The ABB E2N800 D‑LSI 3‑pole WHR Air Circuit Breaker is a low‑voltage protective device from ABB’s Emax E2N series designed for three‑phase industrial and commercial power distribution systems. It features an electronic D‑LSI trip unit that provides coordinated protection against overload (L), short‑time faults (S), instantaneous short circuits (I), and ground faults (G). The breaker is configured in a withdrawable horizontal rear (WHR) format, allowing it to be safely extracted from a switchgear frame for maintenance or service without disconnecting the main busbars. This model is suitable as a main distribution breaker or feeder breaker in electrical switchgear and panel installations where reliable, adjustable protection and easy maintenance are required.
