What this MCCB carries and where it fits
The Siemens SENTRON 3VA2010-6HL32-0BC0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Interrupting capacity hits 242 kA at 240 V, dropping to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V. That SCCR headroom makes it a strong choice for high-fault distribution panels where selectivity with upstream breakers is critical. Designed for line protection, this MCCB includes an undervoltage release (UVR) and two factory-fitted HQ auxiliary switches — no field retrofitting needed for those functions. The UVR ensures the breaker trips on loss of control voltage, a common requirement in safety circuits and emergency-stop chains.
Physical fit and panel integration
Dimensions: 86 mm deep, 105 mm wide, 181 mm tall. That footprint matches the standard SENTRON 3VA fixed-mount MCCB form factor — direct swap into existing 3VA panel cutouts without re-drilling. The width is the critical dimension for multi-breaker groupings on a DIN rail or mounting plate.
What the ratings mean for your application
The 100 A continuous rating is flat across the operating temperature range of -25 °C to 70 °C, so you don't lose capacity in a warm enclosure. Power loss is 16 W maximum — manageable for thermal budgeting in a dense panel. The interrupting ratings (242 kA at 240 V, 187 kA at 415/440 V, 121 kA at 500 V, 3 kA at 690 V) tell you this breaker can clear high fault currents without cascading upstream. For a 480 V distribution board with a transformer secondary fault current of 65 kA, this breaker has nearly 3× headroom — that's selectivity margin.