Square D 800T-H3305B Cylinder Lock Keyed Selector Switch

The Allen-Bradley 800T-H3305B is a 30.5 mm cylinder-lock, two-position selector switch with maintained action and lock-Both capability for industrial control panels. It uses a standard D335 key in its cylinder lock and provides a 2 normally open and 2 normally closed contact arrangement, enabling two circuits to be controlled from a single switch. This keyed selector is designed for panel mounting in 30 mm stations and allows the actuator to be locked in either position, preventing unauthorized or accidental changes during operation. Typical applications include start/stop sequencing, mode selection, and other control scenarios where secure, single-handed operation is required.