The Siemens SENTRON 3VA2063-6HL32-0CA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 63 A continuous current across the full ambient range from -25 °C to 70 °C with no derating.
Interrupting capacity hits 242 kA at 240 V AC, 187 kA at 415/440 V, and 121 kA at 500 V — figures that put it in the high-fault tier for an MCCB this size. The 7.9 W maximum power loss matters for thermal budgeting in a sealed or densely packed enclosure — every watt counts when calculating internal temperature rise.
Built-in undervoltage release
No external undervoltage module to mount or wire.