WGBU Earth Leakage Relay Connection Diagram

This document provides the connection diagram and technical specifications for the ABB WGBU earth leakage relay, including wiring layouts for manual and automatic reset modes, tripping via emission coil or undervoltage coil, and supply voltage options of 110/230 V a.c. It details selectable sensitivity (0.03A to 3A), tripping delay (0.02s to 1s), output relay contact states, and LED fault indication for residual current detection in TRMS.