What it is and what it does
The Siemens 3VA2325-5HN32-0JL0 is a SENTRON molded case circuit breaker (MCCB) rated for 250 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Three poles, line-protection design, with a shunt trip release (STL) and a full auxiliary switch complement: 2 auxiliary switches plus 1 trip alarm and 1 electrical alarm switch (HQ). Breaking capacity hits 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 7.5 kA at 690 V — so it handles high-fault industrial feeds without cascading upstream.
Panel fit and mounting
Footprint is 138 mm wide, 248 mm tall, 110 mm deep — standard for a 250 A frame MCCB. Mounts on a DIN rail or direct-panel bolted; the 3-pole block leaves room for side-mount auxiliary modules. Verify gland-plate clearance for the 110 mm depth plus wiring bend radius.
