Skip to content

HomeProduct ManualsElectrical Connections

SA302 24V DC 3 Wire

SA302 is a three-wire, 24V DC connection for motorized valve actuators. Prepare a 24V DC, 1.5A power supply for the connection described below.

Wiring Diagram

SA302 24V DC three-wire circuit: red to positive, black to negative and green switched to positive — SA302 — 24V DC, three-wire connection.

Wire Connections

Disconnect power before making or changing connections.

Connect 24V DC positive (+) to the red wire.
Connect 24V DC negative (−) to the black wire.
Keep the red and black wires permanently connected to the 24V DC supply during normal operation.
Connect the green wire to 24V DC positive (+) whenever the valve needs to be open.
The green-wire supply can be switched through a PLC, relay or float switch. Keep the green wire connected to positive 24V DC for as long as the valve needs to remain open.

Power Failure and Consumption

This actuator is a stay-put type on power failure. Keep the red and black wires connected to the positive and negative supply terminals during normal operation.

The supplied guide states that consumption is zero when the valve is closed and approximately 20mA when open. The main operating power is consumed while the valve is moving.