SENTRON 3VM1116-4EE42-0AA0 — 160 A MCCB with TM220 Release
The Siemens 3VM1116-4EE42-0AA0 is a SENTRON molded case circuit breaker rated for line protection, carrying a continuous current of 160 A up to 50 °C before the thermal curve begins to bite — at 55 °C it's still good for 158 A, and it holds 150 A all the way to 70 °C. That's a shallow derate slope, meaning you can pack it into a warm panel without losing much headroom. Four poles, TM220 thermal-magnetic release with an adjustable li of 1600 A for the magnetic trip. Rated insulation voltage Ui of 690 V, max DC operational voltage of 500 V.
Sizing and Thermal Reality Check
At 55 °C you lose 2 A; at 70 °C you're at 150 A. Dimensions are 101.6 mm wide by 130 mm tall by 70 mm deep — a 4-pole MCCB that fits standard DIN-rail or screw-mount patterns.