The Allen-Bradley 700-HT12BU120 is a general-purpose tube-base timing relay with an on-delay function and a timing range of 1.0 to 100 seconds. It uses an 8-pin tube-base package and provides DPDT (two Form C) contacts. The coil is rated for 120 V AC (often specified as 120 V AC/DC in catalogs), enabling operation from standard control power. After the coil energizes, the DPDT contacts switch state once the set delay elapses, making it suitable for timed control in industrial circuits, such as sequencing and delayed load activation.
