Saftty’s Thermal Protector Solution for Power Supply

A thermal protector is a device that senses the temperature of an electrical component and disconnects the electrical component from the circuit when it reaches a certain threshold temperature. The purpose of this function is to prevent damage to the electrical component due to overheating. This is especially important in high-power circuits where heat dissipation can be difficult to achieve. The most common application for thermal protectors is in power supplies.

Why Do We Apply Thermal Protectors in the Power Supply?

Here are three main reasons to apply thermal protectors in power supply.


  1. Detect Over-Temperature Conditions

The power supply circuit can be damaged by over-temperature, and it is necessary to detect the problem quickly so that the device will not be damaged and reduce its service life. Thermal protectors are designed to detect over-temperature conditions and trigger an action when the temperature reaches its limit so that no further damage will take place.

  1. Keep the Temperature from Rising Enough to Cause Fire

Thermal protectors also act as a safety mechanism for the device in which they are installed. If an overheating condition occurs, the thermal protector will shut off power to the circuit and prevent damage from occurring. The high-temperature rise can cause damage to electronic circuits and even cause a fire if it gets too hot. This kind of situation requires immediate action so as not to cause damage and avoid any possible accidents.

  1. Automatic Reset after Cooling Down

When the temperature is normal again, the thermal protector automatically resets itself, and the device returns to its original state. This allows you to keep working with confidence even if your device overheats temporarily due to excessive heat generated by heavy workloads or sudden voltage surges.

Safttys BW-B Series Thermal Protector: Best Solution for the Power Supply

The BW-B Series Thermal Protector is an efficient solution for the power supply and ensures efficient usage of the device. It is designed to protect against overheating, ensuring that your devices are protected from damage caused by excessive heat. This product comes in a variety of sizes and designs, allowing you to choose the one that fits your needs most easily.


This series of thermal protector has an operating temperature range from 40 to 160 ℃ that can meet the requirements of various industrial applications. It has been designed for safety and reliability by providing a quick response for over-temperature protection so that it can protect your equipment from overheating immediately.


The device is easy to install and maintain because it is compact in size and lightweight, so you can carry it anywhere you want without any trouble or burden on your shoulders. It has good AC and DC characteristics, which means it will work reliably every time you use it.


It is made from high-quality materials that are designed to last through years of use, so you don’t have to replace it as often. It has been certified to meet international safety standards such as UL, VDE, and CQC. It is an ideal solution for power supply applications such as batteries, vacuum cleaners, heating appliances, transformers, pumps, and power tools.


This thermal protector has been tested and approved by thousands of users worldwide, which means that it has proven to be a reliable product with excellent performance. If you are looking for an efficient way to protect your equipment from overheating or damage caused by excess heat, then this product is definitely one of the best options available on the market today.

About Saftty

Saftty’s product range is diverse, from the most basic to the most advanced. We have a worldwide distribution network to meet your needs around the globe. We offer a wide range of products, including:



Saftty has been providing quality safety solutions for more than 10 years. Our products are widely used in the fields of power supply, automation, and industrial engineering. We provide customized samples and a wide range of standard products that are customized according to your requirements. Moreover, we have a long-term relationship with our customers, and we always provide high-quality products at competitive prices.



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