LF24-3 - Belimo Spring-return Damper Actuator 4 Nm, 75 s, 95° AC / DC 24 V, 3 Point
£210.00
£175.00
On request
SKU
LF24-3
Next Supplier Stock Update: 11/03/2025
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Manuals & Datasheets
| DATA-SHEET |
 |
| Product type | Actuator |
| IP rating | IP54 |
| Input Signal | On/Off |
| Manufacturer | Belimo |
| Power Supply | 24Vac/Vdc |
| Torque | 4 Nm |
| Running time | 65 to 80 sec |
| Actuator type | Rotary |
| Fail Safe | Spring Return |
At IACS we provide Free Delivery and Next 1-2 day Delivery for all the Belimo Actuators in stock.
The Belimo LF24-3 is an Actuator used in HVAC applications and air ventilation systems.
The Torque force applied by the LF24-3 is 4 Nm.
The power supply requested for this Rotary Actuator is 24Vac/Vdc.
Find at IACS the ideal Belimo Actuator compatible with your system at the best price.
If you are unsure about size or installation, refer to the Belimo custom datasheet above or message iacs to receive special instructions and a custom quote.
The Belimo LF24-3 is a Spring-return actuator with a torque of 4 Nm, a connection PVC cable of 1 meter.
Features
Running time spring < 20 s / 90°
Control 3 point
Connection PVC cable 1m
Direction of motion motor selectable with switch L / R
Direction of motion emergency control function selectable by mounting L / R
Mode of operation The actuator is activated with a 3-point signal. The actuator moves the damper to the operating position at the same time as tensioning the return spring. The damper is turned back to the emergency position by spring force when the supply voltage is interrupted.
Simple direct mounting on the damper spindle by universal spindle clamp. An antirotation device is supplied to prevent unwanted rotation of the whole unit.
Adjustable angle of rotation Adjustable angle of rotation with mechanical end stops.
High functional reliability The actuator is overload protected, needs no limit switches and halts automatically at the end stop.
Electrical data
Nominal voltage AC/DC 24 V
Nominal voltage frequency 50/60 Hz
Nominal voltage range AC 19.2...28.8 V / DC 21.6...28.8 V
Power consumption in operation 2.5 W
Power consumption in rest position 2.5 W
Power consumption for wire sizing 5 VA
Power consumption for wire sizing note Imax 5.8 A @ 5 ms
Connection supply / control Cable 1 m, 4 x 0.75 mm2
Parallel operation Yes (note the performance data)
Functional data
Torque motor 4 Nm
Torque spring return 4 Nm
Direction of motion motor selectable with switch L / R
Direction of motion emergency control function selectable by mounting L / R
Manual override No
Angle of rotation Max. 95°
Angle of rotation note Adjustable 37...100% with integrated mechanical limitation
Running time motor 150 s / 90°
Running time emergency control position <20 s / 90°
Running time emergency setting position note @ -20...50 °C / <60 s @ -30 °C
Sound power level, motor 30 dB(A)
Mechanical interface Universal spindle clamp 8...16 mm
Position indication Mechanical
Service life Min. 60,000 emergency positions
Safety
Protection class IEC/EN III Safety Extra-Low Voltage (SELV)
Degree of protection IEC/EN IP54
EMC CE according to 2014/30/EU
Low voltage directive CE according to 2014/35/EU
Certification IEC/EN IEC/EN 60730-1 and IEC/EN 60730-2-14
Mode of operation Type 1.B
Rated impulse voltage supply / control 0.8 kV
Control pollution degree 3
Ambient temperature -30...50 °C
Non-operating temperature -40...80 °C
Ambient humidity Max. 95% r.h., non-condensing
Maintenance Maintenance-free
Weight Weight 1.5 kg