Motor protection MCCB with ETU350M release
Breaking capacity reaches 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 17 kA at 690 V — figures that cover most industrial distribution and motor control center fault levels. The 100 A rating holds across ambient temperatures up to 50 °C, then derates to 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C.
Maximum power loss is 75 W, which should be factored into enclosure thermal calculations, especially in a multi-breaker lineup.