What this MCCB carries — and what it interrupts
The Siemens SENTRON 3VA2063-8JP42-0AA0 is a 4-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. The ETU550 electronic trip unit gives you adjustable overload and short-circuit protection curves, plus a communication function for integration into a monitored distribution system. Interrupting capacity is the headline number here: 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and still 52.5 kA at 690 V. That puts this breaker in the high-fault-current class — sized for main or large feeder duty where available fault current is substantial.
Panel fit and footprint
The 3VA2063-8JP42-0AA0 measures 140 mm wide, 181 mm tall, and 86 mm deep — a standard SENTRON 3VA frame size that drops into existing panel layouts without re-drilling. Front IP40 protection means it's suited for enclosed distribution boards where splash or tool ingress is minimal.