20 lb-in, SR Actuator, Two Position, 1. Aux. Switch, 24V

Overview

Spring return motors for two-position back draft, outdoor air changeover, zone, or minimum position damper control.

Features

• Operate outdoor air dampers for combustion or makeup air in residential and light commercial applications.
• Operate changeover dampers for heating and cooling systems.
• Operate minimum position dampers for ventilation and similar applications.
• Include internal SPDT switch for controlling auxiliary equipment, additional motors, or to provide a burner interlock switch.
• Spring returns motor to start position on power failure.
• Drive shafts located on both sides of motor.
• Adjustable auxiliary switch for cascading motors or operating auxiliary equipment.
• Thermal breaker for overload protection during lifting stroke or if motor stalls.

Product Specifications

Dimensions (in.)

4 1/2 in. high x 4 5/8 in. wide x 3 3/4 in. deep

Dimensions (mm)

114 mm high x 118 mm wide x 95 mm deep

Used With

Series 40, 80 circuits

Weight (lb)

4 lb 10 oz

Weight (kg)

2.1 kg

Item Type

Product

Mounting

Any position where the output shaft is horizontal

Frequency

60 Hz

Approvals, Underwriters Laboratories Inc.

Listed File: E4436, Guide: XAPX

Electrical Connections

Screw terminals

Operating Humidity Range (% RH)

5 to 95% RH

Supply Voltage

24 Vac

Operating Temperature Range (F)

32 F to 125 F

Operating Temperature Range (C)

0 C to 52 C

Timing

Run Time Maximum-- 55 sec

Internal Auxiliary Switch

1

Auxiliary Switch Ratings

AFL - 120 Vac-- 7.2A; ALR- 120 Vac-- 43.2A; AFL - 240 Vac-- 3.6A; ALR- 240 Vac-- 21.6A

Stroke

Angle of Rotation-- 75 degrees maximum

Control Signal

Two position, SPST

Fail Safe Mode

Spring Return

Torque Rating (lb-in.)

20 lb-in.

Torque Rating (Nm)

2.3 Nm

Additional Torque Ratings (lb-in.)

Breakaway-- 30 lb-in.

Additional Torque Ratings (Nm)

Breakaway-- 3.3 Nm

External Auxiliary Switches Available

Yes

Timing, Nominal

Opening-- 30 sec, Closing-- 25 sec

Spring Return Timing

Maximum-- 25 sec

Nominal Current Draw (amps)

Opening-- 1.85 A, Holding-- 0.6 A

Nominal Power (watts)

Opening-- 39 W, Holding-- 8.5 W

Motor shafts

2, Hexagonal shape

This item has no supplemental files.