Belimo Open/Close Damper Actuator, 20 Nm, 21.6 to 137.5 V ac, 264 V
- RS Stock No.:
- 834-8284
- Mfr. Part No.:
- SFA
- Manufacturer:
- Belimo
Bulk discount available
Subtotal (1 unit)*
SGD757.43
(exc. GST)
SGD825.60
(inc. GST)
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In Stock
- 5 unit(s) ready to ship from another location
- Plus 10 unit(s) shipping from 19 February 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 - 4 | SGD757.43 |
| 5 + | SGD738.48 |
*price indicative
- RS Stock No.:
- 834-8284
- Mfr. Part No.:
- SFA
- Manufacturer:
- Belimo
Specifications
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Belimo | |
| Product Type | Damper Actuator | |
| Maximum Damper Area | 4m² | |
| Switch Included | Yes | |
| Power Consumption | 7W | |
| Control Type | Open/Close | |
| Supply Voltage | 21.6 to 137.5 V ac, 264 V | |
| Motor Torque | 20Nm | |
| IP Rating | IP54 | |
| Noise Level | 45dBA | |
| Minimum Operating Temperature | -30°C | |
| Angle of Rotation | 95° | |
| Maximum Damper Spindle Size | 25.4mm | |
| Running Time | 75s | |
| Minimum Damper Spindle Size | 10mm | |
| Maximum Operating Temperature | 50°C | |
| Standards/Approvals | UL, CE, IEC, EN, CSA | |
| Series | SF | |
| Select all | ||
|---|---|---|
Brand Belimo | ||
Product Type Damper Actuator | ||
Maximum Damper Area 4m² | ||
Switch Included Yes | ||
Power Consumption 7W | ||
Control Type Open/Close | ||
Supply Voltage 21.6 to 137.5 V ac, 264 V | ||
Motor Torque 20Nm | ||
IP Rating IP54 | ||
Noise Level 45dBA | ||
Minimum Operating Temperature -30°C | ||
Angle of Rotation 95° | ||
Maximum Damper Spindle Size 25.4mm | ||
Running Time 75s | ||
Minimum Damper Spindle Size 10mm | ||
Maximum Operating Temperature 50°C | ||
Standards/Approvals UL, CE, IEC, EN, CSA | ||
Series SF | ||
RoHS Status: Exempt
- COO (Country of Origin):
- CH
Belimo Damper Actuator
The Belimo Sf series damper actuator has an open/close control type. It is a spring return actuators with an emergency function for adjusting air dampers in ventilation and air conditioning systems in buildings. It has an adjustable U-clamp, which accepts round or square shafts. This actuator can be installed with a pre-tensioned spring. This product is controlled with a standard signal of DC 0V to 10V and moves the damper to the operating position. This actuator is overload proof, requires no limit switches. It requires AC supply voltage between 19.2VAC and 264VAC and DC supply voltage between 21.6VDC and 137.5VDC.
It has 2 x SPDT integrated auxiliary switches
Features and Benefits
The direction of rotation reversible
Spindle driver universal spindle clamp
Operating voltage ranges between 2VDC and 10VDC
Running springtime is <20s
PVC connection cable length is 1m
Motor and return torque is 20Nm
Maximum damper area is 4m²
Damper spindle compatibility ranges between 10mm and 25.4mm
Power consumption is 7W
Noise level ≤45 (Motor) dBA, ≤62 (Spring Return) dBA
Rated impulse voltage is 0.8kV
Maintenance-free
Service life min. 60,000 emergency positions
Ambient temperature ranges between -30°C and 50°C
Certifications
IEC/EN 60730-1
UL 60730-1A
UL 60730-2-14
CAN/CSA E60730-1:02
IP54
Related links
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- Open/Close Damper Actuator 24 V ac
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