The Siemens SENTRON 3VA2340-5JQ32-0KC0 is a 3-pole molded case circuit breaker rated for 400 A continuous current at 40 °C, with an ETU560 electronic trip unit. That 400 A holds flat through 50 °C; above that, derate to 375 A at 55 °C, 350 A at 60 °C, 325 A at 65 °C, and 300 A at 70 °C (–). Breaking capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V (–).
Integrated accessories and compliance
The integrated basic switch is order code 3VA2340-5JQ32-0AA0, and the auxiliary trip module is 3VA9688-0BL33 — these are the internal sub-assemblies, not field-installable kits. No undervoltage release, no phase-failure detection, no trip indicator. Communication function is present, which on the ETU560 typically means PROFIBUS or PROFINET via a communication module — confirm the specific protocol with the order code suffix.