The Siemens 3VA2010-5KP32-0BH0 is a SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Three poles, line-protection design, with an undervoltage release (UVR) built in and a communication function for remote monitoring or trip indication. Interrupting capacity hits 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 3 kA at 690 V, so it handles high-fault utility feeds without cascading upstream.
Panel footprint: 105 mm wide, 181 mm tall, 86 mm deep. The 3VA2 frame mounts on a DIN rail or direct panel; the undervoltage release (UVR) is factory-installed, so no field-add kit needed. Auxiliary switch configuration is 2 auxiliary switches plus 1 trip alarm switch (HQ design) — covers status feedback and remote trip indication without extra wiring.
Power loss is 16 W maximum at rated load — manageable for panel thermal budgeting. Ambient operating range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. Trip indicator is present, and the breaker includes a communication function.