... breaking capacity, tripping rapidly, rail mounting, casing and components using in high flame retardant and impact-resistant plastic material4.It has ... 400V circuit overload, short-circuit protection5.As well as in normal circumstances frequently on-off electrical equipment and lighting circuit ... :1, poles : single-pole, two, three, four pole.2, rated current : 1A, 3A, 6A, 10A, 16A, 20A, 25A, 32A, 40A ...