What this 63 A MCCB does on the line
The Siemens SENTRON 3VA2063-5HL32-0AH0 is a 3-pole molded case circuit breaker rated for 63 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed in a warm panel. Its interrupting capacity hits 187 kA at 240 V and still delivers 121 kA at 415 V and 440 V, so it handles high-fault scenarios common in industrial distribution without cascading upstream.
Panel fit and footprint
The 86 mm depth leaves room behind the door for wiring gutters or a second row of terminals.
