- 2025-05-07
How Surge Protectors Work
In modern society, electronic devices are almost everywhere. From home appliances to office computers, from communication systems to industrial equipment, they all rely on a stable power supply.
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About Us
Zhejiang Zhenghao Fuse Co., Ltd.
Zhejiang Zhenghao Fuse Co., Ltd. is a professional manufacturing company specialized in fuse products for more than 30 years. We started our business from 1985 with the name of Yueqing Zhenghao Fuse Co., ltd, mainly manufacturing low-voltage fuse products.
The company is located in Liushi Town - "the Capital of Electricity of China", in Yueqing City, Zhejiang Province. With over 20 years of history, we have developed more than 12 series products, including more than 400 varieties, such as cylindrical fuse links, screw fuse base, square pipe fuse links with knife contacts, fuse selection handbook and so on. The registered trademark of our products is ZHENGRONG, a well-known and trustworthy brand in extensive customers. We have got ISO900 approval, CE as well as CCC on many products.
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Industry Experience
40 years of industry experience, specializing in the production of fuse products
Featured Items
Featured Products
1000VDC Solar PV Fuse Holder
Zhenghao Fuse has developed a solar photovoltaic system 1000VDC Solar PV Fuse Holder box.ZHPV-32 1000VDC 10X38mm Solar PV Fuse Holder is specially designed to provide fast protection under overload current conditions. Capable of safely protecting 1000V DC systems (PV), 1000VDC Solar PV Fuse Holder photovoltaic DLN rail fuse holder adopts VO standard flame retardant shell and enclosed design. 1000VDC Solar PV Fuse Holder product complies with IEC standards.
1000V 250A DC Fuse Holder Photovoltaic Base
Thank you very much for your recognition，Zhenghao fuse The 1000V 250A DC Fuse Holder Photovoltaic Base is a powerful, safe and reliable piece of electrical equipment that is used in a variety of different industrial and commercial applications. Its durability, safety features and wide range of uses make it an integral part of electrical systems.
500A gPV 1500VDC Fuse core
The 500A gPV 1500VDC Fuse core is a self-developed solar photovoltaic fuse to meet the emerging needs of the global photovoltaic (PV) industry. It is designed specifically for protection and isolation. Photovoltaic (PV) array combiner and DC disconnect. The standard size fuse connection of this reinforced structure can effectively protect 1000VDC photovoltaic (PV) systems. The 500A gPV 1500VDC Fuse core provides various rated currents from 250A to 400A, which helps to match specific photovoltaic (PV) applications in different situations, such as photovoltaic array protection and photovoltaic inverter DC input protection.
1000VDC gPV 250A Fuse core
The working principle of the 1000VDC gPV 250A Fuse core is that when the current in the system exceeds the set value, the metal wires in the fuse will melt and disconnect due to excessive current. The 1000VDC gPV 250A Fuse core will promptly cut off the circuit to prevent current from continuing to flow and damaging other components. The photovoltaic power generation system adopts DC output, and once short circuited, it may generate high current, which is extremely dangerous for the safety of other equipment. The fuse protection function of photovoltaic fuses can timely cut off abnormal currents and play a role in safe circuit breaking.
Address
No. 19, Xianshi South Road, Xinguang Industrial Zone, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, China
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News Center
News
- 2025-05-07
What is the important role of DC fuse
In DC systems such as electric vehicles, solar power generation systems, energy storage equipment and communication power supplies, we often hear a term - DC fuse.
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- 2025-04-28
Application of photovoltaic DC fuses
As the global energy structure accelerates its transformation to green and low-carbon, photovoltaic power generation, as an important part of renewable energy, has ushered in rapid development.
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- 2025-04-28
What are the different types of cylindrical fuses?
In modern electrical systems, fuses play an indispensable role as an important component to protect circuit safety.
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- 2025-04-11
Zhenghao Fuse Debuts at the 137th Canton Fair
From April 15 to 19, 2025, the 137th China Import and Export Fair (Canton Fair) opened grandly in Zhuhai, Guangzhou. As a leading manufacturer of circuit protection equipment, Zhejiang Zhenghao Fuse brought a variety of high-performance fuses and intelligent solutions to the booth number: [15.2J0102] to empower the power safety field with innovative technology, attracting high attention from merchants at home and abroad.
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- 2025-03-13
Precautions for using fuses
Choose a suitable fuse : When choosing a fuse, you should choose an appropriate current rating according to actual needs. Usually, the fuse's fusing current is set to 1.5 to 2.0 times its rated current. For example, when the total power of household appliances exceeds 1100 watts, a 5-ampere fuse can be selected.
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- 2025-03-13
Types and characteristics of fuse materials
The material selection of fuses is directly related to their protection performance. Low melting point alloys (such as lead-antimony alloys) are the most commonly used core materials, while glass, ceramics, aluminum alloys and organic composite materials provide diversified solutions according to specific application scenarios.
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- 2025-03-13
Working principle of fuse
The working principle of fuse is mainly based on the thermal effect of current and the physical properties of metal conductor expansion due to heat.
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