Breaking capacity across voltages — what the numbers mean
This breaker delivers 242 kA at 240 V, 187 kA at both 415 V and 440 V, 121 kA at 500 V, and 3.7 kA at 690 V.
Ground-fault and communication built in
The 3VA2140-6KQ46-0AA0 includes ground-fault monitoring via summation current formation on L + N conductors — it detects leakage by comparing the vector sum of phase and neutral currents, so it catches ground faults without a separate GFCI module. It also has a communication function, which means it can report status and trip events over a bus, saving a trip to the panel for diagnostics.