Allen-Bradley 700-HT12CU120 Relay

The Allen-Bradley 700-HT12CU120 is a general-purpose tube-base timing relay (on-delay) from the 700-HT family, designed to insert a controlled delay before a load is energized in industrial control circuits. It provides DPDT (two Form-C) contacts and a 120 V AC/DC coil, allowing two independent circuits to be switched by a single timer coil. The timer offers an adjustable on-delay range from 0.1 to 10 minutes, making it suitable for sequencing starts, interlocks, and other timed control tasks in automation systems. Its tube-base construction supports plug-in installation into compatible sockets for straightforward field replacement and maintenance in control panels. Typical applications include start/stop sequencing for conveyors and machining cycles, as well as safety interlocks where a precise delay is required to coordinate multiple control elements. In operation, energizing the input begins the timing interval, after which the DPDT contacts transition states to drive the connected apparatus. This model is identified as 700-HT12CU120, aligning with Allen-Bradley’s fixed-timing, plug-in tube-base relays for reliable, compact timing in rugged industrial environments.