Product Details
- Voltage (v)120 v
Description
Includes: Mounting bracket, self-centering shaft adapter,3mm crank.
MS4120,MS7520,MS8120 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.
MS4120,MS7520,MS8120 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 sub-motor with electronic stall protection for floating/modulating models.
- Brush DC sub-motor with electronic stall protection for 2-position models.
- Self-centering shaft adapter (shaft coupling) for wide range of shaft sizes.
- Models available for use with two-position, single pole single throw (spst),line- (Series 40) or low- (Series 80) voltage controls.
- Models available for use with floating or switched single-pole, double-throw (spdt) (Series 60) controls.
- Models available for use with proportional current or voltage (Series 70) controls.
- Models available with combined floating/modulating control in a single device.
- Models available with adjustable zero and span.
- Models available with line-voltage internal end switches.
- Access cover to facilitate connectivity.
- Metal housing with built-in mechanical end limits.
- Spring return direction field-selectable.
- Shaft position indicator and scale.
- Manual winding capability with locking function.
- UL (cUL) listed and CE compliant.
- All Models are plenum-rated per UL873.
- Actuator Type:Damper.
- Application Type:Fire and Smoke.
- Fail Safe Mode:Spring Return.
- Control Signal:2 position,SPST.
- Supply Voltage:100 to 250 Vac.
- Number of Internal Auxiliary Switch:2.
- External Auxiliary Switches Available:Yes,SW2-US.
- Shaft Adapter Type:Self Centering clamping.
- Manual Operation:Manual Crank.
- Mounting:Direct Coupled.
- Frequency:60 Hz,50 Hz.
- Rotational Stroke:95 ¬+/- 3 degrees.
- Rotational Stroke Adjustment:Mechanically limited 5 degree increments.
- Spring Return Direction:By orientation.
- Timing, Maximum Spring Return (sec):20 sec.
- Timing, Nominal Driving @ 60 Hz (sec):45 Sec.
- Dimensions (in.):9.72 in high x 3.94 in wide x 2.95 in deep.
- Compatible Damper Shafts (in.):3/8 to 1.06 in. round or 3/8 to 11/16 in. square.
- Temperature Range, Ambient (F):-40 to 140 F.
- Operating Humidity Range (% RH): 5 to 95% RH, non-condensing