The 3-pole design with 800 V rated insulation voltage suits it for 400 V class distribution panels feeding motor control centers or branch circuits. Breaking capacity is the standout: 440 kA at 240 V AC, 330 kA at 415 V and 440 V, 220 kA at 500 V, and still 53 kA at 690 V. That means it handles high-fault scenarios upstream near the transformer or in industrial mains without cascading to downstream gear. For a panel builder, this avoids needing a current-limiting upstream breaker — the 3VA2140-8KP32-0AA0 clears the fault itself.
Communication and integration
This MCCB includes a communication function, which means it can report status and trip events to a higher-level control system — useful for a plant-wide power monitoring scheme. The ETU850 release offers adjustable time-current curves (tr min 0.5 s, tr max 25 s; tsd max 0.5 s) so you can coordinate selectivity with downstream breakers without sacrificing speed on hard faults.