What this XT7H 800 A MCCB carries
The "LS/I" designation means it provides long-time (L) and short-time (S) protection against overloads and delayed short-circuits, plus instantaneous (I) protection for high faults — a selective coordination profile for downstream feeders. The "F F" in the description flags fixed front terminals, and the UL suffix confirms UL 489 listing for North American panel builds.
The 800 A frame at 3-pole is sized for a main feeder or large motor branch in a 480 V / 600 V industrial panel. The EKIP DIP LS/I trip unit lets you dial in the long-time pickup and delay, short-time pickup and delay, and instantaneous threshold — so you can coordinate selectivity with downstream 100 A or 200 A MCCBs without nuisance tripping. Fixed front terminals keep the wiring pattern predictable for panel builders: no plug-in base to source separately.