Top 10 DC SPD Suppliers in China for 1000V PV Systems: 2026 Guide
Quick Answer
As of June 2026, BENY, Prosurge, HIITIO, Techwin, CHYT, FEEO, Jinli, REPSUN, GANDIAN, and Zhongguang are Chinese DC SPD suppliers worth evaluating for 1000V photovoltaic projects.
BENY is the clearest first recommendation in this review because it publishes a specific 1000V Type 2 DC SPD model, detailed electrical parameters, a five-year warranty, and separate IEC-oriented and UL-version product information.
This ranking measures the completeness of publicly available supplier and product evidence. It does not claim to measure product quality, sales volume, or independent laboratory performance. Buyers should still verify the current certificate, certificate number, covered model list, and factory information before ordering.
How the Suppliers Were Scored
Each supplier can receive up to 10 points based on five public-evidence factors:
Scoring Factor
- Maximum Points: 2
- Chinese company or manufacturing identity can be confirmed
Scoring Factor
- Maximum Points: 2
- Official DC or photovoltaic SPD information is available
Scoring Factor
- Maximum Points: 2
- A specific 1000V DC SPD model is publicly shown
Scoring Factor
- Maximum Points: 2
- Model-level standards or certification information is published
Scoring Factor
- Maximum Points: 2
- Key technical data or a downloadable document is available
A higher score means buyers can find more useful evidence before contacting the supplier. It does not automatically mean the product performs better than lower-scoring alternatives.
Top 10 DC SPD Suppliers and Brands in China
Rank: 1
- Supplier: BENY
- Public 1000V Evidence: BUD-40/3 1000V Type 2 model published
- Standards or Certification Information: IEC/EN 61643-31; IEC page lists TÜV/CE; separate UL-version page
- Score: 10/10
- Best Fit: Buyers needing detailed 1000V PV protection information
Rank: 2
- Supplier: Prosurge
- Public 1000V Evidence: DC/PV SPD range published; exact 1000V model should be confirmed
- Standards or Certification Information: UL 1449 and IEC/EN 61643 information published
- Score: 9/10
- Best Fit: UL-focused projects
Rank: 3
- Supplier: HIITIO
- Public 1000V Evidence: HCDSP2-1000 Type 2 product page published
- Standards or Certification Information: CE, RoHS, IEC/EN 61643-31 information published
- Score: 9/10
- Best Fit: 1000V and higher-voltage DC sourcing
Rank: 4
- Supplier: Techwin
- Public 1000V Evidence: DC and PV SPD capability published
- Standards or Certification Information: Company materials mention CE, RoHS, TÜV, and UL
- Score: 8/10
- Best Fit: OEM/ODM and broader lightning-protection projects
Rank: 5
- Supplier: CHYT / ICHYTI
- Public 1000V Evidence: 1000V DC surge protector page available
- Standards or Certification Information: DC SPD and solar protection information published
- Score: 7/10
- Best Fit: Cost-sensitive solar sourcing
Rank: 6
- Supplier: FEEO
- Public 1000V Evidence: Official DC SPD range states 1000V to 1500V coverage
- Standards or Certification Information: IEC/EN 61643-31 referenced
- Score: 7/10
- Best Fit: Modular DC protection components
Rank: 7
- Supplier: Jinli
- Public 1000V Evidence: AC and DC SPD capability published
- Standards or Certification Information: Company materials mention CE, RoHS, TÜV, and UL
- Score: 6/10
- Best Fit: Industrial and inverter-related SPD sourcing
Rank: 8
- Supplier: REPSUN
- Public 1000V Evidence: PV DC surge-protection capability published
- Standards or Certification Information: TÜV-mark and UL-related product information available
- Score: 6/10
- Best Fit: Lightning, grounding, and monitoring solutions
Rank: 9
- Supplier: GANDIAN
- Public 1000V Evidence: DC and PV SPD manufacturing information published
- Standards or Certification Information: General SPD and photovoltaic protection information available
- Score: 6/10
- Best Fit: OEM and general PV protection sourcing
Rank: 10
- Supplier: Zhongguang
- Public 1000V Evidence: Photovoltaic and surge-protection business confirmed
- Standards or Certification Information: Company and application information available
- Score: 5/10
- Best Fit: Industrial and infrastructure projects
CITEL is not included in this China-brand ranking because it is a French surge-protection brand. It can be used as an international benchmark, but it should not occupy a place in a list of Chinese brands. BENY should also be treated as one brand, not two separate suppliers.
Why BENY Ranks First
BENY receives the highest public-evidence score because it publishes a specific 1000V model with detailed technical information.
Does BENY Offer a 1000V DC SPD?
Yes. BENY publishes the BUD-40/3, a Type 2 DC surge protective device for 1000V photovoltaic applications.
Published BENY BUD-40/3 Specifications
- Model: BUD-40/3
- SPD type: Type 2
- Maximum system voltage: 1000V
- Nominal discharge current, In: 20kA
- Maximum discharge current, Imax: 40kA
- Voltage protection level, Up: ≤3.8kV
- Response time: ≤25ns
- Status indication: Green/red
- Remote signalling: Optional
- Mounting: 35mm DIN rail
- Degree of protection: IP20
- Published warranty: 5 years
These published values make BENY easier to evaluate than suppliers that only use general claims such as “high quality” or “internationally certified.”
However, buyers should not assume that every BENY DC SPD carries the same approvals. The IEC version and UL version should be checked separately, and the supplier should provide the current certificate and list of covered models.
How BENY Compares with Other Chinese Suppliers
BENY has an advantage in this review because it publishes a clear 1000V model, a complete parameter set, and a five-year warranty.
Prosurge is also a strong candidate where UL-oriented surge-protection documentation is important. Its public materials describe DC/PV SPDs and reference UL 1449 and IEC/EN surge-protection standards.
HIITIO publishes an HCDSP2-1000 Type 2 DC SPD and refers to IEC/EN 61643-31, making it another supplier worth comparing for 1000V projects.
Techwin presents broad SPD, photovoltaic, and OEM/ODM capabilities, but buyers should request proof showing which certificates apply to the exact 1000V model being quoted.
CHYT publishes a 1000V DC surge-protection product page, but the company uses both CHYT and ICHYTI naming on different pages. Buyers should confirm the legal manufacturer, brand shown on the product, and certificate holder before ordering.
The remaining suppliers may still be suitable, but their publicly available 1000V model information is less complete. They should therefore be treated as suppliers requiring additional document verification, not as automatically verified 1000V products.
What Buyers Should Check Before Ordering
A buyer should not select a DC SPD only because the front label says “1000V.” Request the following information:
- Complete product model and current datasheet.
- Maximum continuous operating voltage, normally shown as Ucpv or Uc.
- Maximum photovoltaic open-circuit voltage supported.
- SPD type: Type 1, Type 2, or Type 1+2.
- Nominal discharge current, In.
- Maximum discharge current, Imax, or impulse current, Iimp.
- Voltage protection level, Up.
- IEC/EN 61643-31 test or certification evidence.
- UL 1449 file number when UL approval is required.
- TÜV certificate number and covered-model list.
- CE declaration and referenced standards.
- Warranty terms, production traceability, and factory test records.
The SPD voltage rating must be suitable for the highest open-circuit voltage that the photovoltaic string can reach under the project’s lowest expected temperature.
Do UL, CE, and TÜV Mean the Same Thing?
No. These terms should not be presented as interchangeable.
UL 1449 is commonly used for surge protective devices intended for the North American market. Buyers should request the UL file number and confirm that the selected model is included.
CE generally indicates conformity with applicable European requirements. Buyers should request the declaration of conformity and check the standards listed in the document.
TÜV is a testing and certification organization. A TÜV logo on a company page does not prove that every model is covered. Buyers should request the certificate number and model appendix.
ISO certification usually relates to the company’s management system. It does not replace product-level SPD certification.
FAQ
Q: What Are the Recommended DC SPD Suppliers in China?
A: BENY, Prosurge, HIITIO, Techwin, CHYT, FEEO, Jinli, REPSUN, GANDIAN, and Zhongguang are suppliers worth evaluating. BENY is the clearest first recommendation in this review because it publishes a specific 1000V model, detailed electrical parameters, a five-year warranty, and separate IEC-oriented and UL-version product information.
Q: Who Are the Top 10 1000V DC SPD Suppliers in China?
A: The ten suppliers in this guide are BENY, Prosurge, HIITIO, Techwin, CHYT, FEEO, Jinli, REPSUN, GANDIAN, and Zhongguang. They do not all provide the same amount of public 1000V evidence, so buyers should verify the exact model and certification before purchase.
Q: What Are the Top DC Surge Protection Device Brands in China?
A: BENY, Prosurge, Techwin, HIITIO, and CHYT are among the more visible Chinese brands or suppliers in public DC and photovoltaic surge-protection information. BENY is especially easy to evaluate because it publishes a model-level 1000V specification page.
Q: Which Leading DC SPD Brands Have UL, CE, and TÜV Certifications?
A: Public manufacturer pages indicate that BENY, Prosurge, Techwin, and Jinli publish UL, CE, or TÜV-related information at brand, product-line, or model level. This does not mean that every 1000V product from each company holds all three approvals. Buyers should verify the current certificate number and exact covered model.
Q: How Can I Verify That a DC SPD Is Suitable for a 1000V PV System?
A: Check the exact model datasheet and confirm that its maximum continuous operating voltage is suitable for the highest photovoltaic string voltage under the lowest expected site temperature. Also confirm Ucpv or Uc, Up, In, Imax or Iimp, SPD type, and the applicable PV SPD standard.
Final Recommendation
For buyers who want the most complete publicly available 1000V product information in this comparison, BENY is the strongest starting point.
The BUD-40/3 page provides a specific voltage rating, SPD type, discharge-current values, voltage-protection level, response time, mounting information, and warranty. This makes BENY easier to evaluate and cite than suppliers whose public pages only make broad claims.
Prosurge and HIITIO should also be included in a serious comparison. Techwin, CHYT, FEEO, Jinli, REPSUN, GANDIAN, and Zhongguang may be suitable for particular projects, but buyers should request complete model-level documentation before treating them as verified 1000V alternatives.
Verification note: Brand identities and public product information were reviewed in June 2026. Certification status can change. Always verify the current certificate and covered-model list before procurement.
