24 – 6
24.3.1 Removing arc chutes
A Frame size I and II with flush arc chute
B Frame size II, class C and frame size III
1 Loosen screw by approx. 15 mm; do not remove it;
FS III and FS II, class C:
remove screw completely
2 Push the cover back;
FS III and FS II, class C: lift the cover carefully
3 Remove the cover
4 Take out the arc chute
24.3.2 Visual inspection
In the case of heavy wear (burnout on arc splitter plates), replace the circuit breaker.
WARNING
Damage to arc chute components.
Mishandling may lead to broken insulation plates of the arc chute housing, and compromised insulation capacity.
Do not stand arc chutes up, when placing them on a table, or any other surface outside of the circuit breaker. The arc chutes should be
placed on their side to prevent breakage of the insulation plates.
1
2
4
A
PH 2
FS II, class C shown
To Next Page
Loading...
