The 3-pole configuration and UL listing make it a direct fit for North American panelboards and switchgear assemblies where a 400 A frame with LSI protection is specified.
What the EKIP DIP LSI trip unit means for selectivity
The EKIP DIP LSI electronic trip provides independent adjustment of Long-time (L), Short-time (S), and Instantaneous (I) protection curves. The I setting handles the high-current short-circuit cutoff.
Deployment context
This MCCB mounts into standard ABB XT5 drawout or fixed-mount chassis, common in 400 A switchboards and motor control centers. The 3-pole UL listing means it passes UL 489 testing for branch-circuit protection, so it can serve as the main disconnect or feeder breaker in a UL 508A industrial control panel.