Floating (0)2-10 Vdc Spring Return 27 lb-in. 3 Nm Direct Coupled Actuator

The MS7503 is a 27 lb-in (3Nm), spring return direct-coupled, line voltage actuator that accepts on/off (SPDT) or modulating (0/2-10 Vdc) control for: air dampers, air handlers, ventilation flaps, louvers, and ball valves. Features: Brushless DC submotor with electronic stall protection on all models Self-centering shaft adaptor (shaft coupling) for wide range of shaft sizes Models available for use with two-position, SPST, line- (Series 40) or low- (Series 80) voltage controls Models available for use with floating or switched SPDT (Series 60) controls Models available for use with proportional current or voltage (Series 70) controls Models available with combined floating and modulating control in a single device Models available with an internal end switch Models available with three-foot, 18 AWG color-coded cable Access cover to facilitate connectivity Durable plastic housing with built-in mechanical end limits Spring return direction field selectable Shaft position indicator and scale UL (cUL) listed and CE compliant All models are plenum rated per UL873 Specifications: Torque/Force (lb-in., lbf): 27 lb-in. Torque/Force (Nm, N): 3 Nm Fail Safe Mode: Spring Return Control Signal: Floating Control Signal: SPDT Control Signal: On/Off Control Signal: (0)2-10 Vdc (4-20 mA w/500 ohm resistor) Supply Voltage: 24 Vac/dc Number of Internal Auxiliary Switch: 0 External Auxiliary Switches Available: No Shaft Adapter Type: Self-centering clamping Feedback: (0)2-10 Vdc Manual operation: N/A Spring Return Torque/Force (lb-in., lbf): 27 lb-in Spring Return Torque/Force (Nm, N): 3 Nm Maximum Stall Torque/Force (lb-in., lbf): 70 lb-in. Maximum Stall Torque/Force (Nm, N): 8 Nm Mounting: Direct Coupled Rotational Stroke: 95 ±3 Degrees Rotational Stroke Adjustment: Mechanically limited 5 ° increments Rotation to Open: By switch Spring Return Direction: By orientation Timing, Maximum Spring Return (sec): 25 sec Timing, Nominal Driving @ 60 Hz (sec): 90 sec Dimensions (in.): 6-81/54 high x 3-55/84 wide x 3-5/32 deep Compatible Damper Shafts (in.): 3/8" to 5/8" round or 1/4" to 1/2" square Materials: Plenum rated plastic housing Power Consumption (Driving): 6/3 VA Input Impedance: Min. 95 k Ohm Electrical Connections: Enclosed screw terminal strip (22 to 14 AWG) Maximum Noise Rating, Driving (dB(A) @ 1m): 40 Maximum Noise Rating, Holding (dB(A) @ 1m): 20 (no audible noise) Environmental Rating: NEMA2 Ingress Protection Rating: IP54 Includes: Mounting bracket, self-centering shaft adapter