Belimo PRCA-BAC-S2T250 - rotary actuator for dampers

Belimo PRCA-BAC-S2T250 rotary actuator

Actuator for dampers, designed for modulating, communicative and hybrid control. It can convert signals from two passive or active sensors, or switching contacts, and transmit the signal via BACnet or Modbus.

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.
• Power consumption: 20 W during operation, 6 W in standby position.
• Communication: BACnet MS/TP, Modbus RTU, MP-Bus; conventional control is also available.
• Control range Y: 2...10 V; position feedback signal U: 2...10 V.
• Motor running time: 35 s / 90°; configurable running time: 30...120 s.
• Two auxiliary switches 2x SPDT: 1x 10° / 1x 0...90° (factory setting 85°).
• Manual adjustment using a crank and an integrated mechanical position indicator.
• Internal heater prevents condensation and is switched on and off automatically based on temperature and humidity measurements.
• Parameter configuration via Belimo Assistant 2 using NFC or a wired connection.
• Degree of protection IEC/EN: IP66/67; protection class IEC/EN: I, protective earth (PE).
• Ambient temperature: -30...50°C.

Power supply and auxiliary switches are connected via 2.5 mm² terminals, and control via 1.5 mm² terminals. The device is intended for stationary heating, ventilation and air-conditioning systems.