Allen-Bradley 800T-H3211A Time Delay Relay Module

The Allen-Bradley 800T-H3211A is a 30 mm diameter selector switch from the 800T family, designed for panel mounting in industrial control applications. It provides a two-position actuation with a single normally open (NO) and a single normally closed (NC) contact, enabling simple on/off control of equipment. The device is maintained (latching) in its chosen position and ships with a standard key, featuring lock-right operation for secure, hands-off positioning. Its finger-safe terminals and standard cam support safe wiring and reliable operation in busy control panels, while the compact 30 mm housing fits into dense control assemblies without sacrificing accessibility. Commonly used to select machine modes, initiate start/stop sequences, or reset functions within a control circuit, the 800T-H3211A combines robust mechanical design with straightforward electrical behavior to deliver predictable control signals in demanding industrial environments.