Modutrol IV Motor

Product Details:

• Replaces M744S,T,Y and M745S,T,Y Motors.
• M7261, M7274, M7281, M7284, and M7294 are non-spring return motors; M7272, M7282, M7285, and M7286 are spring return motors.
• Oil immersed motor and gear train for reliable performance and long life.
• Wiring box provides NEMA 3 weather protection.
• Actuator motor and circuitry operate from 24 Vac.
• Models available with factory installed transformer or an internal transformer can be field added.
• Quick connect terminals standard—screw terminal adapter available.
• Adapter bracket for matching shaft height of older motors is standard with replacement motors.
• Nominal timing of 30 seconds for 90° stroke and 60 seconds for 160° stroke.
• Valve and damper linkages, explosion-proof housing, and auxiliary switches available as accessories.
• Spring return motors are rated for 25 lb.-in. and 60 lb.-in torque.
• Non-spring return motors are rated for 35 lb.-in.
• 75 lb.-in., 150 lb.-in., and 300 lb.-in. torque.
• Models available with adjustable start (zero) and span.
• Models available with 4 to 20 mA input signal.
• Models available with 2 to 10 Vdc input signal.
• Die-cast aluminum housing.

• The Series 72 Modutrol IV Motors are used to control dampers and valves.
• The motors accept a current or voltage signal from an electronic controller to position a damper
• Valve at any point between open and closed.

• 198162AA Internal Transformer 120/208/240 Vac 50/60 Hz primary, 24 Vac secondary.
• 198162EA Internal Transformer; 120 Vac 50/60 Hz primary, 24 Vac secondary.
• 198162GA Internal Transformer; 220 Vac 50/60 Hz primary, 24 Vac secondary.
• 198162JA Internal Transformer; 24 Vac 50/60 Hz primary, 24 Vac secondary (for electrical isolation).
• 220736A Internal Auxiliary Switch Kit; one switch, can be field-installed on TRADELINE models.
• 220736B Internal Auxiliary Switch Kit; two switches, can be field-installed on TRADELINE models.
• 220738A Adapter Bracket raises motor shaft height by 19 mm to match that of previous Modutrol Motor models.
• 220741A Screw Terminal Adapter converts the standard quick-connect terminals to screw terminals.
• 221455A Infinitely Adjustable Crank Arm, can rotate through downward position and clear motor base without requiring an adapter bracket.
• 4074ERU Weatherproofing Kit provides NEMA 3 rating for Modutrol IV Motors mounted in position other than upright.
• 4074EZE Bag Assembly with parts that can provide CE compliance.

• Use the following guidelines for proper motor mounting:
• Always install motors with the crankshaft horizontal.
• Mounting flanges extending from motor housing base are drilled for 1/4 inch (6.4 mm) machine screws or bolts.
• Non-Spring Return Motors are shipped from the factory in the closed position (at the counterclockwise rotation limit, as viewed from the motor power end).
• Spring Return Motors are shipped from the factory in their normal position.
• Normally closed models are shipped at the counterclockwise rotation limit, as viewed from the motor power end.
• Normally open models are shipped at the clockwise rotation limit, as viewed from the motor power end.

Additional Information:

• Item Code: Series-72