FAQ

|Auto Switches

What is the connection method for SMC auto switches?

For DC power supply, connect so that the brown wire is on the positive side and the blue wire is on the negative side.
If the power is turned ON without a load connected to the auto switch, an overcurrent will flow and the auto switch will be instantly damaged.
For specific wiring methods, connection examples, and contact protection boxes for auto switches, refer to the “Prior to Use” section in the catalog, which can be found here.