ABB Zenith ZTS T-Series ATS Enclosure Drawing (50C-1087)

This is a detailed engineering drawing set (3 sheets) for an ABB Zenith ZTS T-Series automatic transfer switch enclosure, rated 800-1200A and NEMA 4X. It provides critical dimensions, mounting specifications, lug assembly options (mechanical and compression), seismic mounting hardware requirements, and internal component layouts for the cabinet.