GE AK-50 g

These instructions do not cover all details or variations in equipment nor do they provide for every possible

contingency that may be met in connection with installation, operation, or maintenance. Should further

information be desired or should particular problems arise that are not covered sufficiently for the purchaser’s

purposes, the matter should be referred to the GE Company.

gGE Industrial Systems

General Electric Company

41 Woodford Ave., Plainville, CT 06062

Contents

Main INTRODUCTION g For GE Types AK-50, AKU-50, AKS-50, AKT-50, AK-75, and AK-100 Low-Voltage Power Circuit Breakers TABLE OF CONTENTS LIST OF FIGURES SECTION 1. GENERAL INFORMATION SECTION 2. BEFORE INSTALLATION SECTION 3. FRONT FRAME BREAKER Relocating and Remounting the W and X Relays Installing the Flux Shifter Assembly Page Installing the Trip Paddle Adjusting the Flux Shifter Installing the Trip Unit Mounting Bracket Page SECTION 4. BACK FRAME Crossbar Modification Removing the Existing Trip Devices Installing the Phase Sensors Page SECTION 5. INSTALLING THE TRIP UNIT Configuring the Trip Unit SECTION 6 FOUR-WIRE GROUND FAULT OPTION Installing the Fourth-Wire Disconnect Page Page Installing the Neutral Sensor Page SECTION 7. EQUIPMENT Installing Mounting Brackets Page SECTION 8. TESTING AND TROUBLE- SHOOTING Testing Trouble-Shooting Page Page Page Page Page Page Page Page g