GE AK-50 installation instructions Installing the Trip Unit, Configuring the Trip Unit

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SECTION 5. INSTALLING THE TRIP UNIT

1.Remove the large screw from the rear of the trip unit. Place the trip unit in position on the mount- ing plate, with the 50-pin connector aligned with the opening in the plate. Secure with the large screw, as shown in Figure 22.

2.Insert the 50-pin female connector on the wiring harness into the trip unit connector through the rear of the mounting plate. Secure to the mount- ing plate with the two small screws provided, as shown in Figure 22.

3.Place the trip unit and mounting plate in position on the support bracket mounted on the breaker. Secure with the three screws, lock washers, and flat washers through the holes in the mounting plate into the tapped holes in the bracket, as shown in Figure 23.

Configuring the Trip Unit

See DEH-40034 for detailed instructions for setting up ProTrip trip units.

Trip Unit

Mounting

Plate

Trip

Unit

Trip Unit

Mounting

Screw

Wiring

Harness

Connector

Figure 22. Attaching the trip unit to the mounting plate.

Figure 23. Trip unit mounted on the breaker.

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Contents Introduction Table of Contents List of Figures General Information Before InstallationRelocating and Remounting the W and X Relays Front Frame Breaker ConversionBreakers with EC or Power Sensor Trip Systems Installing the Flux Shifter AssemblyAKU-50 Breakers Only Breakers with a Side BracketInstalling the Trip Paddle Adjusting the Flux ShifterBreakers with ECS or SST Trip Systems Installing the Trip Unit Mounting Bracket EC or Power Sensor Trip SystemECS or SST Trip System Trip unit mounting bracket attached to the mounting Plate Crossbar Modification Back Frame ConversionRemoving the Existing Trip Devices AK-50 & AKS-50 Breakers with SST Trip SystemsAK-75 & AK-100 Breakers with SST Trip Systems AK-50 & AKS-50 Breakers Installing the Phase SensorsAK-75 & AK-100 Breakers Phase sensor installation on AK-75 & AK-100 breakersConfiguring the Trip Unit Installing the Trip UnitFOUR-WIRE Ground Fault Option Installing the Fourth-Wire DisconnectAK-50 & AKS-50 Stationary Breakers AK-75 & AK-100 Draw-Out Breakers AK-50 & AKS-50 Draw-Out BreakersAK-75 & AK-100 back frame conversion Outline of the neutral sensor for AK-50 breakers Installing the Neutral SensorOutline of the neutral sensor for AK-75 and AK-100 breakers Equipment Conversion Installing Mounting BracketsFourth-wire disconnect for AKD-5 & AKD-6 Nuisance Tripping on Ground Fault-Equipped Breakers Testing and TROUBLE- ShootingTesting Trouble-ShootingAK-50 Page Page Appendix 1. Drill Template for Flux Shifter Mounting Appendix Drill TemplatesPage Page Page Page GE Industrial Systems