The Siemens SENTRON 3VA2340-6JP32-0HC0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 400 A continuous at 40 °C and delivering a breaking capacity of 242 kA at 240 V AC.
Breaking capacity across voltages
The breaking capacity drops as voltage rises: 187 kA at 415 V and 440 V, 121 kA at 500 V, and 7.5 kA at 690 V.
Thermal derating curve
Above that it derates linearly: 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C.
The breaker measures 138 mm wide, 248 mm tall, and 110 mm deep. The 3-pole footprint is standard for SENTRON 3VA2 frames; if you are retrofitting into an existing panel that held a 5SQ2370-2YA05 or similar MCCB, check the mounting hole pattern and bus bar spacing — the 3VA2 uses a different rear-connection layout than the older 5SQ series.
Built-in accessories and options
Includes shunt trip (STL), two HQ auxiliary switches, and communication function.