The Siemens SENTRON 3VA2463-5HL32-0AH0 is a 3-pole molded case circuit breaker rated 630 A continuous at 40 °C, with a maximum breaking capacity of 187 kA at 240 V. At 415 V and 440 V it still holds 121 kA, and at 690 V it drops to 9 kA, so the voltage-dependent rating governs the installation's SCCR coordination. Thermal derating is published across the operating range: 630 A at 40 °C, 612 A at 45 °C, 593 A at 50 °C, 575 A at 55 °C, 557 A at 60 °C, 538 A at 65 °C, and 520 A at 70 °C. That's the curve you use for panel ambient — not the nameplate 630 A — when the enclosure runs hot.
Dimensions: 110 mm deep, 138 mm wide, 248 mm tall. The 138 mm width fits standard 3-pole MCCB cutouts in SENTRON distribution blocks.
Auxiliary switch configuration
That's the bare-bones line-protection variant — if you need shunt trip or GFCI, this isn't the order code.