The auxiliary switch is built in, saving a slot on the rail for a separate block.
AC-4, which handles inching and plugging, is lower at 130 ops/h, so if your application needs frequent reversing, that's the limiting figure. The MTBF of 75 a is a reliability benchmark for the coil and mechanism, not a guarantee of contact life under heavy use — that depends on the load and switching frequency.
Mounting and wiring notes
This contactor uses screw fixing, not a DIN-rail clip, so plan for a drilled backplate or a mounting adapter. Main power wiring accepts stranded conductors from 25 to 120 mm², so it's sized for the heavier feeds typical of a Size S6 contactor. The coil terminals are screw-type, and the auxiliary contacts take 0.5-1.5 mm² solid or stranded.