The ABB XT7HU312EYFF000XXX is an XT7H-series air circuit breaker rated for a 1200 A frame, fitted with an EKIP G Touch LSIG protection unit in a 3-pole fixed configuration with UL certification.
What the protection package means
The EKIP G Touch LSIG trip unit provides long-time (L), short-time (S), instantaneous (I), and ground-fault (G) protection curves, all configurable through the touchscreen interface without needing external software or programming tools. This is the full-selectivity package for a 1200 A main breaker — the LSIG combination lets you coordinate downstream breakers while maintaining ground-fault protection on the feeder, which is critical for service-entrance or main-switchboard applications.
Deployment context
As a 3-pole fixed-mount air circuit breaker in the XT7H frame, it bolts into a standard switchboard or drawout cradle (drawout version uses a different order code). The UL listing means it is accepted for US and Canadian installations without additional agency review.