ABB UC Series - Page 19

1ZSE 5492-124 en, Rev. 6 | Maintenance guide UCG 19
0.5–2 mm
20
14
14
Ø6.4
26
Fig. 5. Fixed and moving contacts clearance.
Copper part
Moving main
switching contact
Fixed main
switching contact
Fixed main
contact
Moving main
contact
Thickness 1 mm
Current bar
Board
Fig. 6. Transition contacts.