Normal working conditions Ambient temperature of-5C~+40℃，average does not exceed 35C within 24H；The alitude of the installation site altitude does not exceed 2000m. Specifications

■Rated current：1A，2A，3A，4A，6A，10A，16A，20A，25A，32A，40A，50A，63A；
■Instantaneous release:B type（3～5）In，C type（5～10）ln，D type（10~16）ln；
■Poles:a.single pole，b.with two protect breakers，c.with three protect breakers，d.with four protect breakers；
■Instantaneous release:B type（3-5）In，C type（5~10）in，D type（10~16）ln；
■Main technical parameters；
■Rated capacity of short-circuit breaking（Table 1，table 2）；
■Mechanical and electrical life：
口Electrical life:not less than 4000
口Mechanical life:not less than 10000.