The Siemens SENTRON 3VA1116-5GE42-0AF0 is a 160 A, 4-pole molded case circuit breaker (MCCB) designed for line protection. It carries a TM220 thermal-magnetic release, meaning it handles overloads thermally and short-circuits magnetically — the standard for feeder and distribution protection in commercial and industrial panels. The interrupting ratings are substantial: 187 kA at 240 V AC, 121 kA at 415 V AC, and 75.6 kA at 440 V AC, with a rated insulation voltage of 800 V. This is a high-interrupting-capacity frame for high-fault locations like substation mains or large switchboards.
Interrupting capacity and thermal derating
At 500 V and 690 V the interrupting rating drops to 17 kA — still adequate for most 480/600 V class distribution, but worth checking if your fault current exceeds that at the higher voltage. The breaker is rated 160 A continuously up to 50 °C ambient; above that it derates to 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. If your panel runs hot, the 160 A frame may need to be applied at 150 A or lower to avoid nuisance tripping.
Physical fit and auxiliary options
The breaker measures 130 mm high, 101.6 mm wide, and 70 mm deep — a standard 4-pole MCCB footprint that mounts directly on a DIN rail or panel plate. It ships with one auxiliary switch and one trip alarm switch (HQ type), so you get remote status indication without ordering a separate accessory. There is no undervoltage release, no ground-fault monitoring, and no communication function built in; those are add-on modules if needed.