Westinghouse IL 33-DAH-1 Benutzerhandbuch

Westinghouse

Table of Contents

SAFETY PRECAUTIONS ................................................................................................................ 1

Kit Components List ......................................................................................................................... 2

Step 1: General Breaker Preparation ............................................................................................ 3
Step 2: Removing the Original Electromechanical Trip Units ........................................................ 3
Step 3: Preparing the Sensors ...................................................................................................... 4
Step 4: Installing the Sensors ........................................................................................................ 4
Step 5: Installing the Trip Unit Mounting Platform .......................................................................... 5
Step 6: Preparing the Trip Unit Assembly ...................................................................................... 6
Step 7: Installing the Trip Unit ........................................................................................................ 6
Step 8: Installing the Trip Finger .................................................................................................... 7
Step 9: Installing the Reset Arm Assembly ................................................................................... 7
Step 10: Installing the DTA Assembly ............................................................................................. 8
Step 11: Installing the 2-Point Terminal Block ................................................................................. 9
Step 12: Installing the Breaker Mounted CPT ................................................................................. 9
Step 13: Final Connection of the Harnesses and Wiring ............................................................... 11
Step 14: Installing the Auxiliary Switch .......................................................................................... 14
Step 15: Testing the Breaker ......................................................................................................... 15
Step 16: Mounting the Cell Harness ............................................................................................. 15
Step 17: Installing the Retrofitted Breaker in the Cell .................................................................... 16

Kit Parts List ................................................................................................................................... 17
Torque Values for General Mounting .............................................................................................. 21
Torque Values for Copper BUS Connectors ................................................................................... 21
INDEX ............................................................................................................................................ 25

IL 33-DAH-1

Digitrip Retrofit System for

Westinghouse DA-75 Breakers