The coil is rated 175-280 VAC, drawing 3.5 VA at both 50 Hz and 60 Hz — a single coil covers line voltages across most European and Asian mains without a tap change. Main contact wiring accepts solid conductors 2.5-16 mm² or stranded 6-70 mm², giving flexibility for both panel-building and field retrofit where lug sizes vary.
Switching frequency by duty class
The contactor's maximum switching rate depends on the load type: 900 operations/hour for resistive loads (AC-1), 850 ops/hour for motor starting (AC-3 and AC-3e), 350 ops/hour for slip-ring motor reversing (AC-2), and 250 ops/hour for plugging/inching (AC-4). For a conveyor line running AC-3 duty, the 850 ops/hour ceiling is the one that governs cycle time — not the AC-1 figure.
The 70 mm wide S3 frame requires 10 mm clearance upward, downward, and to the side, and 20 mm forward for arc-chamber venting.
