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Documents: AFB24-S

Datasheet Installation Instructions More Info

AFB24-S | Damper Actuator | 180 in-lb | Spg Rtn | 24V | On/Off | Belimo

[Part# AFB24-S is the same as AFB24S]

Brand: BelimoSKU: AFB24-S

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Overview Details for AFB24-S

The Belimo AFB24-S is a robust, spring-return damper actuator designed for on/off control in HVAC systems. It provides fail-safe operation, returning the damper to its default position in case of power failure.

This actuator is suitable for commercial HVAC applications requiring precise airflow control. The AFB24-S offers direct coupling to damper shafts up to 1.05" in diameter, simplifying installation and eliminating the need for linkages. It operates on 24V AC/DC and features two SPDT auxiliary switches for enhanced control and monitoring capabilities, such as fan start-up interlocks or position indication. The spring-return mechanism ensures consistent torque, both with and without power, providing reliable damper closure and airtightness.

The AFB24-S is built with a durable housing for protection against dust and moisture and offers a long lifespan with maintenance-free operation. It is an energy-efficient choice with low power consumption in both running and holding modes. Its compact size and easy installation make it a versatile solution for various HVAC applications.

Specifications

Item Number	AFB24-S
Brand	Belimo
Spring Return	Spring Return
Actuator Type	Spring Return Damper
Control Input	On/Off
Voltage	24V AC/DC
Torque	180 in-lb (20 Nm)
Running Time	<75 seconds (motor), <20 seconds (spring return at -4°F to 122°F), <60 seconds (spring return at -22°F)
Power Consumption (Running)	5W
Power Consumption (Holding)	2.5W
Auxiliary Switches	2 x SPDT (1 mA - 3 A, 0.5 A inductive, DC 5V - AC 250V)
Rotation Angle	95° (adjustable 35° - 95°)
Ambient Temperature Range	-22°F to 122°F (-30°C to 50°C)
Storage Temperature Range	-40°F to 176°F (-40°C to 80°C)
Enclosure Rating	NEMA 2 / IP54
Manual Override	5mm hex crank
Shaft Diameter	1/2" to 1.05" round (centers on 1/2" and 3/4" with insert, 1.05" without insert)