What is a Selector Switch?

A selector switch is typically a knob or rotary switch with scale/positions such as ON-OFF, 1-0-2, or other modes.

• Operation: When the switch is rotated, it changes the internal contact connections to control the device.

• Number of positions: It may have 2 positions (2-position) or 3 positions (3-position), and some models may have more than 3 positions.

• Rotation types:

  • Maintained type: Stays in the selected position until manually changed.

  • Spring return type: Returns to the original position automatically when released.