What this MCCB carries and where it fits
The Siemens 3VA2116-8HM46-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 160 A continuous current, flat across the full 40 °C to 70 °C ambient range — no derating curve to chase. Four poles, line-protection design, with ground-fault monitoring via summation current formation on L + N. Breaking capacity hits 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 52.5 kA at 690 V. Rated insulation voltage is 800 V. The 86 mm depth and 140 mm width fit standard panel layouts; the 181 mm height clears most enclosure gland plates without a riser.
Ground-fault monitoring detail
The ground-fault monitoring uses summation current formation on L + N, meaning it compares the vector sum of phase and neutral currents to detect leakage. No separate measurement function or undervoltage release is built in — this is a straight line-protection MCCB with integrated GF protection, not a multi-function trip unit.