Belimo NRF24A - rotary actuator for ball valves

Name: Belimo NRF24A - rotary actuator for ball valves
Brand: Belimo
SKU: NRF24A
Price: 1161.51 PLN
Availability: BackOrder

Belimo

zł1,161.51

VAT included

zł944.32 tax excluded

Rotary actuator for ball valves with spring-return fail-safe function. Close/Open control, 10 Nm torque, AC/DC 24 V supply and motor running time of 75 s / 90°.

When the power supply fails, the spring moves the valve to the closed position (NC). IP54 protection rating.

Delivery in approx. 14 days

Belimo NRF24A – actuator for ball valves

NRF24A is a rotary actuator with a spring-return fail-safe function. During operation, it moves the valve and tensions the spring; when the power supply is interrupted, the spring moves the valve to the fail-safe position.

Key features and specifications

Motor torque: 10 Nm; fail-safe torque: 10 Nm.
Power supply: AC/DC 24 V, 50/60 Hz; voltage range: AC 19.2...28.8 V / DC 21.6...28.8 V.
Control: Close/Open.
Position after power failure: NC, valve closed (A – AB = 0%); for valves with an L-port: A – AB = 100%.
Motor running time: 75 s / 90°. Fail-safe operating time: <20 s @ -20...50°C, <60 s @ -30°C.
Power consumption during operation: 6 W; at rest: 2.5 W; sizing power: 8.5 VA.
Power and control connection: 1 m cable, 2x 0.75 mm².
Mechanical position indicator and adjustable rotation angle with mechanical stops.
Manual operation by crank with locking switch.
Protection rating: IP54; NEMA 2; UL Enclosure Type 2 housing.
Ambient temperature: -30...50°C.

The actuator is mounted directly on the ball valve using one screw. The mounting position relative to the valve can be selected in 90° increments.