The 630 A frame size and 3-pole configuration mean it fits as a main breaker in a 400 V switchboard or as a feeder breaker feeding a large motor control center. The communication function is built in, so it can talk to a higher-level energy management system or automation controller over the plant network.
The 630 A continuous rating at 40 °C is the baseline — but the breaker derates as ambient temperature climbs: 600 A at 45 °C, 570 A at 50 °C, down to 450 A at 70 °C. That derating curve is the real selection gate, not the 630 A nameplate number. The interrupting ratings across voltages tell you where this breaker can sit without upstream fusing. At 500 V it still handles 121 kA, so it's fine for most 480 V industrial services. Physical footprint: 138 mm wide, 248 mm tall, 110 mm deep.
Width 138 mm fits a 3-pole MCCB slot. Shunt trip (STL) requires a separate control voltage. The auxiliary switches (2x) and trip alarm switch (HQ) are pre-wired to a terminal block on the breaker face. That saves panel-builder wiring time compared to adding separate aux contact blocks. The communication function uses the SENTRON 3VA communication module interface — verify protocol compatibility (PROFIBUS, PROFINET, or Modbus) with the specific module ordered alongside this breaker.