Product Details
- Voltage24 v
Description
MS4103, MS7403, MS7503, and MS8103 Spring Return Direct Coupled Actuators (DCA) are used within heating, ventilating, and air-conditioning (HVAC) systems. They can drive a variety of quarter-turn, final control elements requiring spring return fail-safe operation.
- 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.
- 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.
- Torque/Force (lb-in., lbf): 44 lb-in.
- Torque/Force (Nm, N): 5 Nm.
- Fail Safe Mode: Spring Return.
- Control Signal: Floating.
- Control Signal: (0)2-10 Vdc (4-20 mA w/500 ohm resistor).
- Supply Voltage: 24 Vac/dc.
- Number of Internal Auxiliary Switch: 1.
- Type of Internal Auxiliary Switch:adjustable 0-95 degrees.
- Switch Ratings: 250 Vac, 8 A res (5 A ind).
- 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): 44 lb-in.
- Spring Return Torque/Force (Nm, N): 5 Nm.
- Maximum Stall Torque/Force (lb-in., lbf): 105 lb-in.
- Maximum Stall Torque/Force (Nm, N): 12 Nm.
- Mounting: Direct Coupled.
- Frequency: 50, 60 Hz.
- Rotational Stroke: 95 ±3 degrees.
- Rotational Stroke Adjustment: Mechanically limited 5 degree 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.
- Compatible Damper Shafts (in.): 3/8 to 5/8 in. round or 1/4 to 1/2 in. square.
- Compatible Damper Shafts (mm): 9 to 16 mm round or 6 to 13 mm square.
- Materials: Plenum rated plastic housing.
- Power Consumption (Driving): 8 VA.
- Input Impedance: Min. 95 kOhm.
- Electrical Connections: Enclosed screw terminal strip (22 to 14 AWG).
- Temperature Range, Ambient (F): .-40 F to +149F.
- Temperature Range, Storage (F): .-40 F to +150F.
- Temperature Ratings (Shipping)(F): .-40 F to +150F.
- Operating Humidity Range (% RH): 5 to 95% RH, non-condensing.
- 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.