The Siemens SENTRON 3VA2063-5HL32-0AF0 is a 3-pole molded case circuit breaker (MCCB) designed for line protection, rated 63 A continuous with a flat derating curve that holds 63 A all the way to 70 °C ambient — no need to down-rate in a warm panel. Its interrupting capacity hits 187 kA at 240 V and stays at 121 kA through 440 V, then drops to 75.6 kA at 500 V and 3 kA at 690 V — that 187 kA figure at 240 V means it handles high-fault utility feeds without cascading upstream breakers.
Panel integration
The 3-pole design with line-protection trip curve suits main or branch feeder duty in distribution boards.
