What this 200 A SENTRON MCCB delivers
Its breaking capacity hits 121 kA at 240 V AC and 75.6 kA at 415 V AC — figures that cover most industrial distribution and motor branch circuits without needing an upstream current-limiting fuse.
Above that, derating kicks in: 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. The TM240 release is thermal-magnetic, so the thermal element tracks ambient; no separate adjustment needed.
This MCCB's interrupting rating varies sharply with system voltage: 121 kA at 240 V, 75.6 kA at 415 V, 25 kA at 440 V, and 11.9 kA at 690 V. At 415 V — common in European industrial grids — 75.6 kA is well above typical fault levels for a 200 A feeder.
Dimensions: 158 mm tall, 140 mm wide, 70 mm deep.