Siemens 3VA2225-5HL32-0AC0 — 250 A MCCB, Line Protection, Current Lifecycle
Its interrupting capacity hits 187 kA at 240 V and 121 kA at 415 V and 440 V, dropping to 75.6 kA at 500 V and 4.5 kA at 690 V — the 690 V figure tells you this is a 240–500 V workhorse, not a 690 V main. The breaker carries 2 HQ auxiliary switches built in, and the basic switch variant is 3VA2225-5HL32-0AA0.
Thermal Derating — What the 250 A Rating Actually Means in a Warm Panel
At 55 °C it derates to 241 A, at 60 °C to 232 A, at 65 °C to 222 A, and at 70 °C to 213 A.
Physical Fit — Panel Cutout and Mounting
It is a 3-pole molded case breaker designed for screw-mounting in a distribution panel — no DIN-rail clip.