resettable fuse hold current.Classification of fuses_Industry Trends_News & Events_XC Electronics(Shenzhen)Corp.,LTD

Online Message

12 2024-01

Share:

　　 2ef474ea2c97371

　　According to different usage scenarios and characteristics, fuses can be divided into the following types:

　　1. Glass tube fuse

　　Glass tube fuse is the most common type of fuse, usually composed of a glass tube and two end joints, with a metal wire inside. When the current exceeds the rated value, the metal wire will melt and cut off the circuit. This type of fuse is usually suitable for low voltage, low current circuits.

　　2. Hot melt fuse

　　Hot melt fuse is also a commonly used fuse, which is made of fusing alloy inside. When the current exceeds the rated value, the fusing alloy will melt and break, cutting off the circuit. This type of fuse is usually suitable for high current, high temperature circuits.

　　3. High voltage fuse

　　High voltage fuse is a type of fuse specifically used in high voltage circuits, with a fuse made of conductors inside. When the current exceeds the rated value, the fuse will melt and cut off the circuit.

Read recommendations:

12v battery fuse

high voltage fuse types

heater for garage with thermostat.Characteristics of disposable blown fuses

Glass sealed fuse.auto fuse block

PREVIOUS:pptc resettable fuse datasheet.There are several general classifications of thermistors

Next：Structure of fuse holder

Related News

July 20,2023

Classification of fuses and fuses.fast acting fuse meaning

　　　　Spiral fuse: There is a fuse indicator on the upper cover of the melt. Once the melt melts, the indicator immediately pops up and can be observed through the glass hole on the ceramic cap. It is commonly used in machine tool electrical control equipment. Spiral type fuse. The breaking current is large and can be used for short circuit protection in circuits with voltage levels of 500V and below, and current levels of 200A and below.　　Enclosed fuses: Enclosed fuses are divided into two types: filled fuses and unfilled fuses, as shown in Figures 3 and 4. Fuses with fillers are generally made of square porcelain tubes filled with quartz sand and melt, with strong breaking capacity. They are used in circuits with voltage levels below 500V and current levels below 1KA. The unfilled sealed fuse packs the melt into a sealed cylinder, with a slightly smaller breaking capacity, and is used in power grids or distribution equipment below 500V and 600A.　　Quick fuse: Quick fuse is mainly used f

July 14,2023

Current fuse LEBAO.fast blow vs slow blow fuse

　　　　Rated voltage　　The nominal working voltage of a fuse, codenamed Un, is generally rated at 32V, 60V, 125V, 250V, 300V, 500V, 600V, and 1200V. 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.　　Voltage drop　　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.　　Fuse resistance　　Usually divided into cold resistance and hot resistance, cold resistance is the resistance value measured by a test current less than 10% of the rated current at a fuse temperature of 25 ℃. The thermal resistance is converted from the voltage drop measured at the full rated current value as

July 13,2023

SEFUSE Thermal cutoff.thermal overload protector in motor

　　　　Precautions for installation of SEFUSE Thermal cutoff: 1. When the lead wire is bent for use, it should be bent from the part more than 6mm from the root; When bending, it is not allowed to damage the roots and leads, and it is not allowed to forcefully pull, press, or twist the leads. 2. When the thermal fuse is fixed by screws, riveting, or wiring terminals, it should be able to prevent mechanical creep and the occurrence of poor contact. 3. The connecting components should be able to work reliably within the working range of the electrical product, without displacement due to vibration and impact. When conducting wire welding operations, the heating humidity should be limited to the minimum, and attention should be paid not to apply high temperatures to the thermal fuse; Do not forcefully pull, press, or twist the thermal fuse and leads; After welding, it should be immediately cooled for more than 30 seconds. 5. The thermal fuse can only be used under the specified rated voltage

August 26,2023

Selection steps for self-healing fuse PPTC.plug in mcb for old fuse box

　　　　The self-healing fuse PPTC is a type of overcurrent electronic protection component, which is made by adding conductive particle materials to a polymer organic polymer under high pressure, high temperature, and vulcanization reaction conditions, and processed through a special process. Self recovery fuse (PPTC: Polymer self recovery fuse) is a positive temperature coefficient polymer thermistor used for overcurrent protection and can replace current fuses. When the circuit is working normally, its resistance value is very small (voltage drop is very small). When the circuit experiences overcurrent and causes its temperature to rise, the resistance value sharply increases by several orders of magnitude, reducing the current in the circuit to below the safe value, thus protecting the subsequent circuit. After the overcurrent disappears, it automatically returns to a low resistance value. The above is the working principle of a self recovery fuse.　　Chip self recovery fuse　　Most people

July 19,2023

Thermal cutoff NEC.best hair thermal protector

　　　　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