The Siemens SENTRON 3VA2110-8HM32-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, designed for line protection in distribution panels and switchgear. Its 800 V rated insulation voltage and 440 kA breaking capacity at 240 V AC mean it can safely interrupt high fault currents without upstream damage — a key spec for high-fault installations like industrial mains or transformer secondaries.
Breaking capacity drops with voltage: 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V. The 52.5 kA at 690 V still covers most industrial motor-drive feeder applications; the 440 kA at 240 V suits high-fault US-style 240 V delta services.
Dimensions: 181 mm high, 105 mm wide, 86 mm deep. Operates from -25 °C to 70 °C, stores from -40 °C to 80 °C.
Ground-fault monitoring and design
Includes summation-current ground-fault monitoring (L-conductor formation) — a feature for detecting leakage in solidly-grounded systems without a separate GFCI module.