Emergency actuator Belimo SFA-S2. Designed for HVAC dampers and ball valves. Power supply 24...240V. Torque 20 Nm, suitable for dampers up to approximately 4 m², with two integrated auxiliary switch contacts. More information
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| Auxiliary contact | Yes 2x |
| Control | 2-point |
| Damper size | 4 m² |
| Emergency function | Yes |
| Power Supply | 24 VDC, 24 VAC, 230 VAC |
| Setup time | 75 s |
| Torque | 20 Nm |
| Weight | 2.00 kg |
Datasheet (english) download
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We offer an assembly service for the actuator with fittings for this product. More informationEmergency actuator Belimo series SFA-S2 for HVAC dampers or ball valves (e.g., Giacomini R250D with adapter). The actuator is designed for damper sizes up to approx. 4m2. The actuator control is open/close. The actuator includes two auxiliary switching contacts.
In the event of a power interruption, the return spring begins to rotate the actuator to its default position. For example, in case of a power failure, it closes the damper or ball valve. The same can be achieved in reverse, depending only on the initial position of the damper.

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