MCCB for 250 A line protection — full thermal rating across the panel temperature range
The Siemens SENTRON 3VA2325-6HL32-0KH0 is a 3-pole molded case circuit breaker rated for 250 A continuous current, and that rating holds flat from 40 °C all the way up to 70 °C — no derating needed inside a warm enclosure. Breaking capacity reaches 242 kA at 240 V and 187 kA at 415 V, so it can interrupt high fault currents on the secondary side of a distribution transformer without upstream coordination issues. The design is line protection (feeder protection), with a shunt trip (STL) auxiliary release and two auxiliary switches plus one trip alarm switch (HQ) for remote status indication.
Panel fit and mounting — 138 mm wide, 110 mm deep, 248 mm tall
Mounts on a DIN rail or direct panel surface. At 138 mm wide, 110 mm deep, and 248 mm tall, it fits standard distribution panel cutouts for 250 A frame MCCBs. The basic switch variant is 3VA2325-6HL32-0AA0; this order code adds the shunt trip and auxiliary switch block pre-installed.