Used in solar energy and telecom, the working voltage includes AC220V, AC230V, AC240V, AC380V, AC400V, AC415V, DC600V,DC 800V, DC1000V, DC1100V, DC1200V, DC1500V, Using categories: AC-22B,DC-21B,DC-PV1,DC-PV2, rated current from 7.5 amperes to 32 amperes.