ABB ZTS Service Entrance ATS Dimensional Drawing

This document provides detailed dimensional drawings, mounting hole specifications, and component layouts for ABB ZTS series service entrance automatic transfer switches (ATS) rated 225-400A, available in NEMA 3R, 12, 4, and 4X enclosures for 3 and 4 pole configurations. It includes front, side, and back views, circuit breaker details for XT4 and XT5 models, wire bending space requirements, seismic mounting instructions, and cable connection ranges for both 225-250A and 400A units.