The date code of the comb busbars is printed on the label on the box.
The format of the date code is: RN-YYYY-WwwD
RN - code of the factory
YYYY - year of production
Www - week of production
D - day of production
The format of the date code is: RN-YYYY-WwwD
RN - code of the factory
YYYY - year of production
Www - week of production
D - day of production