- 24 V
- Power Consumption (Running) 5.5 W
- Power Consumption (Holding) 3 W
- Power Consumption For Wire Sizing 8.5 VA
- Torque 180 in-lb [20 Nm]
- Control Type DC 2...10 V
- Direction Of Motion Motor selectable with switch 0/1
- Direction of Rotation (Fail-Safe) Reversible with cw/ccw mounting
- Manual Override 5 mm hex crank (3/16" Allen), supplied
- Angle of Rotation 95
- Running Time (Motor) 95 s / 90°
- Running Time (Fail-safe) <20 s
- Protection category IP54
- Degree Of Protection NEMA 2
- Enclosure Type UL Enclosure Type 2
- Ambient Temperature -22...122°F [-30...50°C]
The AF..24-SR series actuators provide true spring return operation for reliable fail-safe
application and positive close off on air tight dampers. The spring return system provides
constant torque to the damper with, and without, power applied to the actuator. The AF..24-SR
series provides 95° of rotation and is provided with a graduated position indicator showing 0°
to 95°. The AF..24-SR uses a brushless DC motor which is controlled by an Application Specific
Integrated Circuit (ASIC) and a microprocessor. The microprocessor provides the intelligence to
the ASIC to provide a constant rotation rate and to know the actuator’s exact fail-safe position.
The ASIC monitors and controls the brushless DC motor’s rotation and provides a digital
rotation sensing function to prevent damage to the actuator in a stall condition. The actuator
may be stalled anywhere in its normal rotation without the need of mechanical end switches.
