The Siemens SENTRON 3VA1463-4EF32-0KG0 is a 3-pole molded case circuit breaker (MCCB) rated for 630 A at 40 °C, with a TM240 thermal-magnetic overcurrent release. The breaking capacity reaches 121 kA at 240 V AC, 75.6 kA at 415/440 V, 52.5 kA at 500 V, and 11.9 kA at 690 V — figures that govern selectivity and SCCR coordination in a distribution panel.
Power loss at rated load is 192.9 W maximum — a figure to account for in enclosure thermal calculations. The operating temperature range is -25 °C to +70 °C, with derating beginning at 55 °C (618 A at 55 °C, stepping down to 583 A at 70 °C). A voltage-trigger indicator and trip indicator are present on the front for quick fault isolation during commissioning or troubleshooting.
