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.
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
- 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): 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
Specs
Product Type: |
Actuator |
---|---|
Actuator Type: |
Proportional Floating Two Position |
Voltage: |
24v |
Hertz: |
50 60 |
Torque: |
44 lb-in |
Height: |
7-1/2″ |
Fail Safe Mode: |
Spring Return |
Depth (Inches): |
3-5/32″ |
Width: |
3-55/84″ |
Features: |
NEMA 2 |
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