It carries a 187 kA interrupting rating at 240 V, dropping to 121 kA at 415 V and 440 V, and 75.6 kA at 500 V — enough headroom for most industrial main or feeder breakers in a 480 V panel.
Above 50 °C it steps down: 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, 300 A at 70 °C. It also supports communication — the breaker has a communication function, so it can talk to a BMS or SCADA system for remote monitoring and trip-event logging. An undervoltage release (UVR) is built in — part number 3VA9608-0BB11 for the integrated auxiliary trip. If your safety circuit needs to drop the breaker on loss of control voltage, that release is already specified.
The breaker measures 138 mm wide by 248 mm tall by 110 mm deep — a standard SENTRON 3VA frame size for 400 A. The 110 mm depth leaves room for cable bending radius in a 600 mm deep enclosure. Maximum power dissipation is 98.5 W at rated current.