The integrated auxiliary switch provides a separate signal path for the trip status, wired to a PLC or indicator; this variant is marked "for message 'Tripped'", so the auxiliary contacts change state on overload, not on coil power.
Rated insulation voltage is 690 V, and the AC-3e rated maximum is also 690 V, so it lives comfortably on 400 V or 480 V systems without derating for voltage. The motor power ratings at 400 V are 0.18 kW; at 690 V, 0.25 kW. That tells you this is sized for small motors — fractional horsepower, not a 10 kW drive. The auxiliary contact ratings vary by voltage: 2 A at 24 V and at 230 V, 1 A at 400 V, and 0.3 A at 60 V. For a 24 VDC PLC input, the 2 A rating is plenty; for a 400 V control circuit, the 1 A limit governs.
Mounts directly onto a contactor — no DIN rail needed, though the contactor itself may be rail-mounted. The S00 frame is compact: 45 mm wide, 87 mm tall, 70 mm deep. Any mounting position is allowed, so vertical or horizontal orientation in the panel works. Main circuit connections use spring-loaded terminals accepting 2× (0.5...2.5 mm²) solid or stranded wire. The auxiliary switch is integrated, so no separate block to order. Temperature compensation is active from -40 to +60 °C, meaning the trip curve stays accurate across that ambient range — important if the panel sits near a hot machine or outdoors.