Installing Arc Chutes - Siemens UL 489 Operating Instructions Manual

arc chutes
24.3.3 Installing
Frame size I and II
Frame size II and class C and frame size III
(Frame size II, class C shown)
Size
1
4 mm
8 Nm
71 lb-in
1 Insert arc chute, push cover back if necessary
2 Slide the cover into place
3 Check position of the 2 screens, class C only
4 Hook the cover carefully into place and fold it down
5 Insert the screw and tighten to the specified torque
24 – 7
3
2
5
2
1
71 lb-in
5
4
Size
4 mm
8 Nm