Belimo TRF24-2-O - rotary actuator for ball valves
Rotary actuator for ball valves with a safety function provided by a return spring. Torque 2.5 Nm, AC 24 V supply and 3-point control. In the event of a power failure, it sets the valve to the open position (NO).
Motor running time is 90 s / 90°, and the return time to the safety position is <25 s / 90°. Degree of protection: IP42.
Belimo TRF24-2-O – rotary actuator for ball valves
The actuator moves the valve to its operating position while tensioning the return spring. When the power supply is interrupted, the spring moves the valve to the safety position: open (NO).
Key features and technical data
- Motor and return spring torque: 2.5 Nm.
- Rated voltage: AC 24 V; frequency: 50/60 Hz; voltage range: AC 19.2...28.8 V.
- Control: 3-point.
- Motor running time: 90 s / 90°; return time to the safety position: <25 s / 90°.
- Power consumption during operation: 1.3 W; at rest: 0.6 W; for wire sizing: 2.6 VA.
- Power and control connection: 1 m cable, 4x 0.75 mm².
- Mechanical position indicator and rotation angle limiter.
- Degree of protection IEC/EN: IP42; protection class IEC/EN: III, Safety Extra-Low Voltage (SELV).
Direct mounting on the ball valve is carried out using one screw; the actuator orientation relative to the valve can be selected in 90° increments. The actuator is protected against overload and stops automatically when the end stop is reached.
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Brand
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ReferenceTRF24-2-O
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EAN137630498115851
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AC/DC voltageAC 24 V
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Power consumption (running)1.3 W
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Power consumption (holding)0.6 W
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Rated power2.6 VA
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Power supply control connectionCable 1 m, 4x 0.75 mm²
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Control type3-point
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Protection ratingIP42
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