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. Designed for line protection, it carries an undervoltage release (UVR) and a full auxiliary switch pack: two auxiliary switches, one trip alarm switch, and one electrical alarm switch HQ.
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. That 187 kA figure at 240 V tells you this breaker is built for high-fault-current panels — typically downstream of a large transformer or in a main distribution board where available fault current is high. 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.
Dimensions and panel fit
At 86 mm deep, 105 mm wide, and 181 mm tall, this 3VA frame fits standard MCCB mounting footprints. The 105 mm width is critical for multi-pole ganging — verify busbar spacing and phase-to-phase clearance.