Breaking capacity and fit
At 415 V this MCCB interrupts 121 kA — that's the fault-clearing capacity for a 100 A frame, so it handles high available fault current on the secondary side of a typical 1 000 kVA transformer without cascading upstream. The 86 mm depth and 140 mm width match the standard SENTRON 3VA2 footprint, meaning it drops into the same panel cutout as the 3VA2116-5JP32-0AE0 (a 160 A frame) — same mounting pattern, same bus-bar spacing. You can swap the 100 A for the 160 A version later if the load grows, as long as the feeder and bus bars are sized for it.
Integration notes
The ETU350 trip unit is field-configurable — no need to pull the breaker for rating changes.
Environmental range
Rated for operation from -25 °C to 70 °C ambient, with no derating needed across that span — the 100 A rating holds at every temperature from 40 °C through 70 °C.