What this MCCB is and where it fits
The Siemens SENTRON 3VA2225-5HL32-0BB0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current, designed for line protection in distribution panels. It carries a maximum breaking capacity of 187 kA at 240 V AC and 121 kA at 415 V AC, so it can clear high-fault currents on the main feeder without the arc flashing upstream. The 86 mm depth and 105 mm width mean it occupies a standard MCCB footprint in a panel — you're looking at a 3-pole unit that fits a typical bolt-on or plug-in base.
Breaking capacity — what the numbers mean for your fault-current study
This breaker's interrupting rating drops as the system voltage climbs: 187 kA at 240 V, 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 4.5 kA at 690 V. That 4.5 kA at 690 V is the limiting figure — if your panel's available fault current exceeds that at 690 V, this breaker won't clear it safely. The continuous current holds at 250 A from 40 °C up to 50 °C, then derates to 241 A at 55 °C and 213 A at 70 °C. That matters for an enclosed panel in a hot machine room: you lose about 15% of the ampacity by the time ambient hits 70 °C.
Built-in auxiliaries and releases
It ships with an undervoltage release (UVR) and two HP auxiliary switches — those are wired into the control circuit for status feedback or shunt-trip logic. The UVR means the breaker will trip if the control voltage drops out, which is standard for safety circuits or emergency-stop chains. No ground-fault monitoring or communication function on this variant, so if you need those, you're looking at a different order code in the 3VA2 family.