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The core mission of a Surge Protective Device (SPD) is to neutralize voltage and current surges that far exceed normal levels within microseconds or even nanoseconds. Today, we will take you deep inside an SPD to see how components with different characteristics work together in precise coordination to complete this ultra-fast protection.

For over 19 years, BXST has been a trusted manufacturer of high-quality voltage protection devices, helping households and businesses safeguard their valuable electronics from unpredictable power conditions. Today, we are proud to introduce our South American series—featuring the versatile V338 line and BX-V339. Designed with both innovation and user convenience in mind, these protectors ensure your equipment remains safe under voltage fluctuations, surges, and more.

For over 19 years, Wenzhou BXST Co., Ltd. has been a trusted manufacturer of voltage protection products. We proudly present the V309 and V310 Voltage Protectors—designed to safeguard your home appliances against unexpected voltage surges and fluctuations. Featuring flame-retardant housings and a wide voltage range (90V–140V), both models offer automatic power cutoff during abnormal conditions. With easy plug-and-use operation and support for devices up to 1800W, they provide essential protection for refrigerators, TVs, washers, and more.

As a precision appliance operating, household refrigerators have significantly higher voltage stability requirements than ordinary household appliances. Although standard household voltage ranges from 110V to 240V, when voltage fluctuations exceed the ±10% threshold, the compressor motor may experience insufficient torque or overload operation leading to winding overheating, while electronic control systems may suffer program malfunctions. Laboratory data indicates that voltage abnormalities can reduce refrigerator lifespan by over 40%.

During the thunderstorm season, high-power appliances like air conditioners face potential threats from power grid fluctuations and lightning surges. A professional air conditioner surge protector can effectively safeguard your expensive AC equipment and extend its service life. This article provides a detailed guide on how to select the most suitable surge protector for your needs.

When thunderstorms roar at midnight or voltage plummets during summer peaks, have you ever worried about your expensive TV, computer, or air conditioner getting damaged instantly? In today’s increasingly complex electrical environments, ordinary sockets can no longer provide adequate protection for precision electronics. Voltage stabilizing power strips and surge protectors have emerged as "power guardians" for modern homes and offices.

Thunderstorms, air conditioner startups, power grid fluctuations... These can all trigger deadly power surges (instantaneous high-voltage pulses) in your home circuits. Precision electronics like TVs and computers are highly vulnerable to damage. Selecting a suitable home surge protector establishes the first line of defense for your valuable appliances. This article outlines common types of home surge protectors and key selection criteria.

When you purchase a surge protector (also known as a surge suppressor or lightning protection power strip) for valuable home appliances like your TV, computer, or refrigerator, you'll always notice a prominent parameter: the Joule Rating (e.g., labeled as "140J", "540J", "918J"). What exactly does this number represent? Why is it so important? This article will provide a clear explanation.