Belimo PRKCA-BAC-S2-T-250 rotary actuator
Rotary actuator with safety function for butterfly valves, configured for D6250W/WL. Designed for use in stationary heating, ventilation and air-conditioning systems. In the event of a power failure, after the set power-fail delay time (PF) has elapsed, it moves to the selected fail-safe position.
Key features and specifications
- Motor torque: 160 Nm (configured for D6250W/WL).
- Rated voltage: AC 24...240 V / DC 24...125 V; frequency 50/60 Hz.
- Communication: BACnet MS/TP, Modbus RTU, MP-Bus; conventional control and hybrid mode are also available.
- Y operating range: 2...10 V; adjustable Y operating range: 0.5...10 V or 4...20 mA; feedback signal U: 2...10 V.
- Motor running time: 35 s / 90°, adjustable 30...120 s; safety function running time: 30 s / 90°.
- Fail-safe position: 0...100%, set using the Belimo Assistant App (factory setting 0%); power-fail delay time (PF): 2s, adjustable 0...10 s.
- Two integrated auxiliary switches: 2x SPDT, one fixed at 10° and one adjustable from 0...90° (factory setting 85°).
- Signal processing from two sensors: passive, active or switching contacts.
- Manual adjustment by crank and integrated mechanical position indicator.
- IEC/EN enclosure protection rating: IP66/67; NEMA/UL protection rating: NEMA 4X.
- Connections: power supply and auxiliary switch terminals 2.5 mm² and control terminals 1.5 mm².
The actuator has an internal heater controlled automatically by an integrated temperature and humidity sensor. NFC configuration requires the Belimo Assistant 2 app.
