Allen-Bradley 800H-JR91KC1B 30MM Selector Switch

Allen-Bradley 800H-JR91KC1B is a 30 mm diameter selector switch from the 800H family designed for industrial control applications where a three‑position operator is required. It employs a KC1 cam and a standard white knob with a spring-return action, delivering a center-off feel when the handle is released. The switch supports configurable contact blocks in common arrangements, including 1 normally open and 1 normally closed (1 NO 1 NC) or 2 normally open and 2 normally closed (2 NO 2 NC) standard contacts, with no blocking in this position and terminals without guards. This makes it suitable for applications such as mode selection or simple start/stop control in automation panels, where a compact 30 mm footprint and straightforward wiring are advantageous. Note that Rockwell Automation has announced the 30 mm 800H selector switches, including this JR91KC1B variant, were discontinued as of March 31, 2025, so availability from distributors may be limited and customers may need to consider current replacement options within Rockwell’s 800H/800HC lines or alternative 30 mm selector solutions.