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9.6. Check the varistors
Visually assess the varistors. Varistors are located on the filter PCB,
and can be of any colour (e.g., red, yellow, blue)
Damaged varistor usually shows visible traces of physical damage such
as tearing, cracks, delamination.
Example of a damaged varistor:
Varistor
Varistor
Summary of Contents for 4VI515 Series
Page 3: ... 3 1 HOB FEATURES AND COMPONENTS ...
Page 13: ... 13 2 single coils 6 dual coils 5 single coils ...
Page 18: ... 18 9 2 Check if neutral conductor for L1 phase is connected correctly ...
Page 19: ... 19 9 3 Check if L1 phase is connected correctly ...
Page 20: ... 20 9 4 Check if L2 phase is connected correctly ...
Page 21: ... 21 9 5 Check if coils are connected correctly ...
