Its screw-type magnet coil terminals accept stranded power conductors from 70 to 240 mm², which covers the range for high-current motor feeders up to several hundred amps — the actual current rating depends on the duty class and coil voltage, so the buyer must match the nameplate AC-3 or AC-1 rating to the load. The 225 mm depth, 214 mm height, and 160 mm width define the panel footprint.
Switching frequency per duty class
The contactor's maximum switching rate varies by duty: 700 cycles/hour in AC-1 (resistive loads), 500 cycles/hour in AC-3 (standard motor starting) and AC-3e, 200 cycles/hour in AC-2 (slip-ring motor starting), and 130 cycles/hour in AC-4 (plugging/inching) (–,). For a conveyor or pump application cycling every few seconds, the AC-3 rate of 500 cycles/hour is adequate; for high-speed indexing or reversing duty, the AC-4 limit of 130 cycles/hour governs the selection.