What this MCCB is and what it does
The Siemens 3VA2010-6HM46-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current in a 4-pole configuration, designed for line protection in distribution panels and motor control centers. The 100 A rating holds flat across the full ambient range from 40 °C to 70 °C — no derating needed in a warm enclosure, which simplifies panel build calculations. Breaking capacity is 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 242 kA figure at 240 V covers high-fault utility feeds common in North American industrial services; the 187 kA at 415 V handles European 400 V distribution. The steep drop to 3 kA at 690 V means this frame is not intended for 690 V motor circuits — verify the system voltage against the curve before specifying.
Ground-fault monitoring and panel fit
This MCCB includes ground-fault monitoring via summation current formation on the L + N conductors — it measures the vector sum of line and neutral current, so it catches leakage to earth without a separate sensor. No undervoltage release, no communication function, and no trip indicator on this variant; it is a straight thermal-magnetic line-protection breaker with GF add-on. Dimensions are 86 mm deep, 140 mm wide, 181 mm tall. The 140 mm width for a 4-pole frame is standard for SENTRON 3VA plug-in or fixed versions; it occupies the same panel footprint as other 4-pole 3VA breakers in the 100 A class, so a panel laid out for a 3VA2163-8HM32-0AA0 will accept this unit without re-drilling the mounting plate or re-routing busbars.