Allen-Bradley 852S-NSA Solid State Timing Module

The Allen-Bradley 852S-NSA Solid State Timing Module delivers precise 0.1–5.0 second on-delay timing in a compact, relay‑mounted package designed for Bulletin 852S installations on Type N relays. It is wired as an on‑delay timer with the option to convert to off‑delay mode, and accepts 110 V at 50 Hz or 120 V at 60 Hz input, switching through NEMA B300 sealed contacts for robust isolation in industrial control circuits. Typical applications include sequencing and interlock functions in manufacturing equipment, conveyors, and packaging lines where a predictable delay between input signals and a relay coil is required. The module’s enclosure measures approximately 2.2 inches wide by 4.0 inches high by 6.0 inches deep and weighs about 2 lb 1.8 oz (roughly 1.0 kg), with the unit manufactured in the United States. As part of Allen‑Bradley’s solid‑state timing family, the 852S‑NSA provides a durable, wear‑free timing solution for control schemes requiring repeatable on‑delay performance across common industrial operating conditions.