54 A motor current — what it means for the line
The A50-30-00-84: Rated 54 A in AC-3 duty, this 3-pole contactor switches motor loads up to that full-load current — the 80 A general-purpose (AC-1) rating covers resistive or lightly inductive loads. The 120 V AC coil pulls the contactor in reliably from a standard control transformer on the panel.