What this 3VA2 MCCB brings to the panel
The 3VA2225-6KP32-0AH0: The interrupting ratings are the headline here: 242 kA at 240 V and 187 kA at 415 V. That's high-fault capacity — think large transformer secondaries, industrial switchgear, or utility tie points where the available fault current is well above what a standard 65 kA or 100 kA breaker can handle. At 690 V it still holds 4.5 kA, which covers most 690 V motor-control center applications. Physically it's 86 mm deep, 105 mm wide, 181 mm tall — a standard 3-pole MCCB footprint that drops into a SENTRON panelboard or a DIN-rail mounting base without re-drilling gland plates.
Thermal derating — what the 250 A number really means
The 250 A continuous rating holds flat from 40 °C up to 50 °C. That's useful for a panel sitting in a warm electrical room or near a process line where ambient hits 45–50 °C. Above 50 °C it starts to taper: 238 A at 55 °C, 225 A at 60 °C, 213 A at 65 °C, 200 A at 70 °C (–). If your enclosure runs hot — say a poorly ventilated MCC bucket near a furnace — you need to size the breaker for the derated figure, not the nameplate.
Built-in communication and auxiliary contacts
This variant ships with communication function onboard and a 2-auxiliary-switch plus 1-trip-alarm-switch HQ configuration. That means you get remote status feedback (open/closed/tripped) without adding an external accessory module — handy for a PLC input card or a SCADA digital point. The trip indicator gives a local mechanical flag so the tech on the floor can see what happened before they grab a meter.