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.
Surge Protector SPD Selection CriteriaMay 20, 2022The surge protector is divided into three levels according to the area that needs to be protected. The first level surge protector can be applied to the main power distribution cabinet in the building...viewExcellence in Quality: Product Applications of Photovoltaic DC Power Supply SPDJune 26, 2024Photovoltaic equipment is often exposed to outdoor environments over the long term, while the electronic components of inverters are highly sensitive to environmental conditions. Particularly on the D...viewIntelligent PDU Surge Protector: A Perfect Combination of Efficient Protection and Smart ManagementApril 23, 2025As the widespread use of modern data centers, video surveillance systems, Ethernet switches, and various terminal devices continues, the safety and stability of power equipment have become particularl...viewEmerging Trends in Signal Surge Protector TechnologyFebruary 29, 2024As technology continues its relentless evolution, the realm of signal surge protectors is undergoing transformative changes. The surge protection landscape is witnessing innovative advancements driven...viewDo surge protectors work against lightning?April 27, 2025Although surge protectors cannot directly prevent lightning strikes, they can significantly reduce the damage caused by lightning strikes to electrical equipment and circuits. As a specially designed ...viewThe Position of Installing Surge ProtectorMarch 23, 20221. Where to install surge protector？The position of the surge protector: the surge protector is an important component of the lightning protection project in a building, so the location of the surge prote...view
EN
jp 
ko 
fr 
de 
es 
it 
ru 
pt 
ar 
vi 
th 
ro 
bg 
nl 
