Part identity and key ratings
The Siemens SENTRON 3VA2010-5JQ32-0KH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 100 A and an insulation voltage Ui of 800 V. It is fitted with an ETU560 electronic overcurrent release and a shunt trip (STL) auxiliary release. Breaking capacity reaches 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 3.4 kA at 690 V — these figures define the maximum fault current the breaker can safely interrupt at each voltage level, critical for panel SCCR coordination. Current rating holds at 100 A up to 50 °C ambient; above that it derates linearly to 85 A at 70 °C. This thermal curve governs the real-world ampacity in a warm enclosure — the 100 A nameplate applies only when the panel stays below 50 °C.
Auxiliary and communication features
The breaker includes 2 auxiliary switches plus 1 trip alarm switch (HQ configuration), a shunt trip release (STL), and a communication function — enabling remote monitoring and trip indication. The integrated auxiliary trip is order code 3VA9688-0BL33. Maximum power loss is 13.5 W, which factors into enclosure thermal calculations when multiple breakers are ganged.
Dimensions and panel fit
The 3VA2010-5JQ32-0KH0 measures 181 mm high, 105 mm wide, and 86 mm deep. These dimensions govern the panel cutout and bus-bar spacing — the 105 mm width is standard for 3-pole 3VA frames, so it drops into existing 3VA panel layouts without rewiring.