Product Description：

Suitable Rated Current : 300A Max.
＊Dielectric Strength For 60 Seconds：
    AC 500V Min.
＊Contact Resistance at 1A          DC： 5mΩMax.
＊Insulation Resistance At 500V DC：
   100 MΩ Min.
＊Molded Parts : Flame Retarding,
                           Phenolic Laminate
＊Contacts : steel, anti-conosion