Belimo SRF24A-SZ-5-O - rotary actuator with spring return

Name: Belimo SRF24A-SZ-5-O - rotary actuator with spring return
Brand: Belimo
SKU: SRF24A-SZ-5-O
Price: 1918.34 PLN
Availability: BackOrder

Belimo

zł1,918.34

VAT included

zł1,559.63 tax excluded

Belimo SRF24A-SZ-5-O rotary actuator for ball valves and butterfly valves, with NO safety function (valve opens when power supply fails). The motor and spring torque is 20 Nm.

AC/DC 24 V supply, 0.5...10 V modulating control and 0.5...10 V position feedback signal. Motor running time: 90 s / 90°; F05 mounting flange.

Delivery in approx. 14 days

Belimo SRF24A-SZ-5-O rotary actuator

Modulating actuator designed for ball valves and butterfly valves. The Y control signal positions the valve and simultaneously tensions the return spring. When the power supply is interrupted, the spring moves the valve to the NO safety position – valve open (A – AB = 100%). For valves with an L-port, the datasheet specifies A – AB = 0%.

Key specifications

Motor torque: 20 Nm; return spring torque: 20 Nm.
Rated voltage: AC/DC 24 V; rated voltage frequency: 50/60 Hz.
Y input operating range: 0.5...10 V; U position feedback signal: 0.5...10 V (max. 0.5 mA).
Motor running time: 90 s / 90°; spring running time: <20 s @ -20...50°C, <60 s @ -30°C.
Power consumption during operation: 5.5 W; at rest: 3 W; sizing power: 8.5 VA.
Power and control connection: 1 m cable, 4x 0.75 mm²; mounting flange: F05.
Protection rating: IP54; NEMA 2; enclosure: UL Enclosure Type 2.
Ambient temperature: -30...50°C.

Manual operation is possible using a crank and locking switch. The rotation angle can be adjusted using mechanical stops; position is indicated mechanically. Mounting on a flanged valve allows the orientation to be selected in 90° increments.