Electric actuator with return spring for fire (normally-open) dampers, designed for installation on ventilation dampers. It controls air dampers in automatic mode, closing the ventilation duct.
The return spring is actuated in the absence of power supply. The actuator can be operated remotely and manually with flap position locking.
Design of the gearbox mechanism with metal gears only. Compatible with all ACS systems (e.g.
Bolid, Gefest, Rubetek). There is a mechanism of manual control.
Main characteristics of the actuator:
1. Actuator with return spring with locking of the cocking position.
2. Auxiliary switches - 2 single-pole switches with double switching 1 mA...3 A, 5 VDC, 250 V ~
3. Mains power supply - 24 V.
4. Torque - 5 Nm.
5. Response time - motor <70sec.; spring <20sec.
6. No stop-regulator of the ventilation damper position angle.
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