We offer an assembly service for the actuator with the fitting for this product. More information

Emergency Belimo actuator series NF for HVAC dampers or ball valves (e.g. Giacomini R250D with adapter). The actuator is designed for damper sizes up to approximately 2m2. The actuator is controlled by a voltage signal DC 0-10V. Feedback is in the range of 2-10V (difference compared to the "SZ" version actuators).

Function

In the event of a power interruption, the return spring begins to rotate the actuator to its initial position. For example, during a power outage, it closes the damper or ball valve. The same can be achieved in reverse, depending only on the initial position of the damper. The actuator is opened by a 0-10V signal.

• The actuator can be operated manually using the locking button and manual crank. 

Features

• The actuator is protected against overload, no end stops are required.
• Simple mounting on the damper shaft using a universal bracket.
• Adjustable working angle with mechanical stop.
• The actuator includes two auxiliary switching contacts.