Three poles, 3VA frame. The breaking capacity hits 330 kA at 240 V and stays at 242 kA up to 440 V; at 690 V it drops to 5.2 kA — that's the voltage you watch for selectivity coordination on high-impedance systems.
What's built in — and what isn't
No auxiliary switch on board; no ground-fault monitoring version. It has no communication function and no voltage trigger. The trip indicator is absent, so fault diagnostics rely on the breaker's handle position or downstream monitoring. Phase failure detection is included, which matters for motor protection on unbalanced supplies.
Panel fit — dimensions and environment
Width 105 mm, height 181 mm, depth 86 mm. Drops into the standard SENTRON 3VA mounting footprint; no rewiring needed if replacing a same-frame 3VA2220 unit.