The Siemens SENTRON 3VA2340-6HL32-0KH0 is a 3-pole molded case circuit breaker (MCCB) rated for 400 A continuous at 40 °C, with a breaking capacity of 242 kA at 240 V. At 415 V and 440 V the rating holds at 187 kA, and at 500 V it still delivers 121 kA; only at 690 V does it drop to 7.5 kA, so confirm your system voltage against the curve. The continuous current is flat at 400 A from 40 °C through 50 °C, then derates linearly: 385 A at 55 °C, 370 A at 60 °C, 355 A at 65 °C, and 340 A at 70 °C.
Built-in accessories — shunt trip and auxiliary switches
The shunt trip lets a safety PLC or E-stop circuit open the breaker without a manual action — useful for emergency-off chains or remote load shedding. The auxiliary switches provide status feedback to the control system; the trip alarm switch signals a fault trip separately from a manual open. If you need UVR or GF protection, that requires a different variant or an add-on module.
The breaker measures 248 mm high, 138 mm wide, and 110 mm deep (9.76 × 5.43 × 4.33 inches). The 3-pole footprint matches standard SENTRON 3VA2340 mounting patterns — no adapter plate needed for a panel designed around the same frame size.