What this MCCB is and where it fits
The Siemens 3VA2325-6HL32-0DA0 is a SENTRON molded case circuit breaker (MCCB) for line protection, rated 250 A continuous at 40 °C through 70 °C without derating — that flat thermal curve means you can load it to nameplate in a warm panel without recalculating. It carries a 242 kA interrupting capacity at 240 V, dropping to 187 kA at 415 V and 440 V, then 121 kA at 500 V, and 7.5 kA at 690 V — the steep fall at 690 V tells you this breaker is optimized for 240–500 V distribution, not 690 V motor circuits. Three-pole construction with an integrated undervoltage release (UVR); no auxiliary switch or ground-fault module on this variant, so if you need shunt trip or GFCI, order the -0AA0 basic switch separately and add the auxiliary later.
Panel fit and mounting
Footprint: 138 mm wide, 248 mm tall, 110 mm deep — that depth is the body only; allow clearance for cable bending radius and the undervoltage release wiring. Standard DIN-rail or screw-mount pattern matches the 3VA2 family, so a swap from a 3VA2 of the same frame size is direct.