It uses an ETU550 electronic trip unit, which gives you adjustable protection curves — useful for coordinating with downstream breakers in a distribution panel.
Above that, it derates to 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, and 200 A at 70 °C — so if your panel runs hot, you need to account for that. Breaking capacity varies by voltage: 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 5.1 kA at 690 V. The ETU550 release supports communication functions, so it can report status and trip events over a bus — handy for a plant-wide power monitoring system. It also has an undervoltage release (UVR) built in, which drops the breaker if control power is lost, meeting safety requirements for emergency stops.
Mechanical endurance is 20,000 operations — that's typical for a molded case breaker used as a main disconnect; not for frequent switching duty, but fine for infrequent manual operation or remote-controlled opening via the UVR. Maximum power loss is 50.5 W — plan for heat dissipation in the enclosure if the breaker is fully loaded continuously.