5F-500V High Voltage Quick Break Ceramic Tube Fuse.bussmann class j fast acting fuse

　　The 5F-500V high-voltage ceramic tube fuse belongs to the fast fuse type fuse tube, with a rated voltage of 500V for high voltage. This series has a wide range of current of 0.1A~20A and high sectioning capacity 10KA@125V AC (200mA~10A) 35A@250V AC (200mA~1A) 100A@250V AC (1.25A~3.5A) 200A@250V AC (4A~30A) 1KA@500V AC (4A~30A). The size of 5F-500V high-voltage quick break ceramic tube fuse is 21.5 * 5.6 (with lead) and 20 * 5.2 (without lead). The material composition of this series of products is as follows: copper caps are made of brass nickel plated, ceramic tubes, fuses are made of alloy, explosion-proof sand is made of quartz sand, and leads are made of tinned copper wire.

　　The characteristics of 5F-500V high-voltage quick break ceramic tube fuse include: pin tensile strength of 5 N 10 ± 1 second; The pin thrust strength is 2N10 ± 1 second; The welding method can be wave soldering or Luotie soldering, with a wave soldering temperature of 260 ℃, ≤ 3S; The soldering temperature of the soldering iron is 350 ± 10 ℃, ≤ 3S; The welding heat resistance of this product is: when using wave soldering, the temperature is 260 ℃ and the welding resistance time is 10S, while when using soldering iron, the welding resistance temperature is 350 ± 10 ℃ and the welding resistance time is 5S.

　　5F-500V high-voltage quick break ceramic tube fuses are tested at an ambient temperature of 25 ± 5 ℃, and their load capacity is that when the fuse passes 100% of the rated current, it should not blow within 4 hours. The fuse has a breaking capacity of 500 amperes using a 500 volt AC power supply (5.500 corresponds to a rated current In range of 200mA~20A). The temperature rise test result is 1.0 times the rated current, when the temperature is stable (4 measurements within 5 minutes, and the difference between each measurement and the average value does not exceed 2 ℃). The temperature rise of any part of the fuse shall not exceed 75 ℃, and the ambient temperature shall be 25 ± 5 ℃.

　　The fusing time limit of 5F-500V high-voltage quick break ceramic tube fuse is: when the current reaches the rated current, the fusing time is greater than 4 hours, when the current is 135% of the rated current, the fusing time is less than 1 hour, and when the current is 200% of the rated current, the fusing time is less than 5 seconds.

　　The temperature range of this series of products is -55 ℃~+125 ℃, with a wide range of usage temperatures; The storage condition is humidity: relative humidity ≤ 75%, can be stored for an average of 3 years, and can be stored for a long time; If the operating environment temperature exceeds the range of 25 ± 5 ℃, the impact of operating environment temperature on the fuse should be considered when selecting the fuse specification.

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