The rated current values usually include 100mA, 200mA, 315mA, 400mA, 500mA, 630mA, 800mA, 1A, 1.6A, 2A, 2.5A, 3.15A, 4A, 5A, 6.3A, etc. Generally, the rated current values of various fuses are provided based on customer needs and actual purposes. The nominal working voltage of a fuse, codenamed Un, is generally rated at 32V, 60V, 125V, 250V, 300V, 500V, and 600V. Fuses can be used at a voltage not exceeding their rated voltage, but are generally not approved for use in circuits with a circuit voltage greater than the rated voltage of the fuse. When the rated current is applied to the fuse, the voltage measured at both ends of the fuse when the fuse reaches Thermal equilibrium, that is, when the temperature is stabilized, is Ud. Due to the voltage drop at both ends of the fuse having a certain impact on the circuit, there are clear provisions for voltage drop in European regulations. Usually divided into cold resistance and hot resistance, cold resistance is the resistance value
Also known as rated short-circuit capacity, it refers to the maximum current value (AC is the effective value) that a fuse can safely break under rated voltage. It is an important safety pointer for fuses. The code for breaking capacity is Ir. That is, the time/current characteristic (also known as the ampere second characteristic). There are usually two expression methods, namely I-T diagram and test report. The I-T diagram is a curve formed by connecting the average fusing time coordinate points of fuses under different current loads in a coordinate system composed of load current as the x coordinate and fusing time as the y coordinate. Each model and specification of fuse has a corresponding curve that represents its fusing characteristics. This curve can be used as a reference when selecting fuses. A test report is a record of test data conducted in accordance with standard requirements for testing projects. Our I-T chart and test report are both based on the data measured und
Temperature rise refers to the difference between the temperature at which a fuse stabilizes under the specified current value (100% In in UL and 115% In in Japanese regulations) and the temperature before power on. Classification of current fuses: According to size, it can be divided into: size, 3.6X10, 3X10, 5X20, 6X30, 6X32, 6X25, 10 * 38, 2.4X7, 2.5X6, 3X8, 2.5X9, 8.5X8, 8.5X8X4, 3.5X10, 3.5X9 According to current, it can be divided into 32ma, 63ma, 100mA, 150mA, 200mA, 250mA, 300mA, 400mA, 500mA, 600mA, 800mA, 1A, 1.25A, 1.6A, 2A, 2.5A, 3A, 3.5A, 4A, 5A, 6A, 7A, 8A, 9A, 10A, 12A, 15A, 20A, 25A, 30A According to material classification, it can be divided into: Glass current fuse, ceramic current fuse Product Introduction: Limits for Pre arcing Time % of Ampere Rating Opening Time 100% 4 hours, minimum 200% 120 seconds, max The overall size of the product is 3x10mm, with 3mm being the diameter of the glass tube and 10mm being the length of the glass tube. The two end
Although Thermal cutoff has high reliability in design, there are limits to the abnormal conditions that a single Thermal cutoff can cope with. In addition, due to man-made or unpredictable force majeure, the Thermal cutoff is damaged and cannot function normally, so the circuit cannot be cut off in time when the machine is abnormal. Therefore, when the machine is overheated, when the wrong action has a direct impact on the human body, when there is no circuit cut-off equipment except the fuse, and when high safety is required, more than two Thermal cutoff with different fusing temperatures should be used. The thin Thermal cutoff is specially developed for the over temperature protection of lithium ion batteries. Its working principle is the same as that of the second Thermal cutoff mentioned above. The circuit is connected with low melting point alloy, which is wrapped with flux resin, connected with metal guide plate and sealed with plastic material. When there is a short circui
Car fuse box is a box used to install car fuses. According to the size of the installed fuse, it can be divided into: small car fuse boxes; Medium size car fuse box; Large car fuse box. General injection molding materials include: PBT engineering plastics, each with varying degrees of high temperature resistance. When selecting a car fuse box, consideration should be given to the current size of the car fuse used, the size requirements of the fuse, and the selection of different fuse boxes. The English translation of automotive fuse box is: Classification of automotive fuse boxes: According to the classification of installed fuses, they can be divided into fuse box and fuse box According to the size of fuses, they can be divided into large fuse boxes, medium fuse boxes, and small fuse boxes According to material classification, it can be divided into plastic fuse boxes and bakelite fuse boxes According to environmental protection, it can be divided into environmentally friendl
Operating temperature range: SF type is 73 ℃~240 ℃, SM type is 76 ℃~187 ℃. The rated current is 0 Various products ranging from 5A to 15A. The safety certification includes UL, CSA, VDE, BEBA, PSE, JET, CQC, etc. It meets the requirements of the European Union ROHS environmental protection directive. NEC Thermal cutoff has the function of detecting abnormal temperature and cutting off the circuit. It can detect abnormal temperature rise of household or industrial electrical products and quickly cut off the circuit in a timely manner, achieving the function of preventing fires from igniting. NEC Thermal cutoff is a kind of element that provides very reliable protection under the condition of overtemperature. It has small size, large overcurrent, non reset, stable performance, convenient installation, and a certain range of humidity settings and bearing capacity for selection to meet customer application needs. The products are widely used in various motors, copiers, fax machines, HI
MB:+86 13924633629 Ms.vicky
E-mail: waimao@xcfuse.com
Factory :
XC Electronics(Shenzhen)Corp.,LTD
Add: Jinyuan Industrial zone,Heao, Henggang, Shenzhen 518115,China
Shenzhen branch: Shenzhen Xucheng Electronic Commerce co.Ltd
Add: 8-15 Jinyuan Industrial zone,Heao, Henggang, Shenzhen 518115,China
