The switching frequency tells you what duty cycle the contactor can sustain: 1,000 operations per hour in AC-1 (resistive loads), 750/h in AC-2 and AC-3 (motor starting and running), and 250/h in AC-4 (plugging and inching). For a conveyor or pump running continuous AC-3 duty, 750 ops/h means it cycles roughly every 4.8 seconds — enough for most process lines. An auxiliary switch is built in, rated for 10 A at 24 V, 2 A at 48/60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, 3 A at 400 V, and 0.6 A at 440 V.
Mounting and wire termination
The contactor accepts solid or stranded wire from 1 to 10 mm² on the main contacts, and 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) on the auxiliary circuit. The coil terminals are screw-type.