What you're looking at
It's designed for switching motor loads — think pumps, conveyors, compressors — in industrial control panels. The coil pulls 6.5 A inrush peak and holds at 24 VDC nominal. Pick-up is at 0.7 of rated voltage; drop-out is at 1.25 of rated voltage, so it releases reliably on undervoltage.
Ratings that matter for the line
For motor duty, the AC-3 rating is what drives selection: 77 A at 480 V and 62 A at 600 V. That translates to 15 hp at 230 V — enough for a moderate pump or a small conveyor drive. The main contacts are rated for AC-4 duty at 300 operations per hour maximum — that's the severe switching category for plugging or inching. If your application does frequent reversing, this is the number to watch. The arcing time runs 10 to 20 ms, and the operating time (DC) is 38 to 57 ms. That's fast enough for most sequence control.
The Size S3 footprint is 70 mm wide, 140 mm high, and 152 mm deep — so it takes up about the space of a thick paperback on the rail. That helps when you're squeezing it into a crowded enclosure. Keep those gaps for airflow and arc flash separation.
Terminals and wiring
The magnet coil uses spring-type terminals — no screwdriver needed for the coil connection. Main contact wiring accepts 2x (0.5 to 2.5 mm²) solid or stranded, which covers standard control wiring up to 14 AWG.
Environmental range
Operating temperature spans -40 to +70 °C — fine for unheated plant floors or outdoor cabinets in moderate climates.