Welcome to Chipmall.com
Products
View All Products
Home > News > News detail

What is the role of thermal fuse in the circuit?

baijiahao | 25/06/2021

Thermal fuse is also called thermal fuse, it is a new type of electrical overheating protection element. This kind of element is usually installed in an electric appliance that is easy to heat. Once the appliance fails and generates heat, when the temperature exceeds the abnormal temperature, the thermal fuse will automatically fuse to cut off the power supply to prevent the appliance from causing a fire. In recent years, all household appliances in my country whose main function is to generate heat, such as rice cookers, electricity hoppers, electric stoves, etc., have been installed with thermal fuses. The thermal fuse can cut off the power supply in time when the internal part of the machine fails to prevent further electrical appliances. Damage, also put an end to the resulting fire. The thermal fuse is the same as the fuse we are familiar with. It usually only serves as a power path in the circuit. If it does not exceed its rated value during use, it will not fuse and will not have any effect on the circuit. It will fuse and cut off the power supply circuit only when the electrical appliance malfunctions and produces an abnormal temperature.

This is different from a fuse fuse, which is blown by the heat generated when the current exceeds the rated current in the circuit.

Thermal fuse has the characteristics of accurate melting temperature, high withstand voltage, small size and low cost. The rated temperature and rated current are marked on the housing of the thermal fuse, which is easy to identify and use. It can be widely used in electrical equipment, electric heating equipment and practical electrical appliances for overheating protection.

The thermal fuse mainly has the following parameters:

①Rated temperature: Sometimes called the operating temperature or the fusing temperature. It refers to the temperature at which the temperature rises at a rate of 1°C per minute to the fusing temperature under no load.

②Fusing accuracy: refers to the difference between the actual fusing temperature of the thermal fuse and the rated temperature.

③Rated current and rated voltage: Generally, the nominal current and voltage of thermal fuse have a certain margin, usually 5A and 250V.

Thermal fuse is a one-time-use protection element. Its use effect not only depends on the performance of the element itself, but more importantly, how to select and install the thermal fuse correctly. The thermal fuse is generally connected in series in the circuit when it is used. Therefore, when choosing a thermal fuse, its rated current must be greater than the current used in the circuit. Never allow the current through the thermal fuse to exceed the specified rated current. Before selecting the rated temperature of the thermal fuse, you must understand and actually measure the temperature difference between the temperature to be protected and the location where the planting fuse is installed. In addition, the length of the fusing time and the availability of ventilation are also closely related to the selection of the rated temperature of the thermal fuse.

Tags

Thermal Cutoffs

Topic
News Homepage
News detail

Brands

Cross News

1. Thermal fuse selection guide

Thermal fuse selection guide

2. What is the role of thermal fuse in the circuit?

What is the role of thermal fuse in the circuit?

3. Modular power supplies offer up to 18 outputs with...

Modular power supplies offer up to 18 outputs with low acoustic noise and full MoPPs isolation

4. Smart storage includes an open-source toolkit for ...

Smart storage includes an open-source toolkit for managing data centre storage

5. Power MOSFETs offer high power density and efficiency

Power MOSFETs offer high power density and efficiency

6. Sensor modules provide long range presence and pro...

Sensor modules provide long range presence and proximity sensing for light curtain applications

7. AMD Achieves 25x Energy Efficiency Goal from 2014

AMD Achieves 25x Energy Efficiency Goal from 2014

8. Podcast: DAC 2020 preview – AI, ML and RISC-V on rise

Podcast: DAC 2020 preview – AI, ML and RISC-V on rise

9. New touchscreen controller for smart surfaces and ...

New touchscreen controller for smart surfaces and multi-function displays

10. Intel to Introduce Control-Flow Enforcement Techno...

Intel to Introduce Control-Flow Enforcement Technology into Tiger Lake Mobile CPUs

Connect with us
Email error
©2022 Chipmall Electronics Limited. All Rights Reserved.    Sitemap
We use cookies to offer you a better experience. Detailed information on the use of cookies on this website is provided in our Privacy Policy. By using this site, you consent to the use of our cookies.
Accept