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Table 1. International Symbols
Symbol Meaning Symbol Meaning
Alternating current Earth ground
Direct current Fuse
c
Alternating or direct current Conforms to European Union directives
Refer to the manual for information about
this feature.
Conforms to relevant Canadian
Standards Association directives
Battery
T
Double insulated
Meets Underwriters’ Laboratories safety
requirements
Inspected and licensed by TÜV Product
Services
CAT III
Overvoltage (Installation) Category III, Pollution Degree 2 per IEC1010-1 refers to the level of Impulse
Withstand Voltage protection provided. Typical locations include; Mains, wall outlets, main distribution
levels connected closer to the supply system but less than the primary supply system (CAT IV).