Line-up breaker with ETU860 intelligence
The Siemens 3VA2110-0KQ46-0AA0 is a 4-pole SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current and a 440 kA interrupting capacity at 415 V — that SCCR headroom handles high-fault utility feeds or transformer secondaries without cascading upstream breakers.
Breaking capacity that matters at 415 V
At 415 V this breaker clears 440 kA symmetrical — that is the figure that decides whether it holds coordination with downstream feeders in a steel mill or large industrial switchboard.
Panel fit and thermal profile
Power loss is 7.7 W maximum, manageable for dense panel layouts. Dimensions: 181 mm height, 140 mm width, 86 mm depth.
Ground-fault and N-conductor protection
The ground-fault monitoring uses summation current formation on L + N — it sees the vector sum, not a separate sensor. The N-conductor protection is adjustable from OFF to 20–160 % of the phase setting, which matters for 4-wire systems where the neutral can carry harmonic content.