Type 1 Surge Protection Device – Reliable Lightning Surge Arrester for Service Entrance
![GANDIAN Type 1 SPD with labeled callouts showing surge modules, remote signaling contact, and compact DIN-rail housing]
Protect your facility’s main distribution board with our Type 1 / Class I surge protection device, engineered for direct lightning current handling and superior surge suppression.
Core Specifications:
Type: Class I Surge Protective Device (SPD)
Iimp (10/350 µs waveform): Up to 25 kA per pole
In (8/20 µs waveform): 20 kA nominal discharge current
Imax (8/20 µs waveform): 40 kA maximum discharge current
Voltage Protection Level (Up): < 1.5 kV for minimal equipment stress
Max Continuous Operating Voltage (Uc): 385 V AC
Certifications: IEC/EN 61643-11 Class I, CE, UL 1449 Type 1 (optional)
Designed for installation at service entrances and main boards in commercial, industrial, and residential buildings, this Class I surge arrester offers peace of mind against direct lightning strikes and surge events.Request a Quote or Download the Datasheet to learn more about integrating this high-energy surge diverter into your protection strategy.
Key Features & Benefits of Type 1 Surge Protection Device
Our Type 1 surge protection device (SPD) is built to handle the toughest lightning impacts and keep your systems safe and running smoothly. Here’s why it stands out:
High impulse current capacity: Designed for 10/350 µs waveform, it effectively diverts large lightning surge currents (Iimp) safely.
Low voltage protection level (Up): Minimizes stress on your sensitive equipment by keeping the let-through voltage as low as possible.
Pluggable, replaceable modules: Easy maintenance with visual fault indicators plus remote signaling contacts for real-time status alerts.
Compact DIN-rail mount design: Fits neatly into main distribution boards for quick and hassle-free integration.
Robust, flame-retardant housing: Built tough for safety and durability, with high-capacity terminals for reliable electrical connections.
Maintenance-free, long service life: Ensures continuous protection without regular upkeep.
Global standards compliance: Meets IEC 61643-11 Class I and other international certifications for use in lightning-prone areas worldwide.
Feature
Benefit
10/350 µs Waveform Impulse Current
Handles direct lightning strokes
Low Up (Voltage Protection Level)
Protects sensitive electronics
Pluggable Modules
Quick replacement, less downtime
Remote Signaling Contacts
Easy monitoring and alarms
DIN-Rail Compact Design
Saves panel space, simple installation
Flame-Retardant Housing
Improved safety and longevity
Maintenance-Free
Lower running costs
Certified to Global Standards
Reliable protection globally
This Type 1 SPD delivers dependable, high-energy surge protection right at your service entrance or main board, making it ideal for buildings exposed to lightning or overhead power lines. For seamless integration with other electrical safety gear, it pairs well with transfer switch solutions like our power transfer switch range.
Technical Specifications of Type 1 Surge Protection Device
Here’s a clear snapshot of the electrical and environmental specs for our Type 1 SPD lightning arrester, designed for reliable surge protection in lightning-prone areas.
Parameter
Value/Range
Note
Max Continuous Operating Voltage (Uc)
275 V to 440 V AC
Depends on model
Lightning Impulse Current (Iimp) per pole
Up to 100 kA (10/350 µs waveform)
Handles powerful lightning strikes
Nominal Discharge Current (In) (8/20 µs)
20 kA to 40 kA
Repeated surge handling
Max Discharge Current (Imax) (8/20 µs)
Up to 40 kA
Peak short-duration surges
Voltage Protection Level (Up)
≤ 1.5 kV
Low let-through voltage protects equipment
Response Time
< 25 ns
Fast action to clamp surges
Short-Circuit Withstand Rating
Up to 25 kA
Ensures device safety under faults
System Compatibility
Suitable for single-phase, and three-phase + Neutral (3+N) systems
Compatible with earthing types: TT, TN-S, TN-C-S, IT
Configuration Options
Flexible pole combinations:
1+0
1+1
2+0
3+1
4+0 poles
Environmental Specs
Feature
Details
Operating Temperature
-40°C to +85°C
IP Protection Rating
IP20 to IP40 (depending on model)
Housing Material
Flame-retardant, impact-resistant
This compact DIN rail Type 1 SPD fits neatly into main distribution boards, making installation and replacement straightforward, while providing robust protection against direct lightning surges.For more details on similar products and installation guidance, check our Type 2 panel mount SPD features and explore compatible solutions.
Applications & Installation of Type 1 Surge Protection Device
Our Type 1 SPD lightning arrester is designed primarily for installation at the service entrance or main distribution boards of commercial, industrial, and residential buildings where external lightning risks or lightning protection systems (LPS) are present. This Class I surge protective device provides essential protection against direct lightning strikes and high energy surges.
It’s especially recommended for buildings with overhead power lines, exposed outdoor locations, data centers, hospitals, and factories—anywhere the risk of lightning-induced surges is high.
For proper installation:
Mount the device on the line side of the main distribution board.
Use short conductor lengths, ideally less than 0.5 meters, to minimize surge let-through.
Include appropriate backup fuses or overcurrent protection devices to safeguard the SPD.
Follow wiring diagrams specific to your earthing system type — TN, TT, or IT — to ensure system compatibility.
Ensure coordination with downstream surge protectors such as Type 2 or combined Type 1+2 devices to create a layered defense.
For more info on complementary surge protection at the sub-distribution level, check out our range of Type 2 surge protective devices.This approach guarantees a robust lightning surge arrester setup that protects sensitive equipment and maintains system reliability under severe conditions.
Standards & Certifications
Our Type 1 surge protection device fully complies with international standards, ensuring reliable and safe performance in lightning-prone areas. It meets the IEC/EN 61643-11 Class I / Type 1 requirements and aligns with IEC 62305 standards for lightning protection zones. This guarantees it’s built to handle direct lightning surges effectively.The device also bears essential marks like CE certification and an optional UL 1449 Type 1 listing, along with adherence to national electrical codes across multiple markets. It undergoes rigorous testing, including 10/350 µs waveform verification, to confirm its surge handling capacity and low let-through voltage levels.
For more details on high-quality surge protection, see our related Type 2 AC Surge Protection Devices designed to complement Type 1 SPDs in comprehensive lightning protection systems.
Why Choose GANDIAN Type 1 Surge Protection Device
GANDIAN’s Type 1 SPD stands out for its superior surge handling and low let-through voltage (Up), ensuring your equipment is protected from powerful lightning strikes and transient surges. This Class I surge protective device is designed for reliable protection in high-lightning areas, such as commercial buildings, data centers, and industrial sites prone to direct lightning impact.
Key Benefits at a Glance
Feature
Benefit
High impulse current handling
Safeguards against direct lightning strikes using 10/350 µs waveform support
Low let-through voltage (Up)
Minimizes voltage stress to connected devices
Pluggable, replaceable modules
Easy maintenance with visual fault indication and remote signaling options
Compact DIN-rail design
Seamless integration into main distribution boards
Robust, flame-retardant housing
Long-term durability and safety
Certified for global standards
Models / Variants Comparison Table
Here’s a clear comparison of our Type 1 surge protection device models, covering key specs like impulse current, voltage levels, and special features. We offer both single-phase and three-phase variants to suit diverse installation needs.
Model Code
Poles / Configuration
Iimp (kA) 10/350 µs
In (kA) 8/20 µs
Up (kV)
Uc (V)
Features
GND-T1-SPD-1P
1+0 (Single-phase)
25
20
≤ 1.5
385
Remote signaling contact, N-PE protection
GND-T1-SPD-1P1
1+1 (Single-phase)
40
25
≤ 1.2
385
Pluggable module, Visual fault indication
GND-T1-SPD-2P
2+0 (Two poles)
40
25
≤ 1.3
385
Remote signaling, High-capacity terminals
GND-T1-SPD-3P1
3+1 (Three-phase + N)
50
30
≤ 1.2
440
Replaceable modules, Compact DIN-rail design
GND-T1-SPD-4P
4+0 (Four poles)
50
30
≤ 1.3
440
Visual fault indicator, Flame-retardant housing
Each model ensures robust lightning surge arrester performance with Class I surge protective device certification and IEC 61643-11 compliance. Options like remote signaling contacts and N-PE protections enhance monitoring and safety.For best results, choose the model aligned with your system configuration and surge handling needs at the main distribution board or service entrance. Our protective devices integrate easily with standard wiring and distribution setups—similar in approach to other protective components like fuse links found in plastic distribution boxes you might be using. For more about compatible distribution setups, visit our plastic distribution box page.
Downloads & Resources
Access all the essential documents for our Type 1 surge protection device right here. Whether you’re installing a service entrance surge protector or maintaining your main distribution board surge protector, these resources help you get the job done smoothly.
Datasheet PDF — Detailed specs on Iimp, In, Up, Uc, and more for the Class I surge protective device
Wiring diagrams — Clear layouts for TN, TT, and IT earthing systems to support correct integration
Certificates — Compliance proof with IEC 61643-11 Class I / Type 1 standards and other certifications
Surge protection selection guide — Helps you choose the right lightning surge arrester based on your needs
These materials are designed to support easy installation and ongoing maintenance of your DIN rail Type 1 SPD. For comprehensive protection strategies, explore our range of combined Type 1+2 devices and detailed product documents at GANDIAN’s Type 1 SPD product page.
FAQs About Type 1 Surge Protection Device
Question
Answer
What’s the difference between Type 1 and Type 2 SPD?
Type 1 SPD is designed for direct lightning strikes and installed at the service entrance. It handles high impulse currents (10/350 µs). Type 2 SPD protects downstream equipment from residual surges and switching spikes, typically installed in sub-distribution boards.
When do you need a Type 1 SPD?
Use a Type 1 SPD if your building is exposed to direct lightning or has an external lightning protection system (LPS). It’s essential at the main distribution board for commercial, industrial, or residential sites in lightning-prone areas.
How to test or maintain the device?
Type 1 SPDs usually require minimal maintenance. Check for visual fault indicators regularly and test remote signaling contacts if available. Replace the pluggable module if an alarm or fault is seen for continued protection.
Is this Type 1 SPD compatible with existing electrical panels?
Yes, most Type 1 SPDs, especially compact DIN rail designs, fit standard main distribution boards and support various earthing systems (TN, TT, IT). Always verify electrical ratings and conductor length requirements during installation.
For detailed product info, you can explore the full range of reliable surge protection devices suited for your setup.
Related Products
To complement our Type 1 surge protection device, explore GANDIAN’s range of Type 2 SPDs designed for sub-distribution boards. These devices offer efficient downstream protection and work seamlessly with main distribution board surge protectors.For comprehensive protection, consider our combined Type 1+2 devices, which integrate direct lightning strike defense with secondary surge suppression in a single compact unit.
We also offer data and signal line protectors, essential for safeguarding sensitive electronic communication lines from transient surges.Each product is designed to meet global standards and offers reliable surge arresting solutions tailored to your facility’s needs. For more detailed product choices, check out our G20 BC 4+5 Type 12 Surge Protective Devices or explore compatible accessories like our residual current circuit breakers with overcurrent protection.
Get in Touch with GANDIAN for Type 1 Surge Protection Device Solutions
Need expert advice or a custom solution for your Type 1 surge protection device? Contact our sales team today to discuss your project requirements, request a quote, or get detailed technical support. Whether you need help selecting the right Class I surge protective device or want to explore customization options, we’re here to assist.
Reach out now for:
Personalized product recommendations
Technical consultation on lightning surge arrester integration
Support with installation or compatibility questions
Protect your main distribution board or service entrance with reliable GANDIAN surge protectors designed for high-energy lightning risks. Don’t hesitate—secure your electrical systems with expert-backed protection.Explore our range alongside reliable miniature circuit breakers for a complete safety solution.
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