Rated 37 kW at 500 V in AC-3 duty, this contactor handles the heavy lifting on conveyors, pumps, and compressors up to that motor power. The AC-4 rating of 55 A at 400 V covers the inching and plugging cycles that wear out smaller contactors fast. Screw-type terminals on the main circuit accept solid wire 2x (0.25–2.5 mm²) and stranded 2x (10–50 mm²), giving the panel wireman a clear termination range for both control and power feeds.
Lifecycle and compliance — still active, no surprises
Substance prohibited as of 05/01/2012, which aligns with the RoHS compliance date.
The AC-1 maximum switching rate of 1000 1/h tells you this contactor can cycle resistive loads (heaters, lighting) at that pace without overheating the coil or arc chamber. For AC-3 motor switching, the same 1000 1/h rate applies — typical for start-run cycles on a conveyor. AC-4 drops to 300 1/h, reflecting the heavier arc wear from reversing or jogging. Arcing time is 10–19 ms at AC and 10–15 ms for the main contacts — that is the interval the arc extinguishes after the coil drops. It matters for coordination with upstream fuses or breakers: a slower arc can let fault current ride through, but this range is standard for a contactor of this frame. The IP20 front (IP00 at the terminal) means the contactor body is finger-safe once mounted in an enclosure; the terminals themselves need the panel door or a terminal cover for protection. Mechanical life of 10,000,000 operations typical for this class.
Dimensions: 70 mm wide, 146 mm high, 139 mm deep. The auxiliary contact block (not included) plugs onto the front; the coil terminals are screw-type and accept the same wire ranges as the main circuit. For the control wiring, the 2x (0.25–2.5 mm²) solid range covers typical 1.5 mm² control cable.