Manufacturers
NAMCO CONTROLS EA700
Description
Namco Controls EA700 Series Belt Misalignment Limit Switches
Part Number
EA700
Price
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Manufacturer
NAMCO CONTROLS
Lead Time
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Category
PRODUCTS - E
Datasheet
Namco-Controls-EA700-Series-Belt-Misalignment-Limit-Switches-datasheet1-1082321089.pdf
82 KiB
Extracted Text
Limit Belt Butt Misalignment Contacts Switches Switches for use on conveyor systems. Standard as well as Hazardous Location versions. One step maintained, two step and two step maintained versions available. Generous overtravel, Snap Action contacts action, Form Z Contact arrangement. EA700 Cam Action 2 N.O. - 2 N.C. Angle Angle Angle Angle Angle Angle Standard Wide Long A B C D E F Mounting Mounting Mounting Dir. Of Trip Reset Recom. Total 2nd Trip 2nd Reset Torque Model No. Model No. Model No. Operation Travel Travel Travel Travel Travel Travel (inch lbs) ONE STEP-MAINTAINED LEVER AND CONTACTS EA700-20137 EA700-50137 EA700-80137 CW/CCW 18° 14° 30° 90° -- 27 TWO STEP-MAINTAINED LEVER AND CONTACTS EA700-28437 EA700-58437 EA700-88437 CW/CCW 12° 10° 45° 90° 22° 10° - TWO STEP-SPRING RETURN EA700-20176 EA700-50176 EA700-80176 CW/CCW 12° 10° 45° 90° 22° 10° - EA800 Cam Action 2 N.O. - 2 N.C. Angle Angle Angle Angle Angle Angle AB CD E F Bronze Aluminum Cast Iron Dir. Of Trip Reset Recom. Total 2nd Trip 2nd Reset Torque Housing Housing Housing Operation Travel Travel Travel Travel Travel Travel (inch lbs) ONE-STEP MAINTAINED LEVER AND CONTACTS - EA800-20157 - CW/CCW 18° 14° 30° 90° -- 27 TWO STEP-SPRING RETURN EA800-28440 EA800-28450 - CW/CCW 12° 10° 45° 90° 22° 10° - See Operating Levers Section Namco • 2013 West Meeting Street • Lancaster, SC 29720 • 1-803-286-8491 • FAX: 1-800-678-6263 290 Limit Switches C F E B EA700/EA800 Contact Configurations Common Switch Characteristics ONE-STEP SWITCH DOUBLE POLE, STANDARD/HAZARDOUS LOCATION ENVIRONMENT, BUTT CONTACTS CW Initial CCW EA700 EA800 H G NEMA Enclosure Type 1, 4, 13 4, 4X, 6, 6P, F E 7 Class I, Group C & D, D C 9 Class II, B A Group E, F & G Housing Material Zinc Bronze/Aluminum/ Cast Iron Ambient Temperature Range* -20°C to +90°C TWO-STEP SWITCH / BI-DIRECTIONAL OPERATION Lever Adjustment 7°30’ Increments thru 360° C Contacts Butt, Silver Alloy, Form Z G H *Some high temperature (0° to 150°C) and low temperature (-40° to +90°C) E F versions available. Contact factory. C D A B 0˚ 12˚ 22˚ Operational Data Drawing Continuous Current Rating - Amperes ONE-STEP SWITCH VOLTAGE AC DC C C A A 125 20.0 5.0 B D D B 250 15.0 1.5 480 10.0 - 600 5.0 - 75-100% Power Factor TWO-STEP SWITCH D D 2013 West Meeting Street • Lancaster, SC 29720 1-803-286-8491 • FAX: 1-800-678-6263 www.namcocontrols.com For technical assistance, call 1-800-NAMTECH 291 B A F E C Limit Switches A Limit Belt Butt Misalignment Contacts Switches EA700 Series Drawings STANDARD MOUNTING PLATE 3.19" 48 Serrations (81.0) Equally Spaced 0.50" 0.92" 0.495/0.490 O.D. (12.7) (23.4) 1.31" 1.06" (33.3) (26.9) 0.44" (11.2) 0.68" (17.3) 2.63" 1/4–20 Thd. (66.8) 0.38 Deep Four Holes 4.94" (125.5) 7.06" (179.3) 0.125" 0.81" (3.2) (20.6) 1.12" 1.59" 0.02" (40.4) (28.4) (0.51) 2.25" 2.60" Max. (57.2) (66.0) 2.28" 1-11 1/2 NPT (57.9) Pipe Tap LONG MOUNTING PLATE WIDE MOUNTING PLATE 0.260/0.255 Dia. Four Holes 0.260/0.255 Dia. Four Holes 0.41" (10.4) 0.28" (7.1) 0.66" (16.8) 0.53" (13.5) 4.38" (111.3) 6.41" (162.8) 4.94" (125.5) 7.06" (179.3) 2.81" 0.22" 1.81" 0.22" (71.4) (5.6) (46.0) (5.6) 3.25" 2.25" (82.6) (57.2) Dimensions: inches/(mm) Namco • 2013 West Meeting Street • Lancaster, SC 29720 • 1-803-286-8491 • FAX: 1-800-678-6263 292 Limit Switches EA700/EA800 EA800 Series Drawings STANDARD MOUNTING PLATE 0.38" 3.64" (9.7) 0.62" (92.5) 0.406 Three Holes 0.38" (15.7) (9.7) 1.61" (40.9) 8.50" (215.9) 7.58" 48 Serrations (192.5) Equally Spaced 0.495/0.490 O.D. 1"-11 1/2 NPT Pipe Tap 2.0" 3.38" (50.8) (85.8) 4.60" 4.01" (116.8) (101.9) Dimensions: inches/(mm) 2013 West Meeting Street • Lancaster, SC 29720 1-803-286-8491 • FAX: 1-800-678-6263 www.namcocontrols.com For technical assistance, call 1-800-NAMTECH 293 Limit Switches
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