Belimo LF24-SR-S Spring Return Fail-Safe Proportional Damper Control Actuator 24 VAC/DC

Product Description

The Belimo LF24-SR-S actuator is engineered for reliable proportional control of dampers in HVAC systems. Designed with a 35 lb-in torque, it ensures efficient operation with a supply voltage of 24 VAC/DC. This model features a spring return fail-safe mechanism, making it suitable for critical applications where fail-safe functionality is essential.

• Direct coupling minimizes installation time, easily mounts on a half-inch shaft with options for a three-quarter inch clamp.
• Features a built-in auxiliary switch for additional control and feedback functionalities.
• Equipped with a brushless DC motor for extended reliability and performance.

Product Highlights

This actuator provides true spring return functionality, offering consistent torque and reliable performance both with and without power. Its compact design and rugged construction are ideal for harsh environments.

Product Information

Standard Information

• Brand: Belimo
• MPN: LF24-SR-S
• Product Type: HVAC Actuator

Technical Specifications

• Torque: 35 lb-in
• Voltage: 24 VAC/DC
• Operation: Proportional control
• Fail-safe Mode: Spring return
• Ambient Temperature Range: -22°F to +122°F
• Control Input: 2 to 10 VDC, 4 to 20 mA
• Running Time: 150 seconds (motor), <25 seconds at typical temperature (spring), <60 seconds at low temperatures (spring)