Fail-safe actuator Belimo NF 24 A SR-S2. Designed for air dampers, ball valves. Power supply 24V. More information
Delivery to Belgium (days are avarages)
GLS: 3.2 workdays, € 8,99
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Adjustment time | 20 s (em. function), 150 s |
Auxiliary contact | Yes 2x |
Control | 0...10 V |
Emergency functions | Yes |
Flap size | 2 m2 |
Power | 24 VAC, 24 VAC |
Torque | 10 Nm |
Weight | 2.00 kg |
Datasheet download
Download PDFBelimo NF 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 a DC 0-10V voltage signal. The feedback is in the range of 2-10V (difference from the version of the "SZ" actuators).
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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