The shunt trip allows remote tripping from a PLC safety output or emergency-stop circuit, while the auxiliary contacts feed status back to the control system.
Breaking capacity across voltages
Breaking capacity drops with system voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V and 690 V. At 415 V — common in European industrial networks — the 121 kA figure still covers most transformer-fed busbars.
Thermal derating and ambient limits
The breaker holds 32 A continuously from 40 °C through 50 °C, then derates to 31 A at 55–60 °C and 30 A at 65–70 °C. The 10.6 W maximum power loss matters for enclosure thermal calculations — if you pack multiple breakers in a sealed panel, factor that heat into the ventilation or cooling budget.