Its interrupting capacity hits 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V — numbers that put it squarely in high-fault-duty distribution, not branch-circuit light stuff. The shunt trip (STL) auxiliary release (order code 3VA9688-0BL30) lets you remote-trip it from a safety circuit or E-stop string, which is the usual reason someone specs this variant over a plain thermal-magnetic.
The 220 kA at 240 V is the headline figure, but the 154 kA at 415 V is the one that governs most industrial panels on 400 V class supplies.
Thermal derating — the real ampacity
At 55 °C it steps to 96 A, at 60 °C to 94 A, and at 65 °C to 92 A, bottoming at 90 A at 70 °C.
The case measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard SENTRON 3VA1 footprint that drops into the existing mounting base without panel rework. No auxiliary contacts are fitted as-delivered, so if you need a status feedback signal for the PLC, you'll add them separately.