The Siemens SENTRON 3VA2010-5KP32-0DL0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C, making it a thermally stable choice for panel builds where derating is a concern.
Breaking capacity and fault clearing
Breaking capacity is the headline spec on this MCCB: 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V. The steep drop to 3 kA at 690 V means it is not intended for 690 V main service; its sweet spot is 240–500 V distribution.
The 105 mm width is critical for multi-pole ganging — verify busbar spacing and phase-to-phase clearance.
