Belimo Actuator 24VAC/DC 20Nm BACnet/Modbus/MP-Bus IP54 90s F05 SR24A-MOD-5

This Belimo electrical actuator is designed for controlling quarter turn valves. The actuator delivers a torque of 20 Nm and can open/close the valve in 90 seconds. This actuator requires a supply voltage of 24 V AC/DC and has a visual positioning indicator to clearly see the valve position. The actuator supports BACnet MSTP/Modbus RTU/MP-Bus communication protocols and requires product ZTH EU for setting the protocol address and linking the actuator to the system. Furthermore, ZTH EU allows the setting of an analog 0-10V or 2-10V control signal. Actuator mounts to a quarter turn valve with an ISO 5211 F05 flanges. The actuator has a durable plastic housing and has an IP54 protection rating. This actuator can operate within ambient temperatures between -30 and 50 °C (-22 and 122 °F). The actuator comes with a 1-meter power cable.

The actuator is equipped with overload protection, the actuator doesn't need limit switches and will stop automatically when the end stop is reached. Manual override is possible using a push-button, which disengages the gear train as long as the button is pressed or remains locked. The actuator can be directly mounted on the rotary or butterfly valve with a mounting flange. The mounting orientation relative to the valve can be selected in 90° increments. The actuator comes with an inbuilt interface for BACnet MSTP, Modbus RTU, and MP-Bus. It obtains the digital control signal from the control system and provides the present status. The rotation angle can be adjusted with mechanical end stops.

Pros:

• The actuator can be mounted on the valve via the ISO 5211 F05 flange
• Modulating actuator with fieldbus or a 0-10 V/2-10 V signal
• Manual override
• The actuator is overload protected
• Visual position indicator

Cons:

• Product ZTH EU needed (not included) to set protocol address and link the actuator to the system
• The time to open/close of 90 s is slow for some applications