It's a 3-pole frame designed for starter protection — meaning it's sized to sit ahead of a motor starter or as a feeder breaker in a distribution panel, not as a branch device protecting a final load directly. The interrupting capacity drops as voltage climbs: 220 kA at 240 V, 154 kA at 415 V, 75.6 kA at 440 V, 30 kA at 500 V, and 4.5 kA at 690 V — so the application voltage determines whether this frame has headroom for high-fault installations or is tight for a 690 V bus.
Thermal derating — the real continuous current
Above that it derates: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, 176 A at 70 °C. Plan the load accordingly.
The 3VA1220-6MH32-0AA0 measures 105 mm wide, 158 mm high, and 70 mm deep — a standard 3-pole MCCB footprint that drops into a SENTRON distribution board or a DIN-rail adapter plate.