AFB24-S | Damper Actuator | 180 in-lb | Spg Rtn | 24V | On/Off | Belimo
[Part# AFB24-S is the same as AFB24S]
Documents and manuals
Belimo AFB24-S Documents
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) |
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