63 A MCCB with ETU550 — fit and ratings
The Siemens 3VA2063-7JP32-0AA0 is a SENTRON 3VA2 molded case circuit breaker rated for 63 A continuous current across the full ambient range from -25 °C to 70 °C, with no derating required up to 70 °C. Its interrupting capacity reaches 242 kA at 415 V, sufficient for high-fault installations where upstream transformer capacity demands a robust withstand rating. The 105 mm width and 86 mm depth fit standard SENTRON 3VA2 panel cutouts and busbar arrangements; the 181 mm height leaves clearance for cable entry from above or below. The unit includes communication functionality via the SENTRON 3VA2 communication module slot.
Interrupting capacity across voltage levels
The breaker's interrupting capacity varies with system voltage: 330 kA at 240 V, 242 kA at both 415 V and 440 V, 187 kA at 500 V, and 3 kA at 690 V. The minimum rated current is 95 A, and the maximum is 756 A, defining the trip-unit adjustment range.