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SS4 1600A Static Transfer Switch One-Line Diagram

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This document provides a one-line diagram of the ABB SS4 1600A Static Transfer Switch (STS), detailing the power stage, interlock logic, and user interface board (UIB) connections. It includes component labeling for input breakers, bypass breakers, load breakers, alarm relays, communication ports, and OCPD recommendations for upstream protection.

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