Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Image not available
BelimoFail-Safe Actuators with Spring Return

Belimo Actuator: Dampers, On/Off, Spring Return, 35 in-lb, 24V AC/DC

The BELIMO LF24 US is a fail-safe spring-return damper actuator with on/off control, delivering 35 in-lb of torque. It operates on 24V AC/DC with a 5W power rating, features a 95° stroke with CW/CCW shaft rotation…

SKU 3G-OTH-68662

Also listed as: LF24US · LF24-US

Brand
Belimo
Item
Actuator: Dampers, On/Off, Spring Return, 35 in-lb, 24V AC/DC
Category
Fail-Safe Actuators with Spring Return
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Belimo
Manufacturer Part Number
LF24 US
Type
On/Off, Spring Return, 35 in-lb, Hardwired Plenum Rated Cables
AC/DC
24V
Power Rating
5W
Input Voltage
24V AC/DC
Plenum Rating
Plenum Rated
Stroke Degree
95°
Shaft Rotation
CW/CCW
Auxiliary Switch Included
No
Electrical Connection Type
Hardwired
Compatible Building Automation Protocols
Modbus
For Use With Building Automation Systems
Building Automation System Compatible

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

Belimo Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BELIMO LF24 US is a fail-safe spring-return damper actuator with on/off control, delivering 35 in-lb of torque. It operates on 24V AC/DC with a 5W power rating, features a 95° stroke with CW/CCW shaft rotation, and is plenum rated with hardwired cables. This actuator is compatible with Modbus building automation protocols for integration into building automation systems.

Frequently Asked Questions

What is the BELIMO LF24 US actuator used for?

The BELIMO LF24 US is a fail-safe spring-return damper actuator used in HVAC building automation systems. It controls air dampers in plenum-rated spaces, providing on/off operation with 35 in-lb torque on 24V AC/DC power.

What are the specifications of the BELIMO LF24 US?

The BELIMO LF24 US operates on 24V AC/DC with 5W power, delivers 35 in-lb torque, and has a 95° stroke with CW/CCW shaft rotation. It is plenum rated with hardwired cables and supports Modbus building automation protocols.

Where to buy the BELIMO LF24 US worldwide?

3G Electric supplies the BELIMO LF24 US actuator worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the BELIMO LF24 US spring-return actuator?

Mount the BELIMO LF24 US directly onto the damper shaft using the included hardware. Connect 24V AC/DC power via the hardwired plenum-rated cables. Ensure the spring-return direction (CW/CCW) matches damper fail-safe requirements. Test stroke before commissioning.

Belimo Products

3G Electric supplies Belimo fail-safe actuators with spring return. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Belimo
Belimo
Actuator: Dampers, On/Off, Spring Return, 90 in-lb, 24V AC/DC, Hardwired Plenum Rated Cables (MPN NFB24)
Actuator: Dampers, On/Off, Spring Return, 35 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN LF24)
Belimo
Actuator: Dampers, On/Off, Spring Return, 35 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN LF24)
Actuator: Dampers, On/Off, Spring Return, 35 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN LF24-S)
Belimo
Actuator: Dampers, On/Off, Spring Return, 35 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN LF24-S)
Damper Actuator: Dampers, Proportional, Spring Return, 35 in-lb, 24V AC/DC, NEMA 2 / IP54 (MPN LF24-SR-E)
Belimo
Damper Actuator: Dampers, Proportional, Spring Return, 35 in-lb, 24V AC/DC, NEMA 2 / IP54 (MPN LF24-SR-E)
Damper Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return, 35 in-lb, 24V AC/DC (MPN LF24-MFT-S-20)
Belimo
Damper Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return, 35 in-lb, 24V AC/DC (MPN LF24-MFT-S-20)
Actuator: Dampers, Proportional, Spring Return, 35 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN LF24-SR)
Belimo
Actuator: Dampers, Proportional, Spring Return, 35 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN LF24-SR)

More from Belimo

View all Belimo parts
Actuator: Dampers, Floating Point/On/Off, Spring Return, 35 in-lb, 24V AC/DC, Hardwired (MPN LF24-3)
Belimo
Actuator: Dampers, Floating Point/On/Off, Spring Return, 35 in-lb, 24V AC/DC, Hardwired (MPN LF24-3)
Belimo
Belimo
Actuator: Dampers, Proportional, Spring Return, 35 in-lb, 24V AC/DC, Hardwired Plenum Rated Cables (MPN LF24-SR US)
Actuator: Dampers, On/Off, Spring Return, 180 in-lb, 24 to 125V DC/24 to 240V AC, Hardwired (MPN AFBUP)
Belimo
Actuator: Dampers, On/Off, Spring Return, 180 in-lb, 24 to 125V DC/24 to 240V AC, Hardwired (MPN AFBUP)
Actuator: Dampers, Floating Point, Spring Return, 35 in-lb, 24V AC/DC, Hardwired Plenum Rated Cables (MPN LFX24-SR)
Belimo
Actuator: Dampers, Floating Point, Spring Return, 35 in-lb, 24V AC/DC, Hardwired Plenum Rated Cables (MPN LFX24-SR)
Damper Actuator: Dampers, Proportional, Spring Return, 22 in-lb, 24V AC/DC, NEMA 2 / IP54 (MPN TFB24-SR)
Belimo
Damper Actuator: Dampers, Proportional, Spring Return, 22 in-lb, 24V AC/DC, NEMA 2 / IP54 (MPN TFB24-SR)
Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return, 35 in-lb, 24V AC/DC, Hardwired (MPN LF24-MFT)
Belimo
Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return, 35 in-lb, 24V AC/DC, Hardwired (MPN LF24-MFT)
Actuator: Dampers, On/Off, Spring Return, 180 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN AFB24-S)
Belimo
Actuator: Dampers, On/Off, Spring Return, 180 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN AFB24-S)
Damper Actuator: Dampers, Proportional, Spring Return, 180 in-lb, 24V AC/DC, NEMA 2 / IP54 (MPN AFB24-SR-S)
Belimo
Damper Actuator: Dampers, Proportional, Spring Return, 180 in-lb, 24V AC/DC, NEMA 2 / IP54 (MPN AFB24-SR-S)