Belimo PRCA-BAC-S2-T-250 - rotary actuator for butterfly valves
Rotary actuator for butterfly valves with a torque of 160 Nm, configured for D6250W/WL. Rated voltage AC 24...240 V / DC 24...125 V; running time 35 s / 90°.
Supports BACnet MS/TP, Modbus RTU and MP-Bus, as well as analogue control. It has two built-in auxiliary switches 2x SPDT and an enclosure with protection rating IP66/67.
Belimo PRCA-BAC-S2-T-250 rotary actuator
Actuator for butterfly valves with a torque of 160 Nm, configured for D6250W/WL. It enables communication via BACnet MS/TP, Modbus RTU and MP-Bus, as well as conventional control. In hybrid mode, the analogue signal can be used for control, while BACnet or Modbus provides position feedback.
Key features and parameters
- Rated voltage: AC 24...240 V / DC 24...125 V; frequency 50/60 Hz.
- Motor torque: 160 Nm (configured for D6250W/WL).
- Motor running time: 35 s / 90°; adjustable running time: 30...120 s.
- Operating range Y: 2...10 V; adjustable operating range Y: 0.5...10 V or 4...20 mA; feedback signal U: 2...10 V.
- Two built-in auxiliary switches 2x SPDT: one fixed at 10° and one adjustable from 0...90° (factory setting 85°).
- Enclosure protection rating: IP66/67; NEMA/UL degree of protection: NEMA 4X.
- Power consumption: 20 W during operation and 6 W at rest.
- Terminal connections: power supply and auxiliary switches, terminals 2.5 mm²; control, terminals 1.5 mm².
- Two sensors can be connected: passive, active or switching contacts. The built-in heater is controlled automatically based on temperature and humidity measurements.
- Manual adjustment by crank; mechanical, integrated position indicator. Parameters can be modified via NFC or by wire using the Belimo Assistant 2 app.
The device is intended for stationary heating, ventilation and air-conditioning systems. According to the data sheet, it is particularly suitable for outdoor applications.
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Brand
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ReferencePRCA-BAC-S2-T-250
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AC/DC voltageAC 24...240 V / DC 24...125 V
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Auxiliary switch connectionTerminals 2.5 mm²
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Power consumption (running)20 W
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Power consumption (holding)6 W
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Rated powerat 24 V 20 VA / at 240 V 52 VA
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Control typeBACnet MS/TP Modbus RTU MP-Bus DC 2...10 V DC 0.5...10 V 4...20 mA Close/Open 3-point Hybrid (communicating/analogue)
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Protection ratingIP66/67
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NEMA protection ratingNEMA 4X
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Enclosure typeUL Enclosure Type 4X
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Power connectionTerminals 2.5 mm²
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Auxiliary contacts2x SPDT
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Control connectionTerminals 1.5 mm²
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