Siemens 3VM1116-5ED42-0AA0 — 160 A SENTRON MCCB, 4-Pole Line Protection
The Siemens 3VM1116-5ED42-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 160 A continuous current at 40 °C, with a 4-pole configuration and a TM210 thermal-magnetic overcurrent release. It's a line-protection device — no communication function, no ground-fault monitoring, no N-conductor protection. The interrupting capacity tells the story: 187 kA at 240 V, 121 kA at 415 V, 76 kA at 440 V, and 17 kA at 500 V. That's a serious fault-current rating for a 160 A frame, meaning it can handle high available short-circuit currents without cascading upstream. The insulation voltage is rated 690 V, and it handles DC up to 500 V. Power loss maxes out at 38 W.
Sizing and Thermal Performance
The continuous current rating holds at 160 A from 40 °C through 50 °C, then derates gradually: 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. That's a shallow derate curve — you lose only 10 A over a 30 °C rise. The TM210 release has an adjustable response value at 160 A minimum. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. Front protection is IP40 — fine for a panel interior, but not for washdown environments.
Physical Fit and Panel Integration
Dimensions: 130 mm height, 101.6 mm width, 70 mm depth. That's a 4-inch wide footprint — standard for a 4-pole MCCB in this class. It mounts in a panel or enclosure; no DIN-rail clip on this frame size. The IP40 front rating means it's suitable for dead-front panels where the operator interface is behind a door. No motor drive option, so it's manually operated only.