The 220 V AC 50 Hz coil pulls in cleanly on a standard control transformer; verify the control circuit supplies the full rated voltage at the coil terminals, not the bus side of a long run. The 3 NO main poles and the built-in 3 NO + 2 NC auxiliary contacts cover most motor starter schemes without an add-on block. The AC-1 rating (resistive loads like heating or lighting) is higher than the AC-3 motor rating, so the limiting factor for motor duty is the 470 A AC-3 figure.
The TeSys B frame accepts screw-clamp or spring-cage power terminations; verify the lug kit matches your cable cross-section before terminating. The coil draws inrush current at pickup — size the control transformer for the peak, not the sealed VA. Auxiliary contacts share the same arc-suppression guidelines as the main poles; a snubber across the coil extends life on frequent cycling.
