Allen-Bradley 700-HT12BU120 Time Delay Relay

The Allen-Bradley 700-HT12BU120 Time Delay Relay is a general-purpose, on-delay timer designed for plug-in installation in control panels, part of Rockwell Automation’s 700 series of timing relays; it provides precise timed sequencing between input energization and output activation, enabling safer and more predictable machine operations in a wide range of industrial applications. This model uses an eight-pin tube-base footprint and DPDT (two-pole, two-throw) contacts, with a control coil rated for 120 V AC or DC, allowing it to operate from standard 120 V control circuits; the compact form factor makes it easy to retrofit into existing panels where space is at a premium. The timing window is adjustable from 1.0 to 100 seconds, and once the input coil is energized the output toggles after the selected delay, supporting tasks such as motor start sequencing, interlocks, warning annunciators, or other time-delayed control actions in automation systems.