100 A MCCB with flat thermal derating and high SCCR
The Siemens SENTRON 3VA2110-5HL32-0JC0 is a 3-pole molded case circuit breaker rated for 100 A continuous current, with a flat derating curve from 40 °C through 70 °C — no reduction needed across that full ambient span, which simplifies panel thermal budgeting in warm enclosures. Breaking capacity sits at 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — the 240 V figure covers most North American distribution panels, while the 415/440 V numbers handle European 400 V grids with headroom for high-fault locations like substation secondaries. Designed for line protection, this MCCB includes a shunt trip (STL) auxiliary release and two HQ auxiliary switches, giving remote trip capability and status feedback without an add-on module.
Panel fit and footprint
Dimensions are 86 mm deep, 105 mm wide, and 181 mm high (3.39 x 4.13 x 7.13 in) — the 105 mm width is standard for a 3-pole SENTRON 3VA2 frame, so it drops into existing panel layouts without re-spacing the DIN rail or busbar system. Maximum power loss is 10 W, which keeps internal cabinet heating low even under full load — relevant for sealed enclosures with limited convection.