It carries a continuous current rating of 63 A at 40 °C, and that rating holds flat through 50 °C before a shallow derating curve begins: 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C. The interrupting capacity is what decides fit for available fault current: 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V. If your panel's prospective short-circuit current at the breaker line side exceeds those numbers at the system voltage, this breaker is not the right choice — step up to a higher interrupting frame.
Built-in release and auxiliary switch configuration
That is a common requirement for safety disconnects or emergency-stop chains where loss of control power must drop the load. A trip indicator flag on the front confirms the trip state visually at the panel door.
The 3VA1063-3ED32-0DH0 occupies a 76.2 mm wide by 130 mm tall by 70 mm deep footprint. Maximum power loss is 19.8 W.