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

Belimo Damper Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return - Fail-Safe Actuators with Spring Return
BelimoFail-Safe Actuators with Spring Return

Belimo Damper Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return

The BELIMO LF24-MFT-S-20 is a fail-safe damper actuator with spring return, featuring Multi-Functional Technology (MFT). It operates on 24V AC/DC with a 6VA power rating, provides a 0 to 95° stroke with CW/CCW shaft…

SKU 3G-OTH-67418

Also listed as: LF24MFTS20 · LF24 MFT S 20

Brand
Belimo
Item
Damper Actuator: Dampers, Multi-Functional Technology
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-MFT-S-20
Type
Multi-Functional Technology (MFT), Spring Return, 35 in-lb
AC/DC
24V
Shaft Type
3/8" to 1/2"
Power Rating
6VA
Input Voltage
24V AC/DC
Output Signal
1 Auxiliary Switch
Plenum Rating
Plenum Rated
Stroke Degree
0 to 95°
Shaft Rotation
CW/CCW
Auxiliary Switch Included
Yes
Electrical Connection Type
Hardwired

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-MFT-S-20 is a fail-safe damper actuator with spring return, featuring Multi-Functional Technology (MFT). It operates on 24V AC/DC with a 6VA power rating, provides a 0 to 95° stroke with CW/CCW shaft rotation for 3/8" to 1/2" shafts, and includes one auxiliary switch. This plenum-rated actuator is hardwired with a 35 in-lb torque output.

Frequently Asked Questions

What is the BELIMO LF24-MFT-S-20 damper actuator used for?

The BELIMO LF24-MFT-S-20 is a fail-safe spring return actuator used in HVAC systems to control air dampers in plenum-rated environments. It provides 35 in-lb torque for modulating or two-position damper applications, ensuring reliable closure on power loss.

What are the specifications of the BELIMO LF24-MFT-S-20?

The BELIMO LF24-MFT-S-20 operates on 24V AC/DC with a 6VA power rating, delivers 35 in-lb torque, and provides a 0 to 95° stroke with CW/CCW rotation. It accepts 3/8" to 1/2" shafts, includes one auxiliary switch, and is plenum rated with hardwired electrical connection.

Where to buy the BELIMO LF24-MFT-S-20 worldwide?

3G Electric supplies the BELIMO LF24-MFT-S-20 worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this fail-safe damper actuator.

How to install the BELIMO LF24-MFT-S-20 spring return actuator?

Mount the BELIMO LF24-MFT-S-20 directly onto the damper shaft using the supplied clamp, ensuring the shaft fits within 3/8" to 1/2". Connect 24V AC/DC power per wiring diagram, verify CW/CCW rotation, and test spring return function 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
Damper Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return, 90 in-lb, 24V AC/DC (MPN NFB24-MFT)
Belimo
Damper Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return, 90 in-lb, 24V AC/DC (MPN NFB24-MFT)
Belimo
Belimo
Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return, 370 in-lb, 24V AC/DC (MPN EFB24-MFT)
Damper Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return, 22 in-lb, 24V AC/DC (MPN TFB24-MFT)
Belimo
Damper Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return, 22 in-lb, 24V AC/DC (MPN TFB24-MFT)
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), Non-Spring Return, 360 in-lb, 24V AC/DC (MPN GKB24-MFT)
Belimo
Damper Actuator: Dampers, Multi-Functional Technology (MFT), Non-Spring Return, 360 in-lb, 24V AC/DC (MPN GKB24-MFT)
Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return, 180 in-lb, 24V AC/DC, Hardwired (MPN AFB24-MFT)
Belimo
Actuator: Dampers, Multi-Functional Technology (MFT), Spring Return, 180 in-lb, 24V AC/DC, Hardwired (MPN AFB24-MFT)

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)