What this MCCB carries — and what it doesn't
The Siemens SENTRON 3VA2116-5JQ32-0HA0 is a 3-pole molded case circuit breaker (MCCB) rated for 160 A continuous at 40 °C through 70 °C — no derating needed across that full ambient span, which simplifies panel thermal budgeting. Its interrupting capacity hits 187 kA at 240 V AC, dropping to 121 kA at 415 V and 440 V, then to 75.6 kA at 500 V, and 3.7 kA at 690 V. That 187 kA figure at 240 V tells you this breaker is built for high-fault installations where upstream transformer capacity is large — think service-entrance or main feeder duty in industrial switchboards. The unit includes a shunt trip release (STL) for remote tripping and a communication function. Ground-fault monitoring is implemented as summation current formation on the L-conductor. Power loss is listed at 25.5 W maximum.
Dimensions and panel fit
The breaker measures 181 mm high, 105 mm wide, and 86 mm deep. The 105 mm width is the standard 3-pole MCCB footprint for the SENTRON 3VA frame size that carries 160 A.