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AssigneeTanaka Kikinzoku Kogyo K.K.
InventorsSachihiro Nishide, Tetsuya Nakamura, Nobuhito Yanagihara
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A DC high-voltage relay with at least one contact pair including a movable contact and a fixed contact, the contact pair having a contact force and/or an opening force of 100 gf or more, having a rated voltage of 48 V or more, the movable contact and/or the fixed contact includes a Ag oxide-based contact material. Metal components contain at least one metal M essentially containing Zn, and a balance being Ag and inevitable impurity metals, and the contact material has a content of the metal M of 0.2% by mass or more and 8% by mass or less based on a total mass. The contact material has a material structure in which one or more oxides of the metal M having an average particle size of 0.01 μm or more and 0.4 μm or less are dispersed in a matrix including Ag or a Ag alloy.
A DC high-voltage relay comprising at least one contact pair comprising a movable contact and a fixed contact, the contact pair having a contact force and/or an opening force of 100 gf or more, the DC high-voltage relay having a rated voltage of 48 V or more, wherein
A contact material for a DC high-voltage relay, the contact material being a Ag oxide-based contact material for forming at least a surface of a movable contact and/or a fixed contact of a DC high-voltage relay, the DC high-voltage relay having a rated voltage of 48 V or more, and a contact force and/or an opening force of 100 gf or more at a contact pair, wherein
Dependencies are inferred from the claim text.