MA-305 & MA-318 Series MA-405 thru MA-419 Series Oil Submerged Actuators, Two-Position General Instructions APPLICATION MA6, MA7, MA8-XXX For Two-position operation of damper, valves, and Series other equipment which require the return to normal (See Table 2) position upon power interruption. WARNING Specifications do not apply to MZ-31X-15X or MA-41X-15X MA-3XX, MA-4XX which are not listed in this document. Series SPECIFICATIONS (See Table 1) Control Circuit: Two-wire. Shaft Rotation: MA-305, MA-405, CW 180° when power is applied. MA-31X, MA-41X, CW 170° when power is applied. Spring Return: CCW to original position when actuator is Damper Linkage: de-energized. AM-111 Crank arm for 5/16" diameter damper shaft Auxiliary Switch (-500 Models): SPDT makes (or breaks) AM-112 Crank arm for 3/8" diameter damper shaft AM-113 Crank arm for actuator or 1/2" diameter damper shaft circuit at powered end of stroke. AM-115 Crank arm for 7/16" diameter damper shaft Environment: AM-116 Splined crank arm for actuator Ambient Temperature Limits, AM-122 Linkage connector straight type Shipping & Storage -40 to 136°F (-40 to 58°C). AM-123 Damper Clip AM-125 5/16" diameter x 20" damper rod Humidity, 5 to 95% R.H., non-condensing. AM-125-048 5/16" diameter x 48" damper rod Locations, NEMA Type 4 with gasket (provided) and AM-132 Ball joint connector water-tight conduit connectors (not provided( installed. AM-161 Damper linkage kit Connections: Coded screw terminals. AM-161-1 Damper linkage kit Case: Die cast alumminum with two 1/2" conduit openings. AM-301 90° mounting bracket (except MA6, MA7, MA8-XXX) Mounting: Allow 6" (152 mm) clearance behind the actuator Valve Linkage for 60 lb-in. (6.8 N-m) actuators only wiring compartment. See Table 1 for additional data. (excdept MA7, MA8-XXX): Dimensions: AV-29 & AV-300 2-1/2" & 3" VB-9323 AV-391 1/2" to 1-1/4" VB-92XX or VB-93XX Base Actuators, 5-3/4" high x 5-3/8" wide x 6-9/16" deep AV-392 1-1/2" & 2" VB-92XX or VB-93XX (146 mm x 136 mm x 167 mm). AV-395 2-1/2" to 4" VB-92XX or VB-931X Hazardous Location Actuators, 8-7/8" high x 8-1/2" wide x 10-5/8" deep (225 mm x 216 mm x 167 mm). Aux. Switch (-500 Models) Actuator Aux. Switch (-500 Models) N.C. N.C. L1 Actuator N.O. L2 Com L1 or H L1 or H N.C. N.O. Motor Field Low Thermostat or Switch Com Coil Thermostat or Input L2 or G Actuator Actuator High Switch (Holding) N.O. L2 or G Input (Running) Multiple Actuator Figure 1. Wiring for MA-305 and 405 Series Figure 2. Wiring for Field Wiring / Pneumatic Piping MA-318, 416, 418 and 419 Series TABLE 1. SPECIFICATIONS Actuator Power Aux. * Input VA Rated No Load Nominal Damper Part Number Supply Switch (Watts) Running Holding Torque Timing † at Area** sq. ft. (m2) Mounting Application lb-in. (N-m) 75°F (24°C) Parallel Opposed Vac Hz MA-305 24 No 56 56 Upright MA-305-500 24 Yes 56 56 16 (1.8) 20 9 (0.8) 11 (1) Position Damper MA-405 120 No 25 48 48 Preferred Actuators MA-405-500 120 Yes 48 48 MA-318 24 No 92 32 MA-318-500 24 60 Yes 92 32 MA-416 208 No 104 38 MA-416-500 208 Yes 70 104 38 Outright Damper MA-418 120 No Running 108 42 60 (6.8) 20 33 (3.1) 43 (4) Shaft and Valve MA-418-500 120 Yes 25 108 42 Horizontal Actuators MA-419 240 No Holding 120 39 MA-419-500 240 Yes 120 39 MA5-419 240 50 No 120 39 MA5-419-500 240 Yes 120 39 *2 FLA, 12 LRA @ 240 / 120 Vac. 1 FLA, 6 LRA @ 240 Vac. **Damper ratings are nominal and based on standard (not low leakage) dampers at 1" (25.4 mm) W.C. pressure and 2000 FPM (10 m/s). † Spring return timing with full load opposing spring approximately 60 sec. MA-305-318-405-419 - 02-05 TABLE 2. PART NUMBERS FOR HAZARDOUS Mounting Location LOCATION APPLICATIONS* (Class 1, Groups C & D, and Class 2, Groups E, F & G Allow 6" (152 mm) clearance behind the actuator wiring hazardous locations; ref. EN-56-2) compartment. Locate actuator in a weather protected area. Three mounting holes are provided in the base of Standard Damper Actuator Valve Actuator Part Numbers Part Numbers for Part Numbers for the actuator. (See Figures 3 through 5 for mounting Hazardous Locations Hazardous Locations dimensions.) MA-305 MA6-305 --- MA-305 and MA-405 series actuators can be mounted MA-305-500 MA6-305-500 --- MA-405 MA6-405 --- in any position. The MA-318, MA-416, MA-418 and MA- MA-405-500 MA6-405-500 --- 419 series actuators must be mounted so that the output MA-318 MA6-318 MA8-318 shaft lies in a horizontal position. MA318-500 MA6-318-500 MA8-318-500 MA-416 MA6-416 MA8-416 To ensure water and weather resistance, install the cover MA-416-500 MA6-416-500 MA8-416-500 gasket (provided) and water-tight conduit fittings. MA-418 MA6-418 MA8-418 MA-418-500 MA6-418-500 MA8-418-500 MA-419 MA6-419 MA8-419 MA-419-500 MA6-419-500 MA8-419-500 MA6-419 MA7-419 MA7-419 MA5-419-500 MA7-419-500 MA7-419-500 * Models for hazardous locations are only available as factory enclosure / actuator assemblies. THEORY OF OPERATION Dimensions in inches 1" = 25.4 mm 1/2" Conduit Opening MA-305 or MA-405 series actuator output shaft rotates 180° Both Sides 4" 4-3/4" clockwise (CW) when energized and spring returns counterclockwise (CCW) to 0° when de-energized. 3-3/8" MA-31X and MA-41X series actuator output shaft rotates 170° clockwise (CW) when energized and spring returns 4-1/2" 5-3/4" counterclockwise (CCW) to 0° when de-energized. 15/16" 1/2" Dia. Shaft 17/64" Dia. MA-305 and MA-405 series actuator motors are assembled 3-7/8" Hole (3) to a gear train and stall at the end of the power stroke. 13/16" MA-318, MA-416, MA-418 and MA-419 series actuators have an end of travel switch which reduces the running input 2-1/4" 1-1/2" 4-3/4" 1/4" from 70 watts to 25 watts at the end of the CW rotation. 5-3/8" 4-1/2" 5-5/8" PRE-INSTALLATION Figure 3. Mounting Dimensions Inspection 10-5/8" Inspect the carton for damage. If damaged notify the Dimensions in inches 9-9/16" 1" = 25.4 mm appropriate carrier immediately. Inspect the device for obvious 9" 1/4" damage. Return damaged products. 4-1/2" Required Installation Items 2-1/8" • Wiring diagram 1/2" Dia. 4-7/32" 2-15/16" • Tools (not provided) Volt-ohm meter 8-7/8" 21/64" Holes (3) 4-13/32" Appropriate screwdriver for mounting screws Appropriate drill and drill bit for mounting screws 15/16" • Appropriate accessories 3-3/4" 3-1/16" 2-1/8" 7-1/2" 8-1/2" 6-1/8" • Mounting screws (not provided) Figure 4. Hazardous Location Housing INSTALLATION Mounting Dimensions for Control Actuators Always link the actuator to the load to allow the actuator to 10-13/16" reach full end of travel. Dimensions in inches 9" 1" = 25.4 mm CAUTION 4-1/2" 1. Installer mmust be a qualified experienced technician. 1/8" 8-7/8" 2. Disconnect power supply before installation to pre- 2-1/8" vent electrical shock and equipment damage. 3/4" Pipe Tap 2-15/16" 6-1/8" on Each Side 3. Make all connections in accordance with the wiring diagram and in accordance with national and local 4-13/32" electrical codes. 4. Do not exceed ratings of the device 5. Avoid locations where excessive vibration or corrosive 8-1/2" fumes are present. The case of the actuator is intend- ed for use primarily to provide a degree of protection Figure 5. Hazardous Location Housing against windblown dust, rain, sleet, and external ice Mounting Dimensions for Valve Actuators (See Valve Data for Valve Dimensions) formation (NEMA Type 4).