Belimo NRF24A-SZ-O - rotary actuator with spring return for ball valves

Name: Belimo NRF24A-SZ-O - rotary actuator with spring return for ball valves
Brand: Belimo
SKU: NRF24A-SZ-O
Price: 1236.25 PLN
Availability: BackOrder

Belimo

zł1,236.25

VAT included

zł1,005.08 tax excluded

Modulating rotary actuator for ball valves with NO safety function. Torque 10 Nm, AC/DC 24 V supply, 0.5...10 V control signal and 0.5...10 V position feedback signal.

When the power supply fails, the spring moves the valve to the open position. Motor running time is 90 s / 90°, and the degree of protection is IP54.

Delivery in approx. 14 days

Belimo NRF24A-SZ-O rotary actuator

Modulating actuator with spring return for ball valves. During operation, the actuator positions the valve according to the Y signal and tensions the spring. When the power supply is interrupted, the spring moves the valve to the safety position: NO, valve open (A – AB = 100%). For valves with an L-port, the documentation specifies A – AB = 0%.

Key features and specifications

Motor and spring return torque: 10 Nm.
Rated voltage: AC/DC 24 V; voltage range: AC 19.2...28.8 V / DC 21.6...28.8 V.
Y control range: 0.5...10 V; U position feedback signal: 0.5...10 V.
Motor running time: 90 s / 90°; spring return time: <20 s @ -20...50°C, <60 s @ -30°C.
Power consumption: 3.5 W while running and 2.5 W in the resting position; sizing power: 6 VA.
Power and control connection: 1 m cable, 4x 0.75 mm².
Manual override using a crank and locking switch; adjustable rotation angle with mechanical stops.
Degree of protection: IP54; ambient temperature: -30...50°C.