ABB SACE Emax 2 E6.2, Instruction Handbook Manual

Page: 60 / 72

60 INSTRUCTION HANDBOOK
6.13 PHASE 13 – ARCHING CHAMBERS
Actions to be performed
Tools
Torx key
No. 30
Cross screwdriver
Flat screwdriver
225
By means of the torx key unscrew the 2 screws
fixing the arching chamber to the pole. *
228
Manually remove the arc quenching and
the plate from the arching chamber main
structure; operation to be repeated on the
other side of the arching chamber main
structure.
227
By means of the flat screwdriver unhook the 2
appendices fixing the arc quenching and the
plate to the arching chamber main structure.
226
Manually remove the arching chamber.
* 2 addititional screws must be unscrewed on circuit breakers
in IEC version with H breaking capacity and on circuit breakers
in UL version (red circles indicate position of the 2 additional
screws).