power fuse supply
中文
Online Message
Online Message
News & Events News & Events

News & Events

Keep abreast of company dynamics

Fuse melt rating.motor blows fuse on startup

12

2023-07

Share:

　　

　　The rated current of the melt is not equal to the rated current of the fuse. The rated current of the melt is selected based on the load current of the protected equipment. The rated current of the fuse should be greater than the rated current of the melt and determined in conjunction with the main electrical appliance.

　　The fuse is mainly composed of three parts: the melt, the shell, and the support, among which the melt is a key component that controls the fusing characteristics. The material, size, and shape of the melt determine the fusing characteristics. Melt materials are divided into two categories: low melting point and high melting point. Low melting point materials such as lead and lead alloys have a low melting point and are prone to melting. Due to their high electrical resistivity, the cross-sectional size of the melt produced is larger, and the metal vapor generated during melting is more. They are only suitable for fuses with low breaking capacity. High melting point materials such as copper and silver have a high melting point and are not easy to fuse. However, due to their low electrical resistivity, they can be made into smaller cross-sectional sizes than low melting point melts. They produce less metal vapor during melting and are suitable for fuses with high breaking capacity. The shape of the melt can be divided into two types: filamentous and banded. Changing the shape of the variable cross-section can significantly change the fusing characteristics of the fuse.

　　Fuses have anti time delay characteristics, that is, when the overload current is small, the fusing time is long; When the overload current is high, the fuse time is short. So, within a certain overload current range, when the current returns to normal, the fuse will not blow and can continue to be used. Fuses have various different fusing characteristic curves, which can be suitable for the needs of different types of protection objects.

Read recommendations:

ups battery fuse

coffee thermostat

automotive fuse sizes

What is the principle and material of a fuse.mini blade fuse box

microwave high voltage fuse.Basic composition of patch fuses

PREVIOUS:Basic Introduction to Temperature Control Fuses.lighting circuit fuse rating

Return

Next：Use and maintenance of fuses.best fuse brand philippines

Related News

September 15,2023

Safe use of electricity, safety of fuses.slow blow fuses near me

　　　　On June 30th, an employee of a power supply company in Gansu received a call from customer Yang, saying, "My house has a power outage, and the TV still has a burning smell. Can you please come over and take a look　　After the employees of the power supply company had a preliminary understanding of the power outage at Yang's house, the director of the office immediately arranged for the duty officer Wang to rush to the customer's house. Pushing open the door of Yangmoujia's room, a burning smell filled the room. Therefore, Wang immediately began to carefully inspect the wiring direction of Yang's house. With years of work experience, Wang went straight to the customer's knife switch and found that the fuse was intact without any signs of burning out. Upon closer inspection, he found that the fuse was actually replaced with copper wire.　　After the employees of the power supply company had a preliminary understanding of the power outage at Yang's house, the director of the office immed

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

November 14,2023

automotive blade fuse dimensions.Characteristics of Chip Fuses

　　　　With the development of technology, there are more and more components in circuit design, so the requirements for electronic component packaging are becoming smaller and smaller. The 0603 SMD fuse emerged in this context.　　The 0603 chip fuse provides ultra fast action fusing characteristics in a smaller chip size. The rated current value of the device is up to 4.0A, and its breaking capacity is 35A at a rated voltage of 32V.　　The 0603 fuse adopts standard metric dimensions (91.55mmx85mmx45mm) and can provide secondary overcurrent protection for low-voltage power supplies in DC-DC converters, battery chargers, and portable consumer electronic devices. Through strictly controlled manufacturing processes and advanced thick film technology, fuses provide excellent long-term stable fusing characteristics for portable devices such as mobile phones, PDAs, digital cameras, cameras, and LCD flat panel displays.　　The halogen free and lead-free 0603 chip self recovery fuse supports lead-free

July 06,2023

Fuse related instructions.fast acting fuse is used for protection against

　　　　1. When operating at a normal operating current of 25 ℃, the current rating of the fuse should usually be reduced by 25% to avoid harmful blowing. Most traditional fuses use materials with lower melting temperatures. Therefore, this type of fuse is relatively sensitive to changes in ambient temperature. For example, a fuse with a current rating of 10A is usually not recommended to operate at an ambient temperature of 25 ℃ and a current greater than 7.5A.　　2. The voltage rating of the fuse must be equal to or greater than the effective circuit voltage. The general standard voltage rating series are 32V, 125V, 250V, and 600V.　　3. The resistance of a resistor fuse is not important in the entire circuit. Since the resistance of a fuse with an amperage less than 1 is only a few ohms, this problem should be considered when using a fuse in a low-voltage circuit. Most fuses are made of materials with a positive temperature coefficient, so there are two types of resistors: cold resistance a

October 19,2023

normally open vs normally closed.What is a self recovery fuse

　　　　1、 What is a self recovery fuse　　Self recovery fuse is an overcurrent electronic protection component that uses a polymer organic polymer under high pressure, high temperature, and sulfurization reaction conditions　　After mixing with conductive particle materials, it is processed through a special process. Habitually applying PPTC (Polymer Positive Temperature)　　Coefficent, also known as a self restoring fuse. Strictly speaking, PPTC is not a self restoring fuse, and Resettable Fuse is a self restoring fuse.　　2、 Principle of self recovery fuse　　The self recovery fuse is made of high-tech polymer resin and nano conductive grains through special processing. Under normal circumstances, nano conductive grains　　The body forms a chain like conductive path along with the resin based link, and the fuse operates normally; When a circuit experiences a short circuit or overload, the large current flowing through the fuse causes its temperature to increase. When the Curie temperature is reache

+86 755 89762685

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

About Us Products Resource Solutions Certifications News & Events Contact Us

© Copyright. xc 2023. All rights reserved.粤ICP备11049369号