What this 4-pole 160 A MCCB covers
Rated insulation voltage sits at 800 V AC, and the interrupting ratings climb to 75.6 kA at 240 V and 52.5 kA at 415 V. At 440 V it still holds 32 kA, dropping to 11.9 kA at 500 V and 690 V.
At 55 °C it derates to 158 A, then 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. Plan your load margin accordingly; this breaker will carry 160 A continuous in a 40 °C environment without complaint.
Footprint and panel integration
Depth is 70 mm, width 101.6 mm, height 130 mm. That 4-inch-wide body is standard for a 160 A 4-pole MCCB in the SENTRON 3VA platform — it fits the same cutout and bus-bar spacing as other 3VA frame sizes. Optional motor drive is available as a field-addable accessory, letting you motorize the breaker for remote trip-and-reset in unattended gear. The N-conductor protection is set to 50% of the phase rating, which is the typical spec for a 4-pole breaker on a 3-phase + N system where the neutral is not fully rated.