The basic components of the fuse and instructions - Fuse transposon

The basic components of the fuse with instructions - a transposon fuse, fuse transposon - basic components Fuse: General fuse consists of three parts: First, melt part, which is the core fuse, fuse when play cut off the current in the same class, the same size fuse melt, the material to be identical to the same geometry, the resistance value is small, and to be consistent, the most important thing is to be consistent as possible fusing characteristics, household fuse used lead-antimony alloy a; second electrode portion, usually two, it is an important component of the melt with the circuit connection, it must have good electrical conductivity, should not have a significant contact resistance is installed; third bracket portion, generally melt fuse are slim soft, the role of the stent is to melt the three parts to a rigid, fixed and overall ease of installation, use, it must have good mechanical strength, insulation, heat resistance and flame resistance, not in use It should have a fracture, deformation, burning and short circuit and so on. Second, the fuse transposon - Fuses Instructions: 1. normal operating current at 25 ℃, running, fuse current rating is usually reduced by 25% in order to avoid harmful blown. Most materials used in conventional fuse which has a lower melting temperature. Therefore, more sensitive to changes in the kind of fuse ambient temperature. For example, a current rating of 10A fuse generally do not recommend running at currents greater than 7.5A under at 25 ℃ ambient temperature. 2. Voltage Rating Fuse voltage rating must be equal to or greater than the effective circuit voltage. General standard voltage ratings range is 32V, 125V, 250V, 600V. 3. The resistance of the fuse resistor is not important in the entire circuit. Since amperage fuse resistance less than 1 ohm only a few, so the use of low-voltage circuit fuse should consider this issue. Most of the fuse is a positive temperature coefficient of the material, therefore, there is cold resistance and heat resistance of the points. 4. The current carrying capacity of the environment temperature fuse, which experiments at 25 ℃ ambient temperature conditions, such experiments by the ambient temperature change. The higher the ambient temperature, the higher the operating temperature of the fuse, the shorter its life. On the contrary, at lower temperatures will extend the operational life of the fuse. 5. Fuse rated capacity, also known as cause-off capacity. Fuse rated capacity is the maximum allowable current fuse at rated voltage can be really blown. Short circuit, the fuse will be many times larger than through the normal operating current transient overload currents. Requirements for the safe operation of the fuse intact state (no cracking or fracture) and eliminate short circuit. Shenzhen Kai City, a Swiss Electronics Co., Ltd. is a highly specialized world famous fuse sales agents, the company has been committed to world-famous brand BUSSMANN, LITTELFUSE, BOURNS Ferraz Shawmut, SIBA, fuse nest products in the promotion and sales at home and abroad Tel: 13714680709!