What this code tells you
The ABB XT5HU325AFYN000XXX is a NEXT5H 400 molded case circuit breaker, 3-pole, fitted with an EKIP DIP LSI electronic trip unit rated IN250. The "FF" indicates fixed front terminals; "UL/C" confirms UL and CSA certification. This is the exact order code for a specific configuration — the trip unit, frame size, and terminal style are baked into the code, not field-selectable.
