Rated for AC-3 duty at 6 A up to 440 V, it switches three-phase induction motors up to that current in start-run-reverse cycles. The 256 V AC 50/60 Hz coil is the control side; one normally-open auxiliary contact is built in for feedback or holding circuits.
The AC-3 rating of 6 A at ≤440 V is the motor-switching current. AC-4 rating also listed covers inching/plugging duty.
