Belimo SR24A-MOD - rotary actuator for ball valves

Belimo SR24A-MOD rotary actuator

Communicating actuator for ball valves, designed for stationary heating, ventilation and air conditioning systems. Enables modulating, communicating and hybrid control, as well as conversion of sensor signals.

Key features and specifications

• Torque: 20 Nm; rated voltage: AC/DC 24 V; frequency: 50/60 Hz.
• Communication: BACnet MS/TP, Modbus RTU (factory setting), MP-Bus.
• Operating range Y: 2...10 V; adjustable operating range Y: 0.5...10 V; position feedback signal U: 2...10 V.
• Operating time: 90 s / 90°; adjustable operating time: 90...350 s.
• Power consumption during operation: 3.5 W; at rest: 1.25 W; dimensioning power: 6 VA.
• Power and control connection: 1 m cable, 6x 0.75 mm².
• Manual adjustment by push-button, with the option to lock; mechanical rotation angle stops and position indicator.
• Degree of protection IEC/EN: IP54; protection class IEC/EN: III, Safety Extra-Low Voltage (SELV).

The actuator can convert a connected passive or active sensor signal, or a changeover contact signal, into a signal transmitted via BACnet, Modbus or MP-Bus. With analogue BACnet or Modbus control, it can be used to transmit position via communication.