63 A MCCB with shunt trip — line protection for high-fault panels
The Siemens SENTRON 3VA2063-6HN32-0HA0 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 up to that ceiling. Breaking capacity hits 242 kA at 240 V AC, 187 kA at 415/440 V, and 121 kA at 500 V, which places it squarely in high-fault-duty service entrance or distribution panels where available fault current is substantial. The supplied basic switch is order code 3VA20636HN320AA0, which is the core switching mechanism inside the molded case.
The 86 mm depth keeps the breaker within standard SENTRON mounting depth, leaving room for rear busbar connections and cable egress.