Surge protection device manufacturer
ONESTOP is a leading manufacturer of surge protection devices in the market. With over 19 years of experience in the electrical industry, we offer high-quality products at the most competitive prices.
What are our characteristics
Production technology
Customization and OEM/ODM
High performance-price ratio
Long term partnership
Customizable surge protection device
Explore our diverse range of customized surge protection devices, widely used in residential, commercial, and industrial power systems. We provide comprehensive solutions from basic lightning protection and transient overvoltage protection to high-level intelligent monitoring and remote management, helping you effectively resist surge surges, ensure safe equipment operation, and achieve stable and efficient power grid.
Lightning surge protection device
DC1000V surge protection device
Solar photovoltaic surge protection device
Wholesale high-quality SPD manufacturer
60kA three-phase AC lightning surge protection device
Customizable surge protection device AC 220V/385V
CE/CB certified DC surge protector factory direct sales
Outdoor high-quality 4-pole surge protection device
A brief introduction
WHY CHOOSE US
- Industry leading testing: Every surge protection device undergoes strict 100% international safety standard testing
- High quality materials: High quality components ensure longer service life and reliable performance
- Engineering Innovation: Our R&D team continuously improves SPD technology to enhance protection
- Global certification: Our entire SPD series has obtained IEC, CE, UL, and regional safety certifications
- Comprehensive support: from selection guidance to installation training and after-sales service
Why Choose Surge Protection Devices?
Surge protection devices are essential for anyone looking to protect their electronics from transient voltage spikes. These devices work by redirecting excess voltage, ensuring that your vital equipment remains safe. Here are some fantastic features you can expect:
Advanced Surge Prevention
Our devices employ the latest technology to prevent harmful surges from damaging your electronic devices. This means your valuable computers and appliances are always safe.
- Lightning Protection
- Overvoltage Protection
- Power Strip Integration
Cost-effective Solution
Investing in surge protection devices can save you significant amounts by reducing repair and replacement costs for damaged electronics. Protect your finances!
- Long-term Savings
- Insurance Reduction
- Endurance Tested
Multi-Device Protection
Support for multiple devices allows users to connect everything from computers to home theater systems, all protected by a single unit.
- Connect multiple devices
- Space-saving design
- Comprehensive protection
Reliable Warranty
Confidently protect your devices with a warranty that ensures your surge protection device is reliable and trusted for years to come.
- Manufacturer Warranty
- Quality Assurance
- Customer Support
The advantages of our surge protection device
Protecting an Electronic Device
Prevent transient overvoltage caused by lightning strikes, switch operations, etc. from damaging equipment and extending the service life of electronic devices
Extend equipment lifespan
Reduce the impact of transient voltage on equipment and minimize maintenance frequency and downtime losses caused by overvoltage faults
Multi level protection
SPD adopts a graded protection mechanism (such as first level, second level, and third level protection), which can gradually reduce surge energy and ensure equipment safety.
Wide applicability
Can be used in various environments such as home, office, industrial automation, communication base stations, data centers, power systems, etc
Efficient lightning protection
SPD has efficient lightning protection function, which can significantly reduce the impact of high-voltage impact caused by lightning strikes on buildings and equipment.
Easy installation
SPD devices can usually be directly integrated into distribution cabinets, sockets, cabinets, or circuit boards without the need for complex modifications, and are easy to install and maintain.
Get Your Free Sample!
We provide samples for free, you just need to tell us what you need
Not only manufacturers of surge protection devices
We not only produce high-quality surge protection devices (SPDs), but also provide diverse customization and value-added services to meet your unique distribution project needs. We focus on quality and innovation, ensuring that every customer can receive tailored solutions, professional technical guidance, and seamless support throughout the entire cooperation process, ensuring the safe and efficient operation of your power system.
Service Consultation
Whether your SPD requirements are for basic applications or complex projects, our team can provide professional advice and technical consultation. For high difficulty projects, we provide in-depth engineering support to ensure that you choose the best products and application solutions.
Product Recommendations
Not sure which SPD is suitable for your system? Our experts will provide free customized advice based on your specific operational and environmental requirements, ensuring that you receive the product that best meets your electrical protection needs.
Logistics Support
If you lack a reliable freight forwarder, we can arrange transportation from the factory to the project site at no additional cost. Our logistics team ensures timely and safe delivery, ensuring that your project proceeds as planned and minimizing downtime and delays.
Installation Support
Do you need installation assistance? Our technical team is always ready to answer your questions and provide practical support. For large-scale projects, we can even dispatch engineers to your site to provide on-site assistance
What are our clients saying
Hear from our satisfied customers about the benefits they’ve experienced from using surge protection devices.
Your trusted electrical equipment supplier
♥Wide selection
♥OEM Quality
♥100% Satisfaction Guarantee
Looking forward to working with you
FAQ
Find answers to some of the most common questions about surge protection devices.
What are surge protection devices?
Surge protection devices are designed to protect electronics from voltage spikes that cancause permanent damage.
How do surge protection devices work?
They divert excess voltage to the ground, preventing it from reaching your connected
electronics.
Why do l need a surge protection device?
Surge protection devices are essential for safeguarding valuable electronics from
unexpected power surges.
Can luse surge protection devices with all electronics?
Yes, these devices are compatible with a wide range of electronic appliances, ensuring
comprehensive protection.
Are surge protection devices easy to install?
Absolutely! Most surge protection devices are designed for easy plug-and-playinstallation.
What should l look for in a surge protection device?
Look for key features such as joule rating, response time, and the number of outlets for
optimal protection.
How often should l replace surge protection devices?
It’s recommended to replace surge protection devices every few years or after they have
absorbed significant surges.
Do surge protection devices come with a warranty?
Surge protection devices manufactured by ONESTOP provide a warranty service of 2 years or more
Can surge protection devices protect against lightning strikes?
Yes, quality surge protection devices can help protect your electronics during lightning
storms.
What is the difference between surge protectors and power strips?
While power strips allow you to plug multiple devices, surge protectors specificallysafeguard against voltage spikes.
Understand surge protection devices
Table of Contents
In power systems, electronic devices, and communication systems, surge protection devices (SPDs) are among the most crucial lines of defense against transient overvoltages and ensure equipment safety.
This article will delve into surge protection devices from their working principles, key components, classification, types of installation to industry applications, so as to enhance your understanding of the working mechanism and value of this “electronic security guard.”.
What is a surge protection device?
Surge protection device (SPD) is a device used to protect electrical appliances, power systems, and electronic equipment from transient overvoltage (surge) destruction. It can pass through very rapidly, transmitting high voltage surges to the ground wire so that equipment is not affected. SPD mainly protects against overvoltage caused by lightning strikes, power grid oscillations, and switch operations.
Working principle of surge protection device
Normal state: SPD is in a high impedance state and does not affect the operation of the circuit.
When a surge occurs, nonlinear components (such as MOV varistors) quickly conduct, discharge overvoltage to ground, and limit residual voltage within the equipment’s tolerance range.
Typical response time: up to 10 ⁻¹¹ seconds, ensuring fast protection
Core components of surge protection device
| Component Type | Functional Characteristics |
|---|---|
| Varistor (MOV) | Based on voltage sensitivity, clamps voltage and absorbs energy, suitablefor AC circuits. |
| Gas Discharge Tube (GDT) | Discharges current through ionized inert gas, withstands high voltage butresponds relatively slowly, commonly used in communication lines. |
| Transient VoltageSuppression Diode (TVS) | Fast response (ps level), low clamping voltage, suitable for protectingprecision electronic devices. |
| Common Mode Choke | Suppresses high-frequency common-mode interference, reduceselectromagnetic radiation impact on equipment. |
Classification and graded protection of surge protection devices
Partitioned based on work principle
Switch type voltage: e.g., gas discharge tube, for application in high-energy lightning current discharge (first level protection).
Limiting type voltage: e.g., varistors, for limiting the remaining voltage (second and third level protection).
Compound type: The combination of switch type and voltage limiting type for implementing multi-level protection
Classified by application scenario
Power SPD: protects power system equipment (such as transformers, distribution cabinets).
Signal SPD: Used for communication lines (Ethernet, RS485) and control systems.
Antenna feeder SPD: protects radio antennas from lightning interference
Graded protection strategy
Surge Protection Device (SPD) Function
Installation and wiring of surge protection devices
AC 1 type surge protector wiring
Single phase surge protector wiring diagram: The wiring involves connecting the SPD to L (live wire), N (neutral wire), and PE (protective grounding), typically located at the main circuit breaker or power entry point.
Installation of three-phase surge protectors: For three-phase systems, SPDs are connected to L1, L2, L3 (live wire), N, and PE.
AC 2 type surge protection device wiring
Single phase surge protector wiring diagram: SPD is connected to L, N, and PE, usually in the secondary distribution board following the main circuit breaker.
Three-phase surge protector installation: SPDs are connected to L1, L2, L3, N, and PE and integrated into distribution equipment.
AC 3 type surge protection device wiring
Single phase surge protector wiring diagram: SPD is connected to L, N, and PE, usually located at or near the power outlet of the terminal device,
Application scenarios of surge protection devices
Power sector: protect transformers and transmission lines from lightning strikes and overvoltage impacts during operation.
Communication base station: protect from lightning strikes that impact RF devices with the aid of antennas and power leads.
Industrial automation: ensuring consistent operation of high-accuracy machinery such as PLCs and sensors.
Intelligent building: integrated in building management systems to enhance reliability of subsystems such as security and lighting.
In the new energy industry: photovoltaic inverter and energy storage system overvoltage protection
Why choose ONESTOP surge protector
Here are some reasons why you chose ONESTOP:
1.ONESTOP has careful records in order to ensure that there are no errors in the surge protectors development, production, acceptance, and selling process.
2. First of all, we will only deliver and supply products after rigorous and rigorous surge protection testing to ensure the peak performance of surge protection devices.
ONESTOP provides environmentally friendly solutions to help our customers effectively control electrical, hydraulic, and mechanical power – safer, more efficient, and reliable.
4. Assuming that during the 18 month warranty period, the lightning protection system fails to function properly due to damage. In this case, ONESTOP will actively and responsibly initiate remedial measures, e.g., free repair or replacement of your lightning protection system. Post-warranty, we will provide paid repair facilities for the product
7.ONESTOP has over 100 products with the highest international standards of CCC, CE, CB, SAA, SEMKO, TUV, and Rosh.
We will strive to follow user requirements strictly to maintain high quality, high service, and swift accomplishment of delivery tasks.
