Number of Poles:1P, 1P+N, 2P, 3P, 3P+N, 4P ? Rated Current (A):1, 2, 3, 4, 6, 10, 16, 20,25, 32, 40,50, 63 ? Breaking Capacity (A):6000, 4500 ? Rated Voltage (V):230/400 ? Rated Frequency:50/60Hz ? Endurance:≥4000 ? Circumstance Temperature:-5+40 ? Electrical Life:no less than 6000 operations ? Mechanical Life:(O-C) no less than 20000 operations ? Protection Degree:IP20