Allen-Bradley 700-HT22AA1 Time Delay Relay 120V

Allen‑Bradley 700-HT22AA1 Time Delay Relay is a tube-base, general‑purpose timer from Rockwell Automation that provides a defined off‑delay interval in 120 V AC control circuits. It belongs to the 700‑HT series of tube‑base timing relays and uses a 120 V AC coil rated for 50/60 Hz, enabling straightforward integration into standard control panels without a separate power supply. This DPDT (two Form C) device delivers an adjustable delay in the range of 0.1 to 10 seconds, so the output contacts switch state after the programmed interval once energization occurs, making it suitable for sequencing, interlocks, and start/stop timing tasks. The 700‑HT22AA1 variant is designed for plug‑in installation in compatible Allen‑Bradley 700‑HT bases, offering fast replacement and consistent timing behavior across assemblies. In practice, this timer is used to inject a brief delay into machine cycles, coordinate conveyor or actuator advance, or provide a controlled turn‑on/turn‑off sequence in automation panels where precise timing between two circuits is required.