Ratings that decide fit
The 3VA2225-5HN32-0JC0: Continuous current is 250 A at 40 °C ambient, and it holds that rating all the way up to 50 °C. Above that it derates: 241 A at 55 °C, 232 A at 60 °C, 222 A at 65 °C, 213 A at 70 °C. If your panel ambient runs hot (say, a packed enclosure with drives), that derating curve is what governs the actual load you can hang on this breaker — not the 250 A nameplate. Interrupting capacity at 690 V AC is only 4.5 kA, so if your system has a 690 V line with high fault current, this breaker won't clear it; the 500 V rating (75.6 kA) is more typical for industrial 480 V panels. Power loss is 48 W maximum — that's heat that stays inside the enclosure, so factor it into your thermal budget if the panel is tightly sealed.
Built-in accessories and what they mean for wiring
This variant comes with a shunt trip (STL) release and two auxiliary switches (HQ). The shunt trip lets you remotely trip the breaker via a control signal — useful for emergency-stop circuits or interlocking with a fire-alarm panel. The two auxiliary switches provide status feedback (open/closed) to a PLC or indicator lamp. No undervoltage release is fitted, so if you need undervoltage protection (breaker drops out when line voltage falls below a threshold), this isn't the variant. No communication module either — it's a standalone breaker, not a networked power monitor. The basic switch order code is 3VA2225-5HN32-0AA0, which is the core breaker without the shunt trip and aux switches; this -0JC0 suffix adds them.