Surge protection device is one of the most important devices in modern buildings, and they should be applied conjunction with fuses, circuit breakers, SCB, and other overcurrent protection devices to ensure that lines and equipment are kept safe. So, how should surge protection devices and SCB work together?
If the surge protection device is unable to withstand lightning currents exceeding its with stand capacity, or if the grid fault overvoltage or other circumstances result in a surge protection device short-circuit fault, the SCB must be removed from the line to ensure the safety of the line and the equipment, which is the main function of the SCB.
SCB and lightning surge protection device must be used in conjunction with each other and must meet the requisite parameters.
1. Matches the discharge current of the surge protector and does not operate when a surge (surge) occurs in the line.
2. In the event of a surge protection device short-circuit, prompt and reliable action is required, as well as the safe removal of the surge protection device from the line.
3. The overcurrent protection device in the main line is compatible with the SCB put at the front of the surge protection device.
Techwin specializes in surge protection devices and is the leading lightning solutions firm (SPD) in China. Our products adhere to the most recent international and national standards. We've been given 28 technological patents and numerous certificates, including CE, ROHS, TUV, UL, CQC, ISO9001, ISO14001, and ISO45001. We are also a maker of well-known lightning arrester brands from through the world. Telecommunications, electric power, CCTV, railway, intelligent transportation, solar and wind energy, petrochemical industry, and other industries prefer our products, particularly the basic protection devices created by our firm. Welcome to place an online order for our products.
The Importance of Lightning Protectors in Protecting Home Appliances and ElectronicsFebruary 29, 2024In today's digital age, our homes are filled with a multitude of electronics and appliances that we rely on daily. From televisions and computers to refrigerators and washing machines, these devic...viewSPD Supply: A Strong Backing for Power EquipmentOctober 9, 2024SPD supply is a protective device installed in power lines to prevent damage to electrical equipment caused by transient overvoltage or overcurrent due to lightning strikes. The primary function of SP...viewTVSS Launch | New Benchmark for Three-Phase Surge ProtectionOctober 10, 2025PART.01 What is TVSS?TVSS (Transient Voltage Surge Suppressor) is a core member of the surge protector (SPD) family that deals specifically with transient overvoltages. The HM400(200)B3N is designed f...viewSignal Surge Protector: Safeguarding Electronic Systems Against LightningDecember 12, 2024The surge protector is an electronic device that provides safety protection for various electronic equipment, instruments, and communication lines. According to its use, it can be divided into power s...viewSurge Protector for Closed-Circuit Television SystemJune 26, 2024This article will introduce the importance and working principle of surge protector for CCTV that meet the high availability requirements of closed-circuit television systems.The Necessity of Surge Pr...viewWhat is A Surge protective device（SPD)? How to install it in an AC power system?April 16, 2025A Surge Protective Device (SPD) is a critical component designed to safeguard electrical systems and equipment from voltage surges caused by lightning strikes, power grid fluctuations, or switching tr...view
EN
jp 
ko 
fr 
de 
es 
it 
ru 
pt 
ar 
vi 
th 
ro 
bg 
nl 
