What this MCCB is and what it does
The Siemens 3VA2010-6HN46-0AA0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in distribution panels. Rated 100 A continuous current with four poles, it handles fault interruption up to 242 kA at 240 V — that rating means it clears high-energy faults on the line side without upstream damage, a key spec for panel SCCR coordination. The ETU350 overcurrent release provides electronic trip adjustment, giving selectivity flexibility downstream.
Breaking capacity across voltages — what it means for your system
Breaking capacity drops with system voltage: 242 kA at 240 V, 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V. The 690 V figure is the limiting case — if your installation runs at that voltage, verify the available fault current stays under 3 kA, or step up to a higher-rated frame. The 100 A rating holds flat across ambient temperatures from 40 °C to 70 °C (–), so no derating needed in a warm enclosure.
Physical fit and panel integration
Dimensions are 86 mm deep, 140 mm wide, 181 mm high. Four-pole MCCB of this width typically occupies a standard MCCB slot in a distribution panel; the 140 mm width matches the common footprint for a 4-pole 100 A frame. Front IP40 protection means it is splash-safe from the front but not sealed — keep it inside the enclosure, not in a washdown zone.