3VA2325-5JP32-0AA0 — SENTRON MCCB, 250 A, ETU550 Trip Unit
The Siemens 3VA2325-5JP32-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 250 A continuous current at 40 °C, with a 3-pole configuration and an ETU550 electronic trip unit for line protection duty. Breaking capacity reaches 187 kA at 240 V, 121 kA at 415 V, and 55 kA at 440 V — figures that govern fault-clearing capability across common industrial distribution voltages. At 690 V it still interrupts 7.5 kA. The ETU550 release allows adjustable time-current curves (tr min 0.5 s, tr max 25 s), giving the specifying engineer selectivity coordination headroom downstream.
Integration — Panel Fit and Mounting
Dimensions: 248 mm height, 138 mm width, 110 mm depth. The 3-pole frame mounts via screw fixing to a backplate or mounting rail in a standard distribution panel. Maximum power loss is 37.5 W — factor this into enclosure thermal calculations, especially when grouping multiple breakers in a sealed cabinet.