GSZ4 series 2P DC contactor is suitable for DC-1, DC-3, DC-5 use class, rated working voltage to 750V, rated insulation voltage of 1000V, rated working voltage to 400A DC circuit, can be connected and disconnected DC motor and other DC load. It is mainly used in photovoltaic power generation, rail transit, oil drilling rig, metallurgy, steel， ship and other industries.
