Fail-safe actuator Belimo NFA-S2. Designed for air dampers, ball valves. Power supply 24 ... 240V. Torque 10 Nm, damper sizes up to approx. 2 m², two integrated auxiliary changeover contacts. More information
Delivery to Belgium (days are avarages)
GLS: 3.2 workdays, € 8,99
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Adjustment time | 75 s |
Auxiliary contact | Yes 2x |
Control | 2-point |
Emergency functions | Yes |
Flap size | 2 m2 |
Power | 24 VDC, 24 VAC, 230 VAC |
Torque | 10 Nm |
Weight | 1.80 kg |
DATASHEET (english) download
Download PDF10Nm, 230V, 2 or 3 position control, run time 150s, IP 54
Belimo NFA-S2 actuator with fail-safe for ball valves (eg. Giacomini R250D with adapter ). The actuator is designed for damper size up to approx. 2m2. The drive control is open/closed. The drive includes two auxiliary changeover contacts.
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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