What this 3VA2225-6JP32-0AJ0 is and what it does
This Siemens SENTRON 3VA2225-6JP32-0AJ0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C ambient, with a maximum breaking capacity of 242 kA at 240 V AC and 187 kA at 415/440 V AC — enough headroom to clear a high-fault utility feed without cascading upstream. It is designed for line protection (not motor or generator protection) and carries a communication function, so it can report status and trip events to a PLC or BMS over the integrated bus interface.
Breaking capacity and derating — what the numbers mean
The 242 kA at 240 V is the short-circuit current it can safely interrupt at that voltage. At 500 V that drops to 121 kA, and at 690 V it falls to 4.5 kA — so if your panel feeds a 690 V bus, this breaker is not the right choice for high-fault locations. The continuous rating holds at 250 A from 40 °C up to 50 °C; above that it derates linearly to 200 A at 70 °C. A panel that runs hot near the breaker needs to account for that curve.
Panel fit and auxiliary wiring
The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep — a standard 3-pole MCCB footprint that fits most Siemens SENTRON panelboards and switchboards. It ships with 2 auxiliary switches plus a trip alarm switch (HP design), so you get both position and fault indication without adding external relays. No undervoltage release or ground-fault monitoring is built in; those are separate accessories if your spec requires them.