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SPD Surge Protective Device
Surge protector, also known as lightning protector, is an electronic device that provides safety protection for various electronic equipment, instruments and communication lines. When the electrical circuit or communication line suddenly generates peak current or voltage due to external interference, the surge protector can conduct shunt in a very short time, so as to avoid the damage of surge to other equipment in the circuit. The surge protector is applicable to AC 50/60HZ, and the rated voltage is 220V to In the 380V power supply system, indirect lightning and direct lightning impact or other transient over-voltage surges are protected, which is applicable to the requirements for surge protection in household, tertiary industry and industrial fields.
Sofielec Electrical provides circuit diagrams of surge protection devices used in photovoltaic combiner boxes, photovoltaic inverters, photovoltaic controllers, photovoltaic DC cabinets, and other equipmen...
XZ-NPE 275V surge protector 20KA/40KA is usually installed in residential distribution boxes, computer centers, information equipment, electronic equipment, and control equipment in front of the nearest so...
XZSCB-10KA/20KA/40KA/60KA/80KA surge protector adopt high-energy contact, long service life; The ability to withstand the impact of current is strong, no wrong action; Power frequency current through more ...
XZSCB SPD special backup protector (special backup protection device for lightning protection),to solve the lightning protection device due to deterioration and power grid failure caused by fire hazards.
The visual window displays green when 5KA/10KA/20KA surge protection device(spd) is working normally, and red when it disengages.it is installed at the junction of LPZ1/LPZ2 and LPZ3 with a 35mm standard g...
AC Power Low Voltage Surge Protection Device XZ1-SPD 80/100 is suitable for civil construction, electrical, communications, and road traffic, such as the petrochemical industry of power equipment protectio...
200KA/230 Volt Three Phase Surge Protector is mainly used to protect low-voltage customer electrical installations from surges caused by atmospheric discharge (e.g. to indirect lightning) or other operatin...
XZ2-SPDI+II15 Electric Power Surge Protection Device has a built-in disconnector. When the SPD fails due to overheating or breakdown, the disconnector can automatically disconnect it from the power grid an...
CHXI-D20 white SPD surge protective device has a reliable voltage protection level and safe characteristic of overload, strong discharge current capability, applied to lighting protection of AC low voltage...
EL1-B-60 SPD Surge Protector Protective Electrical Devices are usually used in low-voltage power distribution systems, electronic equipment, communication equipment, computers, and other equipment that nee...
By installing the EL1-25 25KA/150KA 275V/385V Surge Protective Device, it can quickly absorb and dissipate overvoltage, directing it to the ground, thus protecting the equipment from damage, extending its ...
4P Level 2 surge protector SPD household surge protector EL1-C-40 can reduce downtime and repair costs. Without surge protectors, sudden voltage surges in the power system can cause equipment damage, requi...
Surge Protective Device Technical Parameters
SPD considers that the impulse withstand voltage of the protected electrical equipment must be greater than the voltage protection level of the surge protector. SPD is mainly used in low-voltage distribution, cabinets, low-voltage electrical appliances, communications, signals, machine stations, computer rooms, etc.
Single Phase1P+N2PThree Phase3P+N4P
In(8/20μs)Nominal discharge current
Ics Short circuit breaking capacity
SPD Surge Protection Device Manufacturers & Suppliers
Sofielec Electrical is a professional surge protector manufacturer and supplier in China, we are characterized by high-quality products and good service, please feel free to buy customized DC surge protectors from our factory at competitive prices.
Surge protectors are mainly used in industries that require highly stable and reliable performance, especially those areas that are sensitive to the risk of equipment damage. The following are the main application scenarios of Sofielec Electrical surge protectors.
Surge protector can be applied to photovoltaic combiner boxes. All distribution boxes, regardless of size, including household distribution boxes, can be used wherever there is an iron box with switches inside.
Whether it is a new construction or the renovation of existing communication facilities, it must be accompanied by the construction of a lightning protection system.
Most new energy is used in photovoltaic combiner boxes and distribution boxes, and there are also applications in charging piles, usually using AC surge protectors.
The demand for lightning protection products in the petrochemical industry is mainly grounding products for oil pipelines, gas pipelines and refining equipment.
Most of the applications in the construction industry are in boxes, distribution boxes, distribution cabinets, branch distribution cabinets, etc.
It also includes rail transportation, aerospace, informatization and household applications.
Sofielec SPD Factory & Manufacturer & Supplier
Yueqing Sofielec Electrical Co, Ltd with over 20 years of experience, Sofielec specializes in low voltage circuit protection of residential and commercial terminal distribution throughout the world.
Our workshop has semi-automatic and fully automatic testing equipment, and all procedures are controlled by inspectors to ensure product quality.
Moreover, we have CB CE SEMKO certification for this series of products, which belongs to international certification and can be sold in various regions, If the customer needs other certifications, they can also use CB certification to go to the local certification agency for certificate renewal.
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We have an experienced team with more than 20 years of experience, based on 3 main factory buildings covering an area of over 70,000m² .
OEM/ODM service available. Our strong R&D team will help clients with customized products development by samples and requirements.
Maintenance and Control
Since the shell of the molded case circuit breaker is made of flame-retardant materials, frequent replacement of the shell is not required.
News & Update
Sofielec SPD Manufacturer knowledge popularization: what does spd stand for in electrical, surge protector selection guide, working principle of surge protector, explanation of surge protection device, how to install surge protector, wiring method of surge protector, etc.
Design Points And Wiring Forms Of SPD Surge Protective Device In Power Distribution System
SPD surge protective device manufacturer tells you,there are four types of grounding systems for low-voltage distribution systems: IT, TT, TN-S, and TN-C-S. Therefore, SPD needs to choose different wiring details based on the different grounding systems of the low-voltage distribution system. For ex...
SPD surge protective device working principle is that when there is an instantaneous overvoltage on the power line or signal transmission line, the surge protector will release the overvoltage to limit the voltage within the range that the equipment can withstand, thereby protecting the equipment fr...
Features and working principles of Surge Protective Device
Surge protectors are also known as lightning arresters. We can often see them around us, which can play a vital role. Its main function is to provide safety protection electronic devices for various electronic equipment, instruments and communication lines.