Belimo SRF24A-5-O - rotary actuator with spring return
Rotary actuator for ball valves and butterfly valves, with a safety function provided by a spring return. Torque 20 Nm, AC/DC 24 V supply and Close/Open control. In the event of a power failure, it sets the valve to the open position (NO).
Motor running time is 75 s / 90°. The actuator has an F05 connection flange and IP54 protection rating.
Belimo SRF24A-5-O
Rotary actuator with a safety function for ball valves and butterfly valves. During operation, the actuator positions the valve and tensions the return spring. If the power supply is interrupted, the spring moves the valve to the safety position: open (NO).
Key features and specifications
- Motor and return spring torque: 20 Nm.
- Rated voltage: AC/DC 24 V; frequency: 50/60 Hz.
- Voltage range: AC 19.2...28.8 V / DC 21.6...28.8 V.
- Control: Close/Open.
- Motor running time: 75 s / 90°; travel time to the safety position: <20 s @ -20...50°C, <60 s @ -30°C.
- Power consumption during operation: 5.5 W; at rest: 1.5 W; for wire sizing: 7.5 VA.
- Power and control cable: 1 m, 2x 0.75 mm².
- Connection flange: F05; mechanical position indicator and adjustable rotation angle limit stops.
- Manual operation using a crank and locking switch.
- Protection rating: IP54; NEMA 2; UL Enclosure Type 2 housing.
- Ambient temperature: -30...50°C.
For valves with an L-port, the safety position direction is specified as A–AB = 0%; for the other described valve-open case: A–AB = 100%.
-
Brand
-
ReferenceSRF24A-5-O
-
EAN137630498115066
-
AC/DC voltageAC/DC 24 V
-
Power consumption (running)5.5 W
-
Power consumption (holding)1.5 W
-
Rated power7.5 VA
-
Power supply control connectionCable 1 m, 2x 0.75 mm²
-
Control typeClose/Open
-
Protection ratingIP54
-
NEMA protection ratingNEMA 2
-
Enclosure typeUL Enclosure Type 2
Over 20 years of experience
Reliable service and customer trust
Help with selecting and operating equipment
Comments (0)
Your review appreciation cannot be sent
Report comment
Report sent
Your report cannot be sent