3
LIST OF FIGURES
1. Removing the insulated housing on a K-225, K-600, or K-800 breaker. ......................................................... 5
2. Trip unit housing removed, 225–800 A breakers. ............................................................................................ 5
3. Drilling out the screws holding the trip units to the housing, 225–800 A breakers. ......................................... 6
4. Bolts to be removed from the load stabs, 225–800 A breakers....................................................................... 6
5. Removing the draw-out contact block on a K-1600 breaker............................................................................ 6
6. Removing the trip unit housings on a K-1600 breaker..................................................................................... 7
7. Contact arm connections, 1600 A breaker....................................................................................................... 7
8. Electromechanical trip unit disassembly, 1600 A breaker. .............................................................................. 7
9. Trip unit housing, 1600 A breaker. ................................................................................................................... 8
10. Installing shims on red frame 225–800 A breakers. ........................................................................................ 9
11. Copper load terminal installed, 225–800 A breakers. ...................................................................................... 9
12. Installing a CT assembly., 225–800 A breakers. ............................................................................................. 9
13. Converted trip unit housing, 225–800 A breakers............................................................................................ 9
14. Installed CT assemblies, 225–800 A breakers. ............................................................................................. 10
15. Tightening the CT assembly bolts, 225–800 A breakers. .............................................................................. 10
16. Terminal assembly for K-1600 red frame breaker. ........................................................................................ 11
17. CT assembly for K-1600 red frame breaker................................................................................................... 11
18. C-shaped barrier modification, 1600 A breakers. .......................................................................................... 12
19.
Reassembled 1600 A breaker........................................................................................................................ 12
20.
Terminal
assembly,
1600 A black frame breakers......................................................................................... 13
21. CT assembly, 1600 A black frame breakers. ................................................................................................. 13
22. Flux shifter installation, 225–800 A breakers. ................................................................................................ 14
23. Flux shifter installation, 1600 A breakers. ...................................................................................................... 14
24.
Reset
linkage assembly. ................................................................................................................................ 14
25.
Flux
shifter adjustment. .................................................................................................................................. 15
26.
Removing
the
top cover screws. .................................................................................................................... 16
27. Trip unit bracket and insulating barrier assembly .......................................................................................... 16
28. Trip unit bracket attached to the breaker. ...................................................................................................... 16
29. Attaching the trip unit to the mounting plate................................................................................................... 17
30. Harness connector attached to the trip unit. .................................................................................................. 17
31. Trip unit mounted on the breaker. .................................................................................................................. 17
32. Optional trip unit mounting position................................................................................................................ 17
33. Trip unit wiring harness installation. ............................................................................................................... 18
34. Neutral sensor outline for K-225 and K-600 breakers. .................................................................................. 19
35. Neutral sensor outline for K-800 and K-1600 breakers. ................................................................................ 20
36. Cabling diagram for ProTrip™ trip units with ground fault on four-wire loads. .............................................. 23