The interrupting capacity is the headline: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. The adjustable current range is 300 A to 1 500 A — that's the magnetic trip setting, not the continuous rating. The continuous rating is fixed at 100 A; the adjustable range sets the short-circuit and instantaneous pickup level, so you can coordinate with downstream devices without swapping the breaker.
That gives you remote status indication for the main contacts, a trip signal, and an electrical alarm contact — enough for most PLC or SCADA interfaces without adding external relays. A shunt trip release (STL) is also built in, allowing remote tripping via a control voltage. The supplied basic switch is order code 3VA21107MS360AA0 — that's the internal switching mechanism. If you ever need to replace just the switch core (for example, after a fault), that's the service part number.
What to watch for
No undervoltage release, no communication module, no phase-failure detection, no ground-fault monitoring — this is a basic starter-protection MCCB. If your application requires remote monitoring or ground-fault protection, you'll need a different variant (e.g., the 3VA2 with communication option or the 3VA1 with ground-fault module). Maximum power loss is 10 W — negligible for most panels, but worth noting if you're packing many breakers into a sealed enclosure with limited ventilation.