MCCB with ETU350 — 25 A frame, 330 kA interrupting capacity
The Siemens 3VA2125-7HN36-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 25 A continuous current at 40 °C, with a 3-pole configuration and an ETU350 electronic overcurrent release. Its interrupting rating reaches 330 kA at 240 V AC, dropping to 242 kA at 415 V and 440 V, and 187 kA at 500 V — numbers that tell you this breaker is built for high-fault-capacity distribution panels where selective coordination matters.
Panel fit and mounting — 105 mm wide, DIN-rail compatible
Mounting is via the integral DIN-rail clip — no adapter plate needed for most enclosures.
Storage limits span -40 °C to 80 °C. Maximum power loss is 0.6 W — negligible for panel thermal budgeting.
