In today’s modern electrical networks, low voltage protection plays a vital role in ensuring system reliability, equipment durability, and human safety. Whether in residential, commercial, or industrial applications, proper arrangement of low voltage protection devices can significantly reduce the risk of short circuits, overloads, and electrical fires.
Low voltage protection refers to a group of electrical devices designed to prevent damage caused by abnormal voltage conditions or excessive current flow in circuits operating typically below 1000V AC. Common protection devices include:
Each component contributes to isolating faults, limiting current, or suppressing transient overvoltage, thereby ensuring continuous and safe power distribution.
1).Identify System Requirements
Start by analyzing the voltage level, load type, and environmental conditions. For example, outdoor or underground systems require weatherproof components and corrosion-resistant materials.
2).Select Suitable Protection Devices
Use reliable fuses, surge arresters, and connectors rated for your specific application. Jera Line’s low voltage accessories are tested according to IEC standards and designed for long-term operation even in harsh environments.
3).Coordinate Protection Levels
Combine primary and secondary protection—such as surge arresters for overvoltage and fuse holders for overload protection—to create a layered safety system.
4).Ensure Proper Installation
Use mechanical shear bolt lugs or insulation piercing connectors to ensure stable and low-resistance electrical connections. Correct installation reduces overheating and power loss.
5).Regular Inspection and Maintenance
Periodically check connections, replace worn components, and verify the performance of protection devices to maintain electrical safety and reliability.
Yuyao Jera Line Co., Ltd specializes in designing and manufacturing low voltage electrical accessories and protection equipment for power distribution networks. Our products, such as mechanical lugs, fuse holders, and surge arresters, are widely applied in low voltage systems to provide dependable safety and performance.
Insulation Piercing Fuse Holder FHp 450-2258
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Product code |
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Cable size,mm2 |
4-50 |
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Fuse cassette size,mm |
22*58 |
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Voltage |
AC:0.4-1 |
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Rated current |
- |
Features
The Insulation Piercing Fuse Holder is designed to provide reliable overcurrent protection and safe branching connections in low voltage electrical networks. It allows quick installation without the need to strip cable insulation, using sharp metal teeth that pierce the insulation and establish a secure electrical contact.
Besides,a surge arrester played an important role in electric power system. A surge arrester is an essential protective device widely used in the electrical power industry to safeguard equipment and systems from transient overvoltage events, such as lightning strikes or switching surges. It ensures the reliability and safety of electrical networks by limiting excessive voltage and diverting surge energy safely to the ground.
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Product code |
|||
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Max allowable voltage,V |
280 |
500 |
660 |
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Voltage protection level,V |
1100 |
1680 |
2465 |
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Nominal discharge current,kA |
10 |
10 |
5 |
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Maximum discharge current,kA |
40 |
40 |
35 |
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Short-circuit withstand capability,kA |
4.5 |
4.5 |
4.5 |
Features
There are many excellent supplier in the market,why choose Jera Line as your supplier among numerous suppliers?
Jera Line owns a direct factory location in China,Jera Line established in 2012 which manufactures solutions of products,where we design, produce,and provide professional solution about the power distribution in electrical industry.
Jera line has established business relationship with more than 30 countries,and received good feedback from customers on quality.With years of export experience, we understand international standards and customer requirements very well.
Jera Line, we provide customization Options per project requests, we can do product development, laser marking and carton box stickers based on customer logos.
Jera Line has own in-house laboratory with testing equipment, from product development and the final production, the engineers has rigorously quality control, ensuring reliable performance, mechanical strength with standards
Choosing JERA LINE means choosing reliability, quality, and a partner committed to helping your business thrive. With our high-quality products and customer-focused approach, you can focus on what matters most—growing your business with confidence.
Please don’t hesitate to contact us if you are interested in our products!







