Allen-Bradley 800T-J4A Selector Switch 3 Position

Allen-Bradley 800T-J4A is a 30 mm diameter, three-position selector switch designed for panel mounting in industrial control systems. It is non-illuminated and ships with a white knob insert, belonging to the 800T family of 30 mm selector switches. The switch provides a 1 normally open and 1 normally closed contact arrangement (SPDT), with terminals for straightforward wiring. The left-hand position offers spring-return action toward the center, while the other positions are maintained. It is rated for up to 600 V AC and 10 A maximum, and the enclosure is compatible with Type 4/13 environments (watertight/oiltight). A standard KB7 cam is included for this configuration. Typical applications include manual start/stop control, mode selection, and safety interlock sequences in automation panels and machinery where a momentary left-position action complements maintained right/center positions.