Allen-Bradley 800T-H3207A Time Delay Relay Module

Allen-Bradley 800T-H3207A Time Delay Relay Module is a Rockwell Automation timing device in the 800T family designed to insert a controlled delay into electrical control circuits. This module functions as a timing relay that, after an input signal is received, holds or switches its output for a user-defined period to support precise sequencing, interlocking, or startup delays in automated systems. The H3207A variant is part of Allen‑Bradley’s modular time-delay family and is commonly paired with compatible 800T timing units to set the delay duration, with timing ranges determined by the specific 800T-U timing unit mounted on or used with the relay system. Typical applications include motor start/stop sequencing, conveyor and material-handling cycles, press or machine cycle timing, and safety-related interlocks where a deliberate delay improves performance or safety margins. When selecting this module, users generally consider compatibility with other 800T components and the particular timing unit in use to achieve the desired delay behavior, since exact timing values are defined by the attached timing unit rather than by the 800T-H3207A body alone. In practice, this combination enables engineers to tailor delay characteristics to a wide range of industrial processes without changing the core relay hardware, supporting reliable, repeatable timing in control panels and automation racks.