GE Multilin MIWII Instruction Manual page 162

10.4 CLEANING INSTRUCTIONS 10 INSTALLATION AND MAINTENANCE
10.4CLEANING INSTRUCTIONS
In case of detecting accumulated pollution, the unit can be cleaned with a clean cloth, either dry or slightly dampened with
a cleaner containing alcohol.
Abrasive cleaners must be avoided, as these can damage the metallic surface or the electrical connection elements.
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10-4 MIWII Directional Power Protection System GEK-113308