![Belimo NFB24-SR-S Damper Actuator — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/spec-9032665333982.png?v=1782840209&width=1946)
Belimo NFB24-SR-S Damper Actuator
Belimo NFB24-SR-S Damper Actuator
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SKU:279279
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![Belimo NFB24-SR-S Damper Actuator — New England Supply House spec card [NESH-SPEC-CARD-V2]](http://newenglandsupplyhouse.com/cdn/shop/files/spec-9032665333982.png?v=1782840209&width=1445)
Damper Actuator performance for HVAC is enhanced with the Belimo NFB24-SR-S. This high-quality Damper Actuator supports ON/OFF, direct-coupled, and modulating operation with spring-return for reliable damper positioning.
Powered by 24 Volt AC/DC, it delivers 3.5 Watts running and 2.5 Watts holding, providing 90 Inch-Pound torque across a 95° rotation. The control output is 2 to 10 Volt DC (0.5 mA) for precise damper positioning within typical HVAC sequences. Built for demanding environments, the enclosure is NEMA 2 / IP54, and the unit operates from -22 to 122 °F. A rugged zinc-coated metal body with a plastic casing keeps the actuator durable in service. It includes a 5 millimeter hex crank and (2) SPDT auxiliary switches for additional control options, and carries UL, CE, CAN/CSA E60730, and ISO 9001 approvals for quality assurance and reliability.
- Voltage: 24 V AC/DC
- Torque: 90 Inch-Pound
- Rotation: 95 degrees
- Output: 2–10 V DC, 0.5 mA
- Enclosure: NEMA 2 / IP54
- Operating Temp: -22 to 122 °F
- Includes: 5 mm hex crank, (2) SPDT auxiliary switches
- Compliance: UL, CE, CAN/CSA E60730, ISO 9001
Specifications
| Type | ON/OFF, Direct Coupled, Modulating |
|---|---|
| Size | 3.15 Inch Width x 3.42 Inch Depth x 9.69 Inch Height |
| Voltage Rating | 24 Volt AC/DC |
| Power Rating | 3.5 Watt (Running), 2.5 Watt (Holding) |
| Frequency | 50/60 Hertz |
| Application | HVAC System |
| Body Material | Zinc Coated Metal, Plastic Casing |
| Approvals | UL (Canada and US), UL 60730, CE, CAN/CSA E60730, ISO 9001 |
| Enclosure | NEMA 2, IP54 |
| Operation Type | Spring Return |
| Angle of Rotation | 95 Degree |
| Torque | 90 Inch-Pound |
| Shaft Diameter | 1/2 to 1.05 Inch |
| Operating Temperature | -22 to 122 Deg F |
| Supply Connection | 3 Foot 18 AWG Appliance Cable with 1/2 Inch Conduit Connector |
| Output Signal | 2 to 10 Volt DC, 0.5 Milliamp |
| Max AC Voltage | 24 Volt |
| Max DC Voltage | 24 Volt |