What this MCCB is — and what the ratings mean for your panel
The Siemens 3VA2325-7HK32-0AA0 is a SENTRON molded case circuit breaker (MCCB) in the line protection version, carrying 250 A continuous at a flat thermal curve from 40 °C through 70 °C — no derating needed across the typical panel ambient range. Three-pole design with an ETU340 electronic trip unit. Breaking capacity hits 330 kA at 240 V, 242 kA at 415 V, and 187 kA at 500 V — drops to 7.5 kA at 690 V. That 330 kA figure at 240 V is the headline number for high-fault service-entrance or bus-duct applications where the available fault current is extreme. Rated insulation voltage 800 V, IP40 on the front face. Dimensions 248 mm high, 138 mm wide, 110 mm deep — fits standard panel-mount cutouts for the 3VA frame size. Maximum power loss 37.5 W.
Integration notes — panel fit and options
Mounts in a standard panel cutout for the 3VA frame; the 138 mm width and 110 mm depth mean it occupies roughly the same footprint as other 250 A MCCBs in the SENTRON family. Optional motor drive available for remote switching. No undervoltage release, no voltage trigger, no communication module on this variant — keep that in mind if remote trip or status feedback is needed.