Allen-Bradley 800T-QAH10A NSNBC01 Time Delay Relay

Allen-Bradley 800T-QAH10A NSNBC01 Time Delay Relay is a compact, 30.5 mm‑wide timer relay from the 800T family designed for panel-mount installation in industrial control panels. It provides precisely timed ON‑delays for control circuits, enabling downstream loads such as conveyors, motors, or indicator lamps to energize after a set interval, improving sequencing and startup behavior. The NSNBC01 variant denotes a specific wiring/coil configuration within the Allen‑Bradley catalog, while the QAH10A suffix indicates a 10 A‑rated contact arrangement suitable for many common control loads. The 800T family features adjustable timing ranges via an internal dial to configure the delay and supports typical ON‑delay operation, where the output remains energized for the programmed interval following input energization. Typical applications include start‑up sequencing, interlocking, and delay circuits in manufacturing equipment, where repeatable timing improves reliability and coordination between machines. This model delivers a compact, ladder‑friendly timing solution that minimizes external components while providing predictable timing performance in industrial automation environments.