The Siemens SENTRON 3VA2225-6HL32-0JH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 250 A at 40 °C. Its interrupting capacity hits 242 kA at 240 V and still holds 187 kA at 415 V — that's serious fault-clearing headroom for a 250 A frame. The 105 mm width and 181 mm height fit standard panel layouts; depth runs 86 mm.
Breaking capacity and thermal derating
The 242 kA at 240 V means this breaker can safely interrupt faults up to that level without cascading upstream — critical for high-fault service entrances or transformer secondaries. At 500 V it still delivers 121 kA; at 690 V it drops to 4.5 kA, so it's not a 690 V main breaker but handles downstream feeders at that voltage. Thermal derating is gradual: 250 A holds steady through 50 °C, then drops to 241 A at 55 °C and 213 A at 70 °C. That means in a hot panel (say 55 °C ambient), you lose only 9 A — still well within a 250 A load's margin.
Built-in accessories and fit
The 3VA2225-6HL32-0JH0 comes factory-fitted with a shunt trip (STL) release and an auxiliary switch block: 2 auxiliary switches plus 1 trip alarm switch (HQ designation). That saves panel-builder wiring time — no separate add-on modules to snap in. The base switch is order code 3VA2225-6HL32-0AA0; the -0JH0 suffix adds the shunt trip and aux switches. No undervoltage release, no ground-fault monitoring, no communication module on this variant.