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SKU
SFA
SFA - Belimo Spring-return Damper Actuator 20 Nm, < 75 s, 95°
£323.40
£269.50
On request
Next Supplier Stock Update: 18/04/2026
Manuals & Datasheets
| DATA-SHEET |
 |
| Product type | Actuator |
| IP rating | IP54 |
| Input Signal | On/Off |
| Manufacturer | Belimo |
| Torque | 20 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 SFA is an Actuator used in HVAC applications and air ventilation systems.
The Torque force applied by the SFA is 20 Nm.
The power supply requested for this Rotary Actuator is AC 24...240 V /DC 24...125 V.
IACS has the best prices on the right Belimo Actuators for your system.
Consult the Belimo custom datasheet above or contact iacs via email for personalised assistance if you have queries about size or installation.
The Belimo SFA is a Spring-Return Actuator with a Torque of 20 Nm, the Nominal voltage is AC 24-240 V, 50/60 Hz / DC 24-125 V.
The Angle of rotation is Max. 95°, can be limited with an adjustable mechanical end stop.
Features
• AC 24...240 V / DC 24...125 V, Open/Close
• IP 66 NEMA4, Manual override with integrated position stop
• Running time spring < 20 s
• Connection cable FRNC 1 m
• Spindle driver universal spindle clamp
• Direction of rotation reversible (right/left)
• Angle of rotation limit. mech. adjustable
Mode of operation The actuator is equipped with a universal power module and can process supply voltages from AC 24 ... 240 V plus DC 24 ... 125 V.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 if the supply voltage is interrupted.
Simple direct mounting Simple direct mounting on the damper spindle with a universal spindle clamp, supplied with an anti-rotation strap to prevent the actuator from rotating.
Manual override Manual operation of the damper with the hand crank, locking in any position with the interlocking switch. Unlocking is manual or automatic by applying the operating voltage.
Adjustable angle of rotation Adjustable angle of rotation with mechanical end stop.
High operational reliability The actuator is overload-proof, requires no limit switches and automatically stops when the end stop is reached.
• Electrical data Nominal voltage AC 24 ... 240 V, 50/60 Hz / DC 24 ... 125 V
• Nominal voltage range AC 19,2 ... 264 V / DC 21,6 ... 137,5 V
• Power consumption In operation 7 W @ nominal torque At rest 3.5 W For wire sizing 18 VA
• Connection Cable 1 m, 2 x 0.75 mm2
• Functional data Torque Motor Min. 20 Nm @ nominal voltage Spring return Min. 20 Nm
• Direction of rotation Can be selected by mounting L / R
• Manual override With hand crank and interlocking switch
• Angle of rotation Max. 95°<), can be limited with adjustable mechanical end stop
• Running time Motor ≤150 s / 90°<) Spring return ≤20 s @ –20 ... 50°C / max. 60 s @ –30°C
• Sound power level Motor ≤45 dB (A) Spring return ≤62 dB (A)
• Service life Min. 60,000 emergency positions
• Position indication Mechanica
• Safety Protection class II Totally insulated
• Protection mode IP54 NEMA2, UL Enclosure Type 2
• EMC CE according to 2004/108/EC Low-voltage directive CE according to 2006/95/EC
• Certification Certified to IEC/EN 60730-1 and IEC/EN 60730-2-14cULus according to UL 60730-1 and UL 60730-2-14and CAN/CSA E60730-1:02
• Mode of operation Type 1.AA
• Control pollution degree 4
• Ambient temperature –30 ... +50°C
• Non-operating temperature –40 ... +80°C
• Ambient humidity 95% r.h., non-condensating
• Maintenance Maintenance-free
• Dimensions / Weight Dimensions See «Dimensions» on page 3
• Weight Approx. 2.2 kg
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