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Belimo BF24-T 24V Spring-Return Fire & Smoke Damper Actuator with Dual Auxiliary Switches
- Regular price
- $999.00
- Sale price
- $999.00
- Regular price
-
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Product Description P/N: BF24-T
Description
The Belimo BF24-T is a 24 VAC/DC spring-return damper actuator designed for reliable operation of fire and smoke dampers in HVAC safety systems. Delivering a minimum motor torque of 18 Nm and equipped with dual SPDT auxiliary switches, it provides dependable damper positioning and automatic return to the safe position during power loss.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC Controls |
| Part Number | BF24-T |
| Subcategory | Damper Actuators |
| Product Type | Spring-Return Fire & Smoke Damper Actuator |
| Nominal Voltage | 24 VAC 50/60 Hz / 24 VDC |
| Voltage Range | AC 19.2–28.8 V / DC 21.6–28.8 V |
| Motor Torque | Minimum 18 Nm |
| Spring-Return Torque | Minimum 12 Nm |
| Power Consumption | 7 W (motoring), 2 W (holding), 10 VA |
| Auxiliary Switches | 2 × SPDT |
| Switch Rating | 1 mA–6 A (3 A), 5 VDC–250 VAC |
| Rotation Angle | Maximum 95° |
| Running Time | 140 s (motor), approximately 16 s (spring return) |
| Protection Rating | IP54 |
| Operating Temperature | -30°C to +50°C |
| Storage Temperature | -40°C to +50°C |
| Humidity | Up to 95% RH, non-condensing |
| Service Life | Minimum 60,000 safe positions |
| Weight | 2.8 kg |
Information About BF24-T
The BF24-T is part of the Belimo BF Series of fire and smoke damper actuators developed for commercial HVAC and building safety systems. It operates on 24 VAC/DC power and incorporates a spring-return mechanism that automatically drives the damper to its safety position when power is removed. The actuator features two integrated SPDT auxiliary switches for status monitoring and control integration while supporting direct mounting on 12 mm damper shafts. Built with an IP54-rated enclosure and maintenance-free construction, it is designed to provide dependable operation in demanding environmental conditions.
Key Features:
- Spring-Return Mechanism: Automatically returns the damper to its safe position during power loss.
- High Torque Output: Delivers a minimum of 18 Nm motor torque and 12 Nm spring-return torque.
- 24 VAC/DC Operation: Compatible with standard low-voltage HVAC control systems.
- Dual Auxiliary Switches: Includes two SPDT switches for position indication and system control.
- Direct Shaft Mounting: Fits 12 mm shafts with a 10 mm adapter included.
- IP54 Protection: Provides protection against dust and water ingress in all mounting positions.
- Long Service Life: Rated for a minimum of 60,000 safe-position operating cycles.
- Maintenance-Free Design: Requires no routine servicing throughout its operational life.
The BF24-T delivers the reliability and precision required for dependable fire and smoke damper actuation in commercial HVAC safety systems.
Description
The Belimo BF24-T is a 24 VAC/DC spring-return damper actuator designed for reliable operation of fire and smoke dampers in HVAC safety systems. Delivering a minimum motor torque of 18 Nm and equipped with dual SPDT auxiliary switches, it provides dependable damper positioning and automatic return to the safe position during power loss.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC Controls |
| Part Number | BF24-T |
| Subcategory | Damper Actuators |
| Product Type | Spring-Return Fire & Smoke Damper Actuator |
| Nominal Voltage | 24 VAC 50/60 Hz / 24 VDC |
| Voltage Range | AC 19.2–28.8 V / DC 21.6–28.8 V |
| Motor Torque | Minimum 18 Nm |
| Spring-Return Torque | Minimum 12 Nm |
| Power Consumption | 7 W (motoring), 2 W (holding), 10 VA |
| Auxiliary Switches | 2 × SPDT |
| Switch Rating | 1 mA–6 A (3 A), 5 VDC–250 VAC |
| Rotation Angle | Maximum 95° |
| Running Time | 140 s (motor), approximately 16 s (spring return) |
| Protection Rating | IP54 |
| Operating Temperature | -30°C to +50°C |
| Storage Temperature | -40°C to +50°C |
| Humidity | Up to 95% RH, non-condensing |
| Service Life | Minimum 60,000 safe positions |
| Weight | 2.8 kg |
Information About BF24-T
The BF24-T is part of the Belimo BF Series of fire and smoke damper actuators developed for commercial HVAC and building safety systems. It operates on 24 VAC/DC power and incorporates a spring-return mechanism that automatically drives the damper to its safety position when power is removed. The actuator features two integrated SPDT auxiliary switches for status monitoring and control integration while supporting direct mounting on 12 mm damper shafts. Built with an IP54-rated enclosure and maintenance-free construction, it is designed to provide dependable operation in demanding environmental conditions.
Key Features:
- Spring-Return Mechanism: Automatically returns the damper to its safe position during power loss.
- High Torque Output: Delivers a minimum of 18 Nm motor torque and 12 Nm spring-return torque.
- 24 VAC/DC Operation: Compatible with standard low-voltage HVAC control systems.
- Dual Auxiliary Switches: Includes two SPDT switches for position indication and system control.
- Direct Shaft Mounting: Fits 12 mm shafts with a 10 mm adapter included.
- IP54 Protection: Provides protection against dust and water ingress in all mounting positions.
- Long Service Life: Rated for a minimum of 60,000 safe-position operating cycles.
- Maintenance-Free Design: Requires no routine servicing throughout its operational life.
The BF24-T delivers the reliability and precision required for dependable fire and smoke damper actuation in commercial HVAC safety systems.
