The interrupting capacity hits 187 kA at 240 V, drops to 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V.
At 45 °C it derates to 612 A, at 50 °C to 593 A, at 55 °C to 575 A, at 60 °C to 557 A, at 65 °C to 538 A, and at 70 °C to 520 A. Plan the load accordingly. That 138 mm width across three poles is standard for a 630 A frame. Max power loss is 162 W. The storage limits are wider because the breaker isn't carrying current — that's the handling spec, not the running spec.
What the auxiliary switch complement means for your control wiring
That's four separate signal paths — enough for a PLC input, a status lamp, a remote SCADA point, and a spare. The shunt trip (STL) allows remote tripping by applying a control voltage. No undervoltage release is fitted, so the breaker won't automatically open on loss of control power — that's a deliberate choice for applications where you want the load to stay online even if the control supply drops. Trip indicator is present — a mechanical flag visible on the front of the breaker shows whether it tripped on fault or was manually switched off. Helps the maintenance tech distinguish a real event from a test or isolation.