MCCB for 160 A feeder protection
Breaking capacity hits 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 4.25 kA at 690 V.
Thermal derating and auxiliary wiring
Rated current holds at 160 A from 40 °C up to 50 °C, then derates to 154 A at 55 °C, 148 A at 60 °C, 142 A at 65 °C, and 136 A at 70 °C. For a 160 A feeder in a warm enclosure, the 50 °C ceiling is the practical limit before you lose capacity. The undervoltage release (UVR) is integrated — order code 3VA9608-0BB25 for the release itself. Max power loss is 28 W, so plan for heat dissipation in the panel.
Dimensions are 181 mm height, 105 mm width, 86 mm depth.