Rated 63 A at 40 °C, it holds that full rating up to 50 °C, then derates to 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C — useful if the breaker lives in a hot enclosure or next to other heat sources. The 220 kA breaking capacity at 240 V and 154 kA at 415 V mean it can interrupt very high fault currents without upstream fuses or a bigger breaker; at 690 V it still clears 17 kA. That SCCR headroom is what lets you coordinate downstream without cascading failures. The auxiliary switches give status feedback (open/closed) to a PLC or indication lamp without needing a separate contactor block. If you need ground-fault or Modbus, you're looking at a different variant in the 3VA family.
Dimensions: 130 mm height, 76.2 mm width (3 inches), 70 mm depth. The 70 mm depth leaves room for rear-connected busbars or cable ladders behind the breaker.
With 220 kA at 240 V and 154 kA at 415 V, this breaker gives you full selectivity against most downstream 10 kA or 18 kA rated MCBs and MCCBs — the upstream breaker stays closed for a fault on the load side, so only the faulted branch drops out.