ABB KDON800S Air Circuit Breaker

ABB KDON800S is a three‑phase, 800 A low‑voltage air circuit breaker from ABB’s KDON line, intended for use in K‑DON switchgear and other KDON‑family assemblies. This draw‑out, electrically operated unit (EO‑DO) is rated for 600 V AC and is built around an 800 A frame, with a current‑sensor range advertised from 15 A up to 800 A to accommodate a variety of relay/trip unit configurations. The KDON800S supports multiple trip‑unit options, including electro‑mechanical OD‑3 devices and modern solid‑state styles such as LSIG, which provides Long‑Time, Short‑Time, Instantaneous and Ground‑Fault protection; variants in LS, LI, LG, LSI, LIG or LSG families are commonly available to tailor protection schemes. This breaker is designed for use in distribution applications such as feeders and motor circuits within industrial power systems, delivering selective coordination within the K‑DON ecosystem and offering draw‑out mounting for serviceability.