Spark Gap Surge Protection and Spark Gap Arrester

Spark Gap Surge Protection Device Manufacturer

LSP is a leading manufacturer of Spark Gap Surge Protection in China, specializing in high-quality overvoltage protection devices. We provide reliable spark gap surge protection solutions for a wide range of applications.

With extensive knowledge of international standards, LSP produces millions of overvoltage protection devices annually. Our products, including advanced spark gap surge arresters, are engineered to meet diverse market requirements.

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Type 1 Spark Gap Surge Protection

Spark gap surge protection is one of type 1 lightning current arrester. They make it possible to dissipate the high energies and surge currents generated by lightning strikes to ground in a fraction of a second.

Spark Gap Type 1 Surge Protection Device SPD FLP50GR-275-3S+1

Type 1 Spark Gap Surge Protection Device FLP50GR-275/3S+1

Type 1 Spark Gap Surge Protection Device FLP50GR-275/3S+1, Iimp 50kA, ensures robust surge protection...

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Spark Gap Type 1 Surge Protection Device SPD FLP25GR-275-3S+1

Type 1 Spark Gap Surge Protector FLP25GR-275/3S+1

Type 1 Spark Gap Surge Protector FLP25GR-275/3S+1 offers fast, reliable surge protection with 25kA nominal...

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Spark Gap Type 1 Surge Protection Device SPD FLP25GK-275-3S+1

Type 1 Spark Gap Surge Protection Device FLP25GK-275/3S+1

Type 1 Spark Gap Surge Protection Device FLP25GK-275/3S+1 delivers 25 kA nominal (8/20 μs) and 100 kA...

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Spark Gap Type 1 Surge Protection Device SPD FLP50GR-275-3S

Type 1 Spark Gap Surge Protection Device FLP50GR-275/3S

Type 1 Spark Gap Surge Protection Device FLP50GR-275/3S, with 50kA impulse rating, safeguards three-phase...

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Spark Gap Type 1 Surge Protection Device SPD FLP25GR-275-3S

Type 1 Spark Gap Surge Protection Device FLP25GR-275/3S

Type 1 Spark Gap Surge Protection Device FLP25GR-275/3S offers 25kA impulse protection, IEC compliance,...

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Spark Gap Type 1 Surge Protection Device SPD FLP25GK-275-1S+1

Type 1 Spark Gap Surge Protector FLP25GK-275/1S+1

"Engineered for versatile TT and TN-S networks, this robust Type 1 Spark Gap Surge Protector provides...

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Key Applications of Spark Gap Surge Protection

To meet the needs of different application scenarios, our R&D team continuously advances spark gap surge protection technology, developing smarter and more reliable protection solutions to ensure long-term system safety and stable operation.

Domestic/Off-grid Photovoltaic

A Surge Protection Device (SPD) ensures a stable and safe power supply for both domestic and off-grid photovoltaic systems.

Radiocommunication

Spark Gap Arresters' high discharge capacity makes them ideal for protecting antennas and sensitive equipment in elevated, lightning-prone locations.

Solution surge protector device for solar farm

Solar Farms

Large-scale solar farms use advanced Surge Protection Devices to safeguard inverters and maintain continuous energy production.

E-mobility

EV charging infrastructure depends on high-performance SPDs to protect charging stations from transient surges.

Industrial automation systems adopt 24V / 48V DC power, including PLC, HMI, sensors, actuators and other equipment. Type 1+2 DC SPD is installed at control cabinet DC power entrance, preventing switching surges and induced lightning from damaging equipment. Open circuit failure mode avoids short-circuit causing production line shutdown.

Industry Photovoltaic

Industrial PV installations rely on robust Surge Protection Devices to prevent costly downtime and equipment failure.

Energy Storage Systems

A reliable Surge Protection Device protects battery storage systems from dangerous overvoltages and enhances operational safety.

Surge Protection Device for Wind Turbine

Wind Turbine Installation

Wind turbines integrate Surge Protection Devices to defend control and communication circuits from lightning-induced surges.

Water Treatment

Surge Protection Devices protect sensitive monitoring and control electronics in water treatment facilities.

Security Systems

A high-quality SPD protects security cameras, access control systems, and alarm systems from unexpected voltage spikes.

Agrivoltaic

Agrivoltaic installations use Surge Protection Devices to ensure stable operation of combined agricultural and PV equipment.

Data Center

Critical data center uptime depends on robust SPDs to safeguard servers, UPS, and network equipment.

LED Lights

A compact Surge Protection Device protects LED lighting systems from transient surges and extends their service life.

Reasons Why LSP's Spark Gap Surge Protection Stand Out

FLP50 and FLP25 series Type 1 spark gap surge protection is particularly useful in a high lightning density area where the risk of heavy surge current or even direct strike is high (eg: buildings equipped with lightning rods).

Isostatic Graphite

The graphite in Spark Gap Surge Protection is compressed 360°, resulting in a uniform internal structure with consistent strength and electrical conductivity in all directions, effectively preventing cracks or voids commonly found in conventional graphite.

Square Graphite Sheets

Thanks to its large effective area, stable fixation, high space utilization, and uniform stress and heat distribution, the multi-layer graphite spark gap surge protection achieves stable current flow and consistent heat dissipation.

High-Capacity Spark Gap Surge Protection

The Spark Gap surge protector offers an Impulse Discharge Current of 50 kA (10/350 μs), enabling it to safely divert high-energy lightning currents and provide a dependable first line of protection for electrical systems against excessive surge stress.

Thick Metal Components

We use metal lead pins with 3.1 mm thickness and 8.2 mm width—80% above average—allowing spark gap surge arresters to handle high potentials without breaking.

Visual Status Indicator

The Spark Gap Surge Protection Device is equipped with a visual status indicator that provides real-time feedback on the SPD’s operating condition, ensuring that critical electrical equipment remains fully protected during lightning strikes or surge events.

Flame Retardant Ability

The PA6+GF30% flame-retardant housing withstands high temperatures, guaranteeing safe and reliable performance under demanding conditions.

Rigorous Testing

All our spark gap surge arresters undergo extensive tests, including lightning impulse, thermal stability, 48-hour salt spray, and glow wire tests, guaranteeing reliable and safe performance.

Comprehensive Spark Gap Surge Protection You Can Trust

At LSP, every spark gap surge protection is manufactured under a strict quality management system to ensure consistency and durability in mass production. LSP’s global supply chain and ISO-certified factories enable us to deliver high-performance surge protection devices worldwide with proven reliability, scalability, and long-term stability.

Professional Manufacturing

Our production process strictly adheres to ISO9001 to ensure compliance and efficiency. Our surge protectors have passed TUV, CB and CE certifications, ensuring that you can use them directly in your system or sell them globally with confidence.

5 Years Worry-free Warranty

We aim to provide you with hassle-free purchasing support. Our spark gap surge protector have a 5-year warranty. We offer a 7-day return and 30-day exchange policy. Shipping costs and customs duties are borne by us during the warranty period.

Provide the Most Suitable Solution for You

We have independent surge protector R&D capabilities. Our R&D team with 20 years of experience will provide you with technical support and help you complete each stage of your project.

Marketing Support

We offer more to our valued customers. Including high-quality corrugated cardboard packaging, 3D animation materials for marketing, and regulatory and certification support.

Deliver on Time

Our experienced team manages inventory and production, maintaining a steady stock of materials to handle peak periods. We complete and ship regular spds orders within 15 days and custom orders within 30 days, maintaining a 96% on-time rate!

We aim to provide the market with the safest and most reliable spark gap surge protection products, catering to your needs for direct use or global sales. All surge protector products are manufactured under strict quality management and undergo comprehensive and rigorous testing before shipment to ensure quality and reliability. Our SPD products are certified by TUV, CE, CB.

Surge Protection Device Manufacturer LSP automated production machine

Spark Gap Surge Protection Device SPD 5 Years Worry-free Warranty

Spark Gap Surge Protection Device SPD Thick Metal Parts

Spark Gap Surge Protection Device SPD You Can Trust

Why Choose LSP's Spark Gap Surge Protection?

With over 15 years of expertise focused on surge protection, LSP is dedicated to delivering reliable solutions. We combine deep professional experience with a strong commitment to quality and service, ensuring our spark gap surge protection solutions are a trusted choice for a wide range of applications.

Professional

With over 15 years of experience in surge protection, LSP is dedicated to delivering reliable spark gap surge protection for global customers.

Quality

Our products are backed by a 5-year warranty, reflecting LSP’s commitment to quality and customer satisfaction.

Reliable

We use high-quality MOVs and premium components to ensure outstanding performance and long-term reliability.

Service

Our professional team provides high-quality 3D animations and renderings to support your online and offline marketing campaigns.

Solution

LSP offers comprehensive lightning and surge protection system solutions, ensuring the safety and reliability of your electrical infrastructure.

Certificate

All products comply with international standards, including TUV, CB, and CE certifications, guaranteeing top quality and safety.

Multi-carbon Spark Gap, Robustness and Endurance in Perfect Balance

Engineered with a multi-carbon electrode design, this spark gap ensures exceptional durability, stable performance, and reliable arc control.

Advantages of Spark Gap Surge Protection

No aging, even with multiple pulse loading
Even the high energies of several pulse trains in a short time are safely dissipated
Particularly high performance on an overall width of just 1 HP per position
Fast response time and low residual voltage, very good protection of the electrical system

Structure of the Spark Gap with Multi-carbon Technology

The multi-carbon spark gap uses particularly robust materials. The energy to be dissipated is distributed ideally over the entire installation space. As a result, it shows no signs of aging, even after multiple loads that exceed the normative requirements.

The multi-carbon spark gap is the first to provide reliable and durable protection against lightning currents and surges of any kind.

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Animation of the Spark Gap

Learn more about multi-carbon spark gaps in this animation. What is the difference in the way it works? What are the basic advantages? The animation gives a clear and concise overview of our new spark gap technology.

Spark Gap Surge Protection – Optimized & Efficient Production

Experience the reliability of our Spark Gap Surge Protection, crafted through an optimized and efficient production process. Every graphite component is precisely compressed and assembled to ensure uniform internal structure, consistent conductivity,

Spark Gap Surge Protection Device Wiring Diagram & Installation

Spark Gap Surge Protection Device should be connected in parallel in the main distribution board to safely discharge high-energy lightning currents.

Spark Gap Surge Protection Wiring Diagram & Installation

Spark Gap Surge Protection Device is typically installed in the building’s main distribution board and serves as a Type 1 lightning protection device.

Wiring Diagram for Remote Signaling Terminals on a Spark Gap Surge Protection Device

Spark Gap Surge Protection Device (SPD) can be equipped with remote signaling terminals to enable real-time monitoring and management of its operational status.

Client

What Our Customers Say about LSP's Spark Gap Surge Protection

Our Spark Gap Surge Protection have received widespread praise from users worldwide. Many engineers and project managers trust our Spark Gap Surge Protection and highly praise their stability and reliability.

John Doe

CEO

“In commercial and industrial applications, LSP’s spark gap arrester consistently meet our quality standards, and we consider them a trusted long-term supplier.”

Evan Johnson

Telecommunications Engineering Manager

“We always receive LSP spark gap arrester on schedule. Their packaging is secure, and the spark gap arrester perform reliably across multiple installations.”

David Williams

PV Equipment Distributor

“LSP’s spark gap arrester have earned our long-term trust and the high recognition of our partners, thanks to their excellent durability and high surge-current handling capability.”

Surge Protector Device Testimonial - Tim Wolstenholme

Alex Morgan

Electrical Contractor

“LSP’s surge protection devices are easy to install and always delivered on time. Great packaging and consistent performance across all our commercial projects.”

Surge Protector Device Testimonial - Edward Woo

David Thompson

Senior Procurement Manager

“We’ve worked with LSP for over two years. Their SPDs are well-built, fully certified, and always meet our quality expectations. A reliable long-term partner.”

Surge Protector Device Testimonial - Frank Tido

Alessandro Moretti

International Distributor

“LSP makes collaboration easy. Their team is responsive, knowledgeable, and the product support is excellent. Our customers in Italy trust their surge protection solutions completely.”

See why professionals trust LSP

FAQ About Spark Gap Surge Protection

What is spark gap technology?

Spark Gap Technology is a surge protection method that uses an air gap between two electrodes to discharge excessive voltage.

When a surge or lightning voltage exceeds a set threshold, the air becomes ionized, creating a conductive path that safely diverts the overvoltage to the ground.

It is commonly used in Type 1 surge protective devices (SPDs) to handle high-energy lightning currents. While it offers strong protection against direct lightning strikes, its operating voltage is relatively high, making it less suitable for sensitive electronic equipment.

What is a spark gap arrester?

A spark gap arrester is a device that protects electrical equipment by discharging overvoltage through an air gap between two electrodes.

When lightning or surge voltage exceeds the breakdown voltage of the gap, the air becomes ionized, creating a conductive path that allows the current to discharge safely to the ground, preventing equipment damage.

It is mainly used in high-voltage transmission systems and primary lightning protection for buildings, featuring a simple structure and strong surge current capability.

What is the purpose of a spark gap?

The purpose of a spark gap is to discharge excessive voltage to the ground through air ionization when the voltage exceeds a set threshold, thereby protecting electrical equipment from lightning or surge damage.

Spark gap remains open under normal voltage, but when a lightning strike or transient overvoltage occurs, it quickly breaks down and conducts the current safely to the ground.

What are the main differences between MOVs and Spark Gaps in SPDs?

Comparison Item	MOV (Metal Oxide Varistor)	Spark Gap
Working Principle	Uses a semiconductor material whose resistance drops sharply when voltage exceeds a threshold, allowing surge current to pass.	Uses an air gap between electrodes; when voltage exceeds the breakdown voltage, air ionizes and conducts the surge to ground.
Response Time	Very fast (nanoseconds)	Slower (microseconds)
Discharge Capacity	Moderate – suitable for medium-energy surges.	Very high – ideal for high-energy lightning currents.
Residual Voltage	Lower – provides better protection for sensitive electronics.	Higher – not suitable for delicate equipment.
Energy Absorption	Can absorb multiple surges until degradation occurs.	Handles large surges but needs time to recover between discharges.
Use Position in SPD System	Typically used in Type 2 SPDs or secondary protection stages.	Typically used in Type 1 SPDs or primary lightning protection.
Maintenance	May degrade over time and require replacement.	Long lifespan, minimal aging, but slower operation.

What type of SPD is a Spark Gap Surge Protection?

It is the core component of a Type 1 Surge Protective Device (SPD). These devices are installed at the main power entry point of a building to protect against direct lightning strikes and their resulting high-energy surges.

What are the main advantages of a Spark Gap Surge Protection?

They offer an extremely high discharge capacity (10/350 µs), excellent resistance to aging after multiple large surge events, and some modern designs are very compact.

Why are SPD spark gaps often used in the telecom and power industries?

Due to their high discharge capacity, the surge protector spark gaps are the ideal choice for protecting critical assets in lightning-prone, exposed locations.

Does a Spark Gap Surge Protection require grounding?

Yes, proper grounding is critical for the effective operation of a Spark Gap Arrester.

What is the difference between a Spark Gap Arrester and a Gas Discharge Tube (GDT)?

A Spark Gap Arrester is typically used for high-energy surges, whereas a GDT is typically used for lower-energy applications and has a different internal structure.

Spark Gap Surge Protection and Spark Gap Arrester

Spark Gap Surge Protection Device Manufacturer

Type 1 Spark Gap Surge Protection

Key Applications of Spark Gap Surge Protection

Domestic/Off-grid Photovoltaic

Radiocommunication

Solar Farms

E-mobility

Industry Photovoltaic

Energy Storage Systems

Wind Turbine Installation

Water Treatment

Security Systems

Agrivoltaic

Data Center

LED Lights

Reasons Why LSP's Spark Gap Surge Protection Stand Out

Comprehensive Spark Gap Surge Protection You Can Trust

Why Choose LSP's Spark Gap Surge Protection?

Professional

Quality

Reliable

Service

Solution

Certificate

Multi-carbon Spark Gap, Robustness and Endurance in Perfect Balance

Advantages of Spark Gap Surge Protection

Structure of the Spark Gap with Multi-carbon Technology

Animation of the Spark Gap

Spark Gap Surge Protection – Optimized & Efficient Production

Spark Gap Surge Protection Device Wiring Diagram & Installation

Spark Gap Surge Protection Wiring Diagram & Installation

Wiring Diagram for Remote Signaling Terminals on a Spark Gap Surge Protection Device

Client

What Our Customers Say about LSP's Spark Gap Surge Protection

John Doe

Evan Johnson

David Williams

Alex Morgan

David Thompson

Alessandro Moretti

FAQ About Spark Gap Surge Protection

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