CLASSIFICATION OF A BATTERY BACKUP SYSTEM



The item concerned is referrd to as a Battery Backup System (BBS) 6102, part number 20/BFM901292/895.

The BBS 6102 is an electrically outfitted cabinet. It is used to house and recharge backup batteries and to supply (negative) -48 volt DC power to outdoor radio base stations and remote radio units in the event of AC mains failure. 

The BBS 6102 is powered by AC current from the grid. The BBS 6102 houses power supply units / rectifiers that are responsible for converting AC to DC power, recharging the internal batteries and powering the connected remote radio units and radio base stations. 

The applicable subheading for the Battery Backup System (BBS) 6102 will be 8504.40.

Source: https://rulings.cbp.gov/index.asp,  December 19, 2017 (N292646)

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