Product Details
- Voltage24 VAC
Description
Spring
return direct coupled actuators (DCA) for on/off damper control with an
integral junction box. The actuator accepts an on/off signal from a
single-pole, single-throw (SPST) controller. They are designed to
operate reliably in smoke control systems requiring Underwriter's
Laboratories Inc. UL555S ratings up to 350 F.
- Brush DC submotor 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.
- 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: SPST, 2 Position.
- Supply Voltage: 24 Vac +/- 20%.
- Number of Internal Aux. Switches: 2.
- Switch Ratings: 250 Vac, 5 A res (3 A ind).
- 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): 15 sec.
- Timing, Nominal Driving @ 60 Hz (sec): 15 Sec.
- Spring Return Direction: By orientation.
- Dimensions (in.): 10.67 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 F to 130 F.
- Operating Humidity Range (% RH): 5 to 95% RH, non-condensing.
- Includes: Self-centering shaft adapter, 3mm crank.