellow —— EUD — EUA —— — — Red SPDT —— EVM — EVB — — — — Yellow Tall 2 —— EVD — EVA — — — — Red w/Drain —— EWM — EWB — — — — Yellow 3 —— EWD — EWA — — — — Red —— EXY — EXQ — — — — Yellow Short 1 DPDT —— EXR — EXP—— Red w/Drain 42-683 Electric Switch Mechanisms 24 8.0 Switch and Housing Model Codes NEMA NEMA NEMA NEMA NEMA Group NEMA Housing 4 4X 7/9 4X 4X/7/9 B ATEX 4X/7/9 ATEX Magnet Height Carbon Carbon Cast Cast Cast Cast Cast Iron Group B Cast Alum Dot Set Switch and Switch Steel Steel Iron Alum. Alum. Iron 3/4" NPT Cast Alum 1" NPT Color Points Contacts Options Type —— EXM — EXB — — — — Yellow 1 —— EXD — EXA —— — — Red Tall DPDT —— EYM — EYB — — — — Yellow w/Drain 2 —— EYD — EYA —— — — Red EFE EFY EPY EFQ EPQ — — — — Yellow Short EFG EFR EPR EFP EPP —— — — Red w/Heater 1 EFF EFM EPM EFB EPB — — — — Yellow EFH EFD EPD EFA EPA —— — — Red SPDT EGF EGM EQM EGB EQB — — — — Yellow Tall Dry 2 EGH EGD EQD EGA EQA — — — — Red w/Heater Contact EHF EHM ERM EHB ERB — — — — Yellow 3 EHH EHD ERD EHA ERA — — — — Red EIE EIY ESY EIQ ESQ — — — — Yellow Short EIG EIR ESR EIP ESP —— — — Red w/Heater 1 EIF EIM ESM EIB ESB — — — — Yellow DPDT EIH EID ESD EIA ESA — — — — Red Tall EJF EJM ETM EJB ETB — — — — Yellow w/Heater 2 EJH EJD ETD EJA ETA —— — — Red FAE FAY FKY FAQ FKQ —— FKS FA9 Yellow Short FAG FAR FKR FAP FKP —— FKT FAC Red 1 FAF FAM FKM FAB FKB FKW FU5 FKK FC9 Yellow FAH FAD FKD FAA FKA FKV FU7 FKJ FCC Red SPDT Tall FBF FBM FLM FBB FLB FLW FV5 FLK FD9 Yellow 2 FBH FBD FLD FBA FLA FLV FV7 FLJ FDC Red FDE FDY FNY FDQ FNQ —— FNS FB9 Yellow Short FDG FDR FNR FDP FNP —— FNT FBC Red 1 FDF FDM FNM FDB FNB FNW FW5 FNK FF9 Yellow FDH FDD FND FDA FNA FNV FW7 FNJ FFC Red DPDT Tall FEF FEM FOM FEB FOB FOW FY5 FOK FG9 Yellow 2 FEH FED FOD FEA FOA FOV FY7 FOJ FGC Red GAF GAM GKM —— GKW GU5 — — Yellow SPDT GAH GAD GKD —— GKV GU7 —— Red Tall GDF GDM GNM —— GNW GW5 — — Yellow Dual DPDT GDH GDD GND —— GNV GW7 —— Red Magnet 1 —— GUM — — — — — — Yellow Dry SPDT —— GUD — — — — — — Red Tall Contact —— GXM — — — — — — Yellow w/Drain DPDT —— GXD —— — — — — Red HAF HAM HKM —— HKW HU5 — — Yellow SPDT HAH HAD HKD —— HKV HU7 —— Red Tall HDF HDM HNM —— HNW HW5 — — Yellow Dual DPDT HDH HDD HND —— HNV HW7 —— Red Magnet 1 —— HUM — — — — — — Yellow Dry SPDT —— HUD — — — — — — Red Tall Contact —— HXM — — — — — — Yellow w/Drain DPDT —— HXD —— — — — — Red IAF IAM IKM —— IKW IU5 — — Yellow SPDT IAH IAD IKD —— IKV IU7 —— Red Tall DC IDF IDM INM —— INW IW5 — — Yellow DPDT Dual IDH IDD IND —— INV IW7 —— Red 1 Magnet —— IUM — — — — — — Yellow Dry SPDT —— IUD — — — — — — Red Tall Contact —— IXM — — — — — — Yellow w/Drain DPDT —— IXD —— — — — — Red 42-683 Electric Switch Mechanisms 25 8.0 Switch and Housing Model Codes NEMA NEMA NEMA NEMA NEMA Group NEMA Housing 4 4X 7/9 4X 4X/7/9 B ATEX 4X/7/9 ATEX Magnet Height Carbon Carbon Cast Cast Cast Cast Cast Iron Group B Cast Alum Dot Set Switch and Switch Steel Steel Iron Alum. Alum. Iron 3/4" NPT Cast Alum 1" NPT Color Points Contacts Options Type LAF LAM LKM —— LKW — — — SPDT High LDF LDM LNM —— LNW —— — temp DPDT Tall Yellow 1 LBF LBM LLM —— LLW — — — SPDT Merc For LEF LEM LOM —— LOW — — — DPDT B40 MAE MAY ——— — — — — Yellow Short MAG MAR ——— — — — — Red 1 MAF MAM ——— — — — — Yellow MAH MAD ——— — — — — Red MBF MBM ——— — — — — Yellow SPDT MBH MBD ——— — — — — Red 2 High Tall — MBE — — — — — — — R/B/B Temp mercury MCF MCM ——— — — — — Yellow with MCH MCD — — — — — — — Red 3 Manual — MCE — — — — — — — R/B/B Reset MDE MDY ——— — — — — Yellow Short MDG MDR ——— — — — — Red 1 MDF MDM ——— — — — — Yellow DPDT MDH MDD ——— — — — — Red Tall MEF MEM ——— — — — — Yellow 2 MEH MED ——— — — — — Red NCF NCM NMM NCB NMB NMI — NMN — SPDT X-Tall NEF NEM NKM NEB NKB NKI — NKN — DPDT Mercury NHF NHM NRM NHB NRB —— — — SPDT X-Tall Yellow for 3 NJF NJM NLM NJB NLB — — — — DPDT w/Heater C10/C15 —— NWM — NWB — — — — SPDT X-Tall —— NNM — NNB — — — — DPDT w/Drain OCF OCM OMM OCB OMB OMI — OMN — SPDT X-Tall OEF OEM OKM OEB OKB OKI — OKN — DPDT Dry OHF OHM ORM OHB ORB —— — — SPDT X-Tall Contact Yellow 3 OJF OJM OLM OJB OLB — — — — DPDT w/Heater for —— OWM — OWB — — — — SPDT X-Tall C10/C15 —— ONM — ONB — — — — DPDT w/Drain QCF QCM QMM QCB QMB QMI — QMN — SPDT X-Tall QEF QEM QKM QEB QKB QKI — QKN — DPDT Dry QHF QHM QRM QHB QRB —— — — SPDT X-Tall Contact Yellow 3 QJF QJM QLM QJB QLB — — — — DPDT w/Heater for —— QWM — QWB — — — — SPDT X-Tall C10/C15 —— QNM — QNB — — — — DPDT w/Drain SAF SAM SKM SAB SKB SKW — SKK — Dry SPDT Contact SDF SDM SNM SDB SNB SNW — SNK — DPDT for B40 Yellow 1 Tall SBF SBM SLM SBB SLB SLW — SLK — DC Dry SPDT Contact SEF SEM SOM SEB SOB SOW — SOK — DPDT for B40 TCF TCM TMM TCB TMB TMI — TMN — SPDT X-Tall Vibration TEF TEM TKM TEB TKB TKI — TKN — DPDT Resistant THF THM TRM THB TRB —— — — SPDT X-Tall Mercury 3 Yellow TJF TJM TLM TJB TLB —— — — DPDT w/Heater for —— TWM — TWB — — — — SPDT X-Tall C10/C15 —— TNM — TNB — — — — DPDT w/Drain 42-683 Electric Switch Mechanisms 26 8.0 Switch and Housing Model Codes NEMA NEMA NEMA NEMA NEMA Group NEMA Housing 4 4X 7/9 4X 4X/7/9 B ATEX 4X/7/9 ATEX Magnet Height Carbon Carbon Cast Cast Cast Cast Cast Iron Group B Cast Alum Dot Set Switch and Switch Steel Steel Iron Alum. Alum. Iron 3/4" NPT Cast Alum 1" NPT Color Points Contacts Options Type 2AE 2AY 2KY 2AQ 2KQ —— 2KS 2A9 Yellow Short 2AG 2AR 2KR 2AP 2KP —— 2KT 2AC Red 1 2AF 2AM 2KM 2AB 2KB 2KW 2U5 2KK 2C9 Yellow 2AH 2AD 2KD 2AA 2KA 2KV 2U7 2KJ 2CC Red 2BF 2BM 2LM 2BB 2LB 2LW 2V5 2LK 2D9 Yellow SPDT 2BH 2BD 2LD 2BA 2LA 2LV 2V7 2LJ 2DC Red 2 Tall —— — — 2LE —— 2LG — R/B/B 2CF 2CM 2MM 2CB 2MB 2MW 275 2MK 2E9 Yellow 2CH 2CD 2MD 2CA 2MA 2MV 277 2MJ 2EC Red 3 —— — — 2ME —— 2MG — R/B/B 2DE 2DY 2NY 2DQ 2NQ —— 2NS 2B9 Yellow Short 2DG 2DR 2NR 2DP 2NP —— 2NT 2BC Red 1 2DF 2DM 2NM 2DB 2NB 2NW 2W5 2NK 2F9 Yellow DPDT 2DH 2DD 2ND 2DA 2NA 2NV 2W7 2NJ 2FC Red Tall 2EF 2EM 2OM 2EB 2OB 2OW 2Y5 2OK 2G9 Yellow 2 2EH 2ED 2OD 2EA 2OA 2OV 2Y7 2OJ 2GC Red —— 2UY — 2UQ — — — — Yellow Short —— 2UR — 2UP —— — — Red w/Drain 1 —— 2UM — 2UB — — — — Yellow —— 2UD — 2UA —— — — Red SPDT High —— 2VM — 2VB — — — — Yellow Tall 2 Temp — — 2VD — 2VA — — — — Red w/Drain Vibration —— 2WM — 2WB — — — — Yellow Resistant 3 —— 2WD — 2WA — —— — Red Mercury —— 2XY — 2XQ — — — — Yellow Short —— 2XR — 2XP —— — — Red w/Drain 1 —— 2XM — 2XB — — — — Yellow DPDT —— 2XD — 2XA — — — — Red Tall —— 2YM — 2YB — — — — Yellow w/Drain 2 —— 2YD — 2YA —— — — Red 2FE 2FY 2PY 2FQ 2PQ — — — — Yellow Short 2FG 2FR 2PR 2FP 2PP —— — — Red w/Heater 1 2FF 2FM 2PM 2FB 2PB — — — — Yellow 2FH 2FD 2PD 2FA 2PA —— — — Red SPDT 2GF 2GM 2QM 2GB 2QB — — — — Yellow Tall 2 2GH 2GD 2QD 2GA 2QA — — — — Red w/Heater 2HF 2HM 2RM 2HB 2RB — — — — Yellow 3 2HH 2HD 2RD 2HA 2RA — — — — Red 2IE 2IY 2SY 2IQ 2SQ — — — — Yellow Short 2IG 2IR 2SR 2IP 2SP —— — — Red w/Heater 1 2IF 2IM 2SM 2IB 2SB — — — — Yellow DPDT 2IH 2ID 2SD 2IA 2SA — — — — Red Tall 2JF 2JM 2TM 2JB 2TB — — — — Yellow w/Heater 2 2JH 2JD 2TD 2JA 2TA —— — — Red 42-683 Electric Switch Mechanisms 27 8.0 Switch and Housing Model Codes NEMA NEMA NEMA NEMA NEMA Group NEMA Housing 4 4X 7/9 4X 4X/7/9 B ATEX 4X/7/9 ATEX Magnet Height Carbon Carbon Cast Cast Cast Cast Cast Iron Group B Cast Alum Dot Set Switch and Switch Steel Steel Iron Alum. Alum. Iron 3/4" NPT Cast Alum 1" NPT Color Points Contacts Options Type 3AE 3AY 3KY 3AQ 3KQ —— 3KS 3A9 Yellow Short 3AG 3AR 3KR 3AP 3KP —— 3KT 3AC Red 1 3AF 3AM 3KM 3AB 3KB 3KW 3U5 3KK 3C9 Yellow 3AH 3AD 3KD 3AA 3KA 3KV 3U7 3KJ 3CC Red 3BF 3BM 3LM 3BB 3LB 3LW 3V5 3LK 3D9 Yellow SPDT 3BH 3BD 3LD 3BA 3LA 3LV 3V7 3LJ 3DC Red 2 Tall ——— — 3LE —— 3LG — R/B/B 3CF 3CM 3MM 3CB 3MB 3MW 375 3MK 3E9 Yellow 3CH 3CD 3MD 3CA 3MA 3MV 377 3MJ 3EC Red 3 ——— — 3ME —— 3MG — R/B/B 3DE 3DY 3NY 3DQ 3NQ —— 3NS 3B9 Yellow Short 3DG 3DR 3NR 3DP 3NP —— 3NT 3BC Red 1 3DF 3DM 3NM 3DB 3NB 3NW 3W5 3NK 3F9 Yellow DPDT 3DH 3DD 3ND 3DA 3NA 3NV 3W7 3NJ 3FC Red Tall 3EF 3EM 3OM 3EB 3OB 3OW 3Y5 3OK 3G9 Yellow 2 3EH 3ED 3OD 3EA 3OA 3OV 3Y7 3OJ 3GC Red —— 3UY — 3UQ — — — — Yellow Short —— 3UR — 3UP — — — — Red 1 w/Drain —— 3UM — 3UB — — — — Yellow —— 3UD — 3UA —— — — Red SPDT —— 3VM — 3VB — — — — Yellow Tall 2 High — — 3VD — 3VA — — — — Red w/Drain Temp —— 3WM — 3WB — — — — Yellow Mercury 3 —— 3WD — 3WA — — — — Red —— 3XY — 3XQ — — — — Yellow Short —— 3XR — 3XP —— — — Red w/Drain 1 —— 3XM — 3XB — — — — Yellow DPDT —— 3XD — 3XA — — — — Red Tall —— 3YM — 3YB — — — — Yellow w/Drain 2 —— 3YD — 3YA —— — — Red 3FE 3FY 3PY 3FQ 3PQ — — — — Yellow Short 3FG 3FR 3PR 3FP 3PP —— — — Red w/Heater 1 3FF 3FM 3PM 3FB 3PB — — — — Yellow 3FH 3FD 3PD 3FA 3PA —— — — Red SPDT 3GF 3GM 3QM 3GB 3QB — — — — Yellow Tall 2 3GH 3GD 3QD 3GA 3QA — — — — Red w/Heater 3HF 3HM 3RM 3HB 3RB — — — — Yellow 3 3HH 3HD 3RD 3HA 3RA — — — — Red 3IE 3IY 3SY 3IQ 3SQ — — — — Yellow Short 3IG 3IR 3SR 3IP 3SP —— — — Red w/Heater 1 3IF 3IM 3SM 3IB 3SB — — — — Yellow DPDT 3IH 3ID 3SD 3IA 3SA — — — — Red Tall w/Heater 3JF 3JM 3TM 3JB 3TB — — — — Yellow 2 3JH 3JD 3TD 3JA 3TA —— — — Red 42-683 Electric Switch Mechanisms 28 ASSURED QUALITY & SERVICE COST LESS Service Policy Return Material Procedure Owners of Magnetrol/STI controls may request the return So that we may efficiently process any materials that are of a control or any part of a control for complete rebuild- returned, it is essential that a “Return Material ing or replacement. They will be rebuilt or replaced Authorization” (RMA) number be obtained from the promptly. Controls returned under our service policy factory, prior to the material's return. This is available must be returned by Prepaid transportation. through Magnetrol’s/STI’s local representative or Magnetrol/STI will repair or replace the control at no cost by contacting the factory. Please supply the following to the purchaser (or owner) other than transportation if: information: 1. Returned within the warranty period; and 1. Company Name 2. The factory inspection finds the cause of the claim 2. Description of Material to be covered under the warranty. 3. Serial Number 4. Reason for Return If the trouble is the result of conditions beyond our con- 5. Application trol; or, is NOT covered by the warranty, there will be charges for labor and the parts required to rebuild or Any unit that was used in a process must be properly replace the equipment. cleaned in accordance with OSHA standards, before it is returned to the factory. In some cases it may be expedient to ship replacement parts; or, in extreme cases a complete new control, to A Material Safety Data Sheet (MSDS) must accompany replace the original equipment before it is returned. If material that was used in any media. this is desired, notify the factory of both the model and All shipments returned to the factory must be by prepaid serial numbers of the control to be replaced. In such transportation. cases, credit for the materials returned will be determined All replacements will be shipped F.O.B. factory. on the basis of the applicability of our warranty. No claims for misapplication, labor, direct or consequen- tial damage will be allowed. 5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4000 • Fax 630-969-9489 • www.magnetrol.com 145 Jardin Drive, Units 1 & 2 • Concord, Ontario Canada L4K 1X7 • 905-738-9600 • Fax 905-738-1306 Heikensstraat 6 • B 9240 Zele, Belgium • 052 45.11.11 • Fax 052 45.09.93 Regent Business Ctr., Jubilee Rd. • Burgess Hill, Sussex RH15 9TL U.K. • 01444-871313 • Fax 01444-871317 5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4028 • Fax 630-969-9489 • www.sticontrols.com Copyright © 2006 Magnetrol International, Incorporated. All rights reserved. Printed in the USA. Magnetrol and Magnetrol logotype are registered trademarks of Magnetrol International. BULLETIN: 42-683.12 STI and STI logotype are registered trademarks of Magnetrol International. EFFECTIVE: April 2006 Performance specifications are effective with date of issue and are subject to change without notice. SUPERSEDES: January 2005