DC Surge Protection Device
Protect solar DC circuits from transient overvoltages with IEC-compliant surge protection devices.
- IEC61643-31 compliance for international standards IEC61643-31 compliance for international standards
- Maximum discharge current up to 40kA Maximum discharge current up to 40kA
- Maximum continuous operating voltage (Uc) from 500V to 1500V Maximum continuous operating voltage (Uc) from 500V to 1500V
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Family Catalog
DC Surge Protection Device SKU Pages
This family belongs to Solar Energy System. Open a product detail page below for detailed specifications, files, and inquiry access.
Family Overview
Selection And Application Context
Our selection of DC Surge Protection Devices offers robust defense for solar PV installations across various scales and environments. Compliant with IEC61643-31, these SPDs are engineered for high performance and durability. Key specifications include a maximum discharge current of 40kA and a wide maximum continuous operating voltage (Uc) range from 500V to 1500V, accommodating diverse system requirements. The voltage protection level (Up) is maintained at <=3.8 kV, ensuring effective safeguarding.
Designed for ease of maintenance and system flexibility, our DC SPDs feature pluggable and replaceable modules. This design allows for quick and efficient replacement of protection modules without needing to disconnect the entire device, minimizing downtime. Available configurations include 2P and 3P poles, providing options suitable for different circuit designs within solar combiner boxes or inverter inputs. These devices are ideal for deployment in solar projects across Asia, Europe, South America, Africa, and Oceania, where reliable overvoltage protection is paramount for system longevity and performance.
Selection Guide
How to choose the right solar DC protection setup
Select by DC protection function, isolation method, and system integration need.
Step 2: Choose isolation and connection
Step 3: Choose integration level
Select one option in each step to preview matched products.
Feature
Why choose our DC Surge Protection Device?
IEC61643-31 compliance for international standards
IEC61643-31 compliance for international standards
Maximum discharge current up to 40kA
Maximum discharge current up to 40kA
Maximum continuous operating voltage (Uc) from 500V to 1500V
Maximum continuous operating voltage (Uc) from 500V to 1500V
Voltage protection level (Up) <=3.8 kV
Voltage protection level (Up) <=3.8 kV
Use Cases
Typical Applications
Utility-scale solar power plants
Suitable for low-voltage distribution and panel integration projects.
Commercial and industrial rooftop solar installation...
Best for offices and commercial electrical panels.
Residential solar PV systems
Best for homes and basic distribution boards.
Solar combiner boxes
Suitable for low-voltage distribution and panel integration projects.
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TDS7 DC Surge Protection Device
TDS7 belongs to the dc surge protection device range for solar energy system applications. The model is built around IEC 61643-31 requirements with operating references of application-specific DC voltage and current options matched to system design
IEC 61643-31
Best for: PV surge protection at combiner and... / Lightning and transient protection i...
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TDS4 DC Surge Protection Device
TDS4 belongs to the dc surge protection device range for solar energy system applications. The model is built around IEC 61643-31 requirements with operating references of application-specific DC voltage and current options matched to system design
IEC 61643-31
Best for: PV surge protection at combiner and... / Lightning and transient protection i...
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TDS5 DC Surge Protection Device
TDS5 belongs to the dc surge protection device range for solar energy system applications. The model is built around IEC 61643-31 requirements with operating references of application-specific DC voltage and current options matched to system design
IEC 61643-31
Best for: PV surge protection at combiner and... / Lightning and transient protection i...
FAQ
Frequently Asked Questions
What is a DC Surge Protection Device (SPD) and why is it needed in solar systems?
A DC SPD is an electrical device that protects solar PV systems from transient overvoltages, such as those caused by lightning strikes or switching operations. It diverts excess...
What does IEC61643-31 compliance mean for these SPDs?
IEC61643-31 is an international standard that specifies the requirements and tests for SPDs connected to photovoltaic installations. Compliance ensures that the device meets rigorous performance and safety criteria...
What voltage ranges do your DC SPDs support?
Our DC Surge Protection Devices are designed to operate with a maximum continuous operating voltage (Uc) ranging from 500V to 1500V, accommodating a wide spectrum of solar PV...
Are the modules in these DC SPDs replaceable?
Yes, our DC Surge Protection Devices feature pluggable and replaceable modules. This design allows for easy maintenance and replacement of the protective elements without needing to de-energize or...
What is the maximum discharge current (Imax) for these devices?
Our DC Surge Protection Devices have a maximum discharge current (Imax) of 40kA, indicating their capacity to safely divert significant surge energy away from your solar system.
Project Inquiry
Need Reliable DC Surge Protection for Your Solar Project?
Contact Engineer to discuss your specific requirements or request a detailed quote for our IEC-compliant SPDs.
Not sure which model to choose? Talk to an engineer
Visual References
Family Gallery
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INDUSTRIAL INTEGRITY
STANDARD COMPLIANCE
All components meet IEC 60947-2 and CE certification standards. ISO 9001:2015 certified manufacturing.
OEM/ODM CAPABILITIES
Custom electrical configurations and private labeling for global infrastructure projects.
ENGINEERING ASSETS
Immediate access to 2D/3D CAD models, STEP files, and detailed technical datasheets.
REQUIRE CUSTOM SPECIFICATIONS?
Consult with our lead engineers for a specialized BOM or system architecture review.