8537.20.21

HS code 8537.20.21 (Chapter 85 "Electrical machinery; electronics"; Heading 8537 "Boards, panels, consoles, desks, cabinets and other bases, equipped with two or more apparatus of heading 8535 or 8536, for electric control or the distribution of electricity, including those incorporating instruments or apparatus of chapter 90, and numerical control apparatus, other than switching apparatus of heading 8517"; Subheading 853720 "For a voltage exceeding 1,000 V") under the Philippines tariff schedule classifies "- - - Incorporating electrical instruments for breaking, connecting or protecting electrical circuits for a voltage of 66 kV or more".