Belimo NRF24A-SZ-S2 - rotary actuator with fail-safe spring

Name: Belimo NRF24A-SZ-S2 - rotary actuator with fail-safe spring
Brand: Belimo
SKU: NRF24A-SZ-S2
Price: 1354.05 PLN
Availability: BackOrder

Belimo

zł1,354.05

VAT included

zł1,100.85 tax excluded

Analogue rotary actuator with fail-safe function for ball valves and butterfly valves. Motor torque and fail-safe torque are 10 Nm. AC/DC 24 V supply, operating range Y 0.5...10 V and feedback signal U 0.5...10 V.

In the event of a power failure, the return spring sets the valve to the closed position. The actuator has 2 built-in SPDT auxiliary switches and an IP54-rated enclosure.

Delivery in approx. 14 days

Belimo NRF24A-SZ-S2 – analogue rotary actuator

The fail-safe actuator is designed for ball valves and butterfly valves. During operation, it moves the valve to its operating position and tensions the return spring. Following a power interruption, the spring moves the valve to its safe position: normally closed.

Key features and specifications

Motor torque: 10 Nm; fail-safe torque: 10 Nm.
Rated voltage: AC/DC 24 V; rated voltage frequency: 50/60 Hz.
Operating range Y: 0.5...10 V; feedback signal U: 0.5...10 V.
Motor running time: 90 s / 90°; fail-safe running time: <20 s @ -20...50°C, <60 s @ -30°C.
Auxiliary switches: 2x SPDT, 1x 10% / 1x 11...100%.
Power consumption during operation: 2.9 W; in standby: 1.1 W; rated power: 4.7 VA.
Power / control connection: Cable 1 m, 4x 0.75 mm²; auxiliary switch connection: Cable 1 m, 6x 0.75 mm².
Manual adjustment using a crank and lock switch; rotation angle adjustable with mechanical stops.
Enclosure protection rating IEC/EN: IP54; NEMA/UL protection rating: NEMA 2.
Ambient temperature: -30...50°C [-22...122°F].

The device is intended for use in stationary heating, ventilation and air-conditioning systems. The power supply must be provided through a safety transformer.