Switching capacity and duty-cycle reality
Maximum switching rates are specified per duty class: 1,000 operations per hour at AC-1 (resistive), 800/h at AC-3 (squirrel-cage motor starting/running), and 250/h at AC-4 (plugging, inching). The AC-3e rating matches the AC-3 rate at 800/h. These numbers govern contactor life under continuous cycling — a conveyor line running at 600/h on AC-2 duty is well within the 600/h maximum, while a press brake jogging at AC-4 should not exceed 250/h. The auxiliary switch is included, with contact ratings ranging from 10 A at 24 V up to 52 A at 480 V (resistive), covering pilot-duty and small-load switching.
Arcing time is 10 to 20 ms; the coil terminal type is screw-type, accepting 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire.
