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Fail-safe actuator Belimo SF 24 A-SR. Designed for air dampers, ball valves. Power supply 24V. More information
GLS delivery 3-4 working days. DHL express delivery 1-2 working days.
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Adjustment time | 20 s (em. function), 150 s |
Auxiliary contact | No |
Control | 0...10 V |
Emergency functions | Yes |
Flap size | 4 m2 |
Power | 24 VAC, 24 VAC |
Torque | 20 Nm |
Weight | 1.70 kg |
Datasheet download
Download PDFBelimo SF actuator with fail-safe for ball valves (eg. Giacomini R250D with adapter ). The actuator is designed for damper size up to approx. 4m2. The actuator control is a DC 0-10V voltage signal.
In the event of a power failure, the return spring begins to rotate the actuator to the starting position. Eg. closes the damper or ball valve in the event of a power failure. The same can be done upside down, depending only on the initial position of the valve. Opening of the actuator is provided by a 0-10V signal.
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