Dampers up to approx. 0.8 m2, with open/close actuator (AC 230 V), controlled by single-pole contact.
The application is for the operation of air dampers that perform safety functions (e.g. frost and smoke protection, hygiene, etc). The mode of operation for the LF… actuator moves the damper to its normal working position while tensioning the return spring at the same time. If the power supply is interrupted, the energy stored in the spring moves the damper back to its safe position.