1. Basic parameters of the main circuit a. Nominal insulation voltage 660V; b. Rated operational circuit respectively 25,36,93A; c. See chart 1 for the rated setting current and thermal element setting current adjustment.
2. Auxiliary circuit a. One pair of normally open and normally close contact terminals with electric insulation respectively; b. Nominal insulation voltage 500V; c. Rated frequency 50~60Hz; d. See chart 2 for the application class, rated operational voltage, agree heating current and rated operational circuit. |