FN3-10 / 400A 630A FN3-10R / 400A 630A FN3-12, FN3-12R, FN3-12R / S high-voltage load open voltage electrical apparatus in the relationship between the families. For AC 50Hz, 6kV or 12kV network, as breaking and closing load and over load current purposes, it can also be used for breaking and closing load long-term, no-load transformer and capacitor of the switch. RN3 type fuse with load switch (FN3-12, FN3-12R / S) can be cut short, for protection switching purposes. The load switch can be equipped with working conditions CS3 and CS2 type manual operating mechanism of the load 3 indoor spaces, the air relative humidity less than 90% (when the temperature; 1, no more than 1000 meters above sea level; 2, ambient air temperature not higher than + 40 ℃ and no less than -10 ℃: switch applies to the following work environment to + 25 ℃ when); 4, non-conductive dust environment; 5, no damage to the metal and dielectric objects of corrosive gases; 6, no severe vibration and impact areas; 7, no danger of combustion and explosive environments in. The Company's solemn commitment, if customers are not satisfied, we will serve in the end. We have confidence in our products, quality bags with one year (including use, return, replacement) manufactured products are used export waterproof wooden box, the box with a perfect factory descriptions and product information. Products factory have all been carefully debugging experiment, users can be assured.