The Siemens 3VA2116-7HM46-0AA0 is a SENTRON molded case circuit breaker rated for 160 A continuous current with a 4-pole configuration. Its adjustable thermal-magnetic trip unit covers a range from 240 A minimum to 1 600 A maximum, giving you flexibility to tune the overload and short-circuit protection to the actual load rather than swapping breakers.
Breaking capacity and selectivity
This MCCB delivers 330 kA at 240 VAC, dropping to 242 kA at 415 V and 440 V, then 187 kA at 500 V, and 3.7 kA at 690 V. That steep curve at 690 V means you need to check the available fault current at that voltage level — the 3.7 kA figure is the limit, not a typo. For typical 400 V class panels, the 242 kA rating gives plenty of headroom for high-fault installations like transformer secondaries or generator paralleling.
Thermal performance across temperature
The continuous current rating holds flat at 160 A from 40 °C all the way up to 70 °C ambient — no derating needed across that range. That's unusual for an MCCB; most start dropping above 40 °C. If your panel runs hot near the top of a sealed enclosure, this breaker keeps its full 160 A capacity without recalculating the wire sizes.
Ground-fault monitoring and ratings
It includes ground-fault monitoring via summation current formation on the L + N conductors — useful for detecting leakage without a separate GFCI module. Rated insulation voltage is 800 V, and maximum power loss runs 25.5 W, which matters for enclosure heat calculations if you're stacking several breakers in a tight row.