The breaker carries 187 kA interrupting capacity at 240 V, 121 kA at 415 V, and 79 kA at 500 V — numbers that tell you it can handle high-fault utility feeds or transformer secondaries without cascading upstream.
Above that it derates linearly: 60.6 A at 55 °C, 58.3 A at 60 °C, 55.9 A at 65 °C, and 53.6 A at 70 °C.
Trip unit and auxiliary contacts
The ETU850 electronic trip unit provides adjustable long-time, short-time, instantaneous, and ground-fault protection curves — typical for a line-protection MCCB that needs coordination with downstream breakers. Maximum power loss is 5.4 W per pole, which adds up to about 16 W total heat inside the enclosure — worth checking against your panel thermal budget.