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High-Performance DC Fuses for
Solar，Wind & Energy Storage
Reliable protection for your DC systems up to 1500V
Designed for renewable energy and industrial applications
Explore Our DC Fuse Product Range
From compact 10×38mm fuses to high-current H-class series, our DC protection solutions cover solar, wind, and energy storage applications.
Compliant with Global Safety Standards
10×38mm DC PV Fuses (1000V / 1500V, 1–32A)
Compact fuses designed for PV string protection, ensuring safe operation in solar systems up to 1500V. Compatible with standard fuse holders.
- gPV per IEC 60269-6; UL 2579
- Typical ratings: 6–32 A per string; 1000/1500 V DC
- Holders: DIN-rail, IP20 touch-safe
14×85mm DC Fuses (1500V, 30–50A)
High-voltage protection for medium current PV arrays and energy storage systems. UL/IEC certified, reliable for industrial-scale projects.
- For higher-current PV strings / combiner outputs
- 1500 V DC with elevated interrupt rating
- Mounts: heavy-duty DIN-rail holders, IP20 safety
High Current DC PV Fuse 1000V (H0–H3, 80–500A)
Designed for large-scale solar PV applications, this 1000V high-current fuse offers reliable circuit protection under demanding conditions. Suitable for utility-scale and industrial solar installations.
- H-class (H0–H3) for inverter/DC bus protection
- Typical ranges: 80–400 A; up to 50 kA DC (model-dependent)
- Applications: PV inverters, industrial DC panels, ESS input/output
High Current DC PV Fuse 1500V (H1XL–H3L, 35–630A)
Engineered for central invertersEngineered for next-generation solar systems, this 1500V high-current fuse delivers maximum safety and efficiency for energy storage, wind power, and high-voltage PV installationswind turbines, and large battery cabinets. Provides high breaking capacity with full DC protection.
- For next-gen 1500 V DC arrays, ESS battery racks, wind converters
- High interrupt rating and controlled let-through energy
- Compatible with heavy-duty mounts / busbar hardware
DC Fuse Selection Guide
Use this quick guide to size and select the right DC fuse for high-voltage 1000 V / 1500 V DC systems in solar PV, wind, ESS and industrial DC distribution. It covers 10×38 mm gPV and 14×85 mm fuses for strings and arrays, plus high-current H-class (H0–H3) fuses for inverters, battery racks and DC busbars. Standards reference: IEC 60269-2, IEC 60269-6 (gPV), UL 2579, UL 248-14.
1) Define System Voltage & Topology
Match the fuse voltage rating to (or above) the system: 1000 V / 1500 V DC for PV strings, array combiners, inverters/DC-link, battery racks and DC busbars. Typical formats: 10×38 mm gPV for strings; 14×85 mm or H-class (H0–H3) for higher-current feeders.
Applications of DC Fuses in Renewable Energy
DC Fuse Selection Guide
Use this quick guide to size and select the right DC fuse for high-voltage 1000 V / 1500 V DC systems in solar PV, wind, ESS and industrial DC distribution. It covers 10×38 mm gPV and 14×85 mm fuses for strings and arrays, plus high-current H-class (H0–H3) fuses for inverters, battery racks and DC busbars. Standards reference: IEC 60269-2, IEC 60269-6 (gPV), UL 2579, UL 248-14.
1) Define System Voltage & Topology
Match the fuse voltage rating to (or above) the system: 1000 V / 1500 V DC for PV strings, array combiners, inverters/DC-link, battery racks and DC busbars. Typical formats: 10×38 mm gPV for strings; 14×85 mm or H-class (H0–H3) for higher-current feeders.
2) Determine Operating Current
Size the fuse current rating to 1.25–1.5× the normal operating current. For PV strings: Isc × number of parallel strings. Select nearest fuse rating above.
3) Check Breaking Capacity
Verify fuse can safely interrupt maximum possible DC fault current. PV and ESS systems often require ≥33 kA DC.
4) Time–Current Characteristics
PV fuses are gPV type — full-range protection. They withstand overload but clear fast under short-circuit.
5) Mechanical Format & Mounting
Common footprints: 10×38 mm, 14×85 mm, NH/HRC (H0–H3). Choose holders or in-line fuse bases accordingly.
6) Standards & Compliance
Use fuses certified to IEC 60269-6 (gPV), UL 2579 for PV, and UL 248-14 for DC-rated fuses.
Sizing Examples
- PV String: 12 A Isc, 4 strings → 48 A total → select 63 A / 1000 V DC gPV fuse (14×85 mm).
- Battery Rack: 250 A discharge, 1500 V DC bus → select 315 A NH2 fuse, 1500 V DC, breaking 50 kA.
Quick Reference
| Application | Typical Fuse | Rating | Standard |
|---|---|---|---|
| PV String | 10×38 mm gPV | 8–30 A, 1000/1500 V DC | IEC 60269-6, UL 2579 |
| Array / Combiner | 14×85 mm gPV | 50–63 A, 1000/1500 V DC | IEC 60269-6, UL 2579 |
| Inverter / Battery | NH (H0–H3) | 100–630 A, 1000/1500 V DC | IEC 60269-2, UL 248-14 |
Why Choose Our DC Fuses?
Engineered for renewable and industrial DC systems, our fuses deliver certified protection with reliable long‑term performance.
High Breaking Capacity
Rated up to 50 kA DC fault current, ensuring dependable safety in PV, wind, ESS, and industrial DC circuits.
Wide Voltage Range
Available in 1000 V and 1500 V DC with options to match PV strings (10×38 mm gPV), high‑current feeders (14×85 mm), and inverter/ESS DC bus (H‑class H0–H3).
Long Service Life
Durable under harsh conditions, offering consistent performance and fewer replacements over years of operation.
Certified Compliance
Meets global standards including IEC 60269‑6 (gPV), IEC 60269‑2, UL 2579, UL 248‑14, CE, RoHS, and CSA for safe worldwide use.
Extended DC Fuse Applications
Beyond solar, wind, and ESS, our DC fuses are widely applied in industrial DC circuits, electric vehicle charging stations, telecom backup systems, and railway DC traction networks. Designed for 1000 V and 1500 V DC environments, they deliver high breaking capacity and stable protection where downtime is not an option.
Telecom & Data Centers
Protecting backup battery cabinets, rectifiers, and power distribution modules with low-loss, high-efficiency fuse designs for uninterrupted service.
Rail & Metro DC Traction
Ensuring safe operation of DC traction substations, trains, and light rail applications with fuses tested for high fault currents and heavy-duty use.
EV Fast Charging
Reliable DC fuse protection for EV fast chargers and charging stations, supporting long lifecycle performance under frequent high-load operation.
Industrial DC Networks
From factory DC distribution cabinets to hybrid storage systems, our fuses deliver consistent fault protection for critical infrastructure.
DC Fuse FAQ
Answers to common questions about 1000 V / 1500 V DC fuses for solar PV, wind power, energy-storage (ESS), EV fast-charging, and industrial DC distribution. This page focuses on high-voltage applications.
What DC voltages do your fuses support?
Our portfolio covers 1000 V DC and 1500 V DC systems used in PV strings and arrays, combiner boxes, inverter DC-links, battery racks, DC busbars, wind-turbine converters, and EV DC distribution panels. Typical formats include 10×38 mm gPV (string protection), 14×85 mm gPV (higher-current feeders), and H-class (H0–H3) fuses for inverter/ESS DC bus.
What is the breaking capacity of your DC fuses?
Selected models are tested up to 50 kA DC short-circuit current (model-dependent), ensuring safe interruption in high-fault-level PV, ESS, and industrial DC networks. Always verify the datasheet time–current curves and temperature derating for your installation.
Are your fuses certified for global projects?
Yes. Our PV series comply with IEC 60269-6 (gPV) and UL 2579, and our high-current DC fuses comply with IEC 60269-2 / UL 248-14. We also support CE, RoHS, and CSA. Project-specific certificates and UL file numbers are available on request.
Where are DC fuses used?
Typical uses include solar PV strings/arrays, combiner boxes, and inverter DC-links; wind-turbine converters; ESS battery cabinets and DC busbars; EV fast-charging DC distribution; and industrial DC panels. We support both 1000 V and 1500 V DC architectures.
How do I size a DC fuse for my system?
Choose a fuse voltage rating ≥ system voltage, then select the current rating by applying a 125–150% factor over normal operating current (consider device protection, conductor ampacity, and ambient derating). Match the time–current characteristic (e.g., gPV for PV strings). For high-current feeders or DC bus, use the appropriate 14×85 mm gPV or H-class (H0–H3) fuses per the available short-circuit current.
Do you supply compatible fuse holders and bases?
Yes. We offer DIN-rail PV fuse holders for 10×38 mm and 14×85 mm, as well as NH/HRC (H0–H3) knife-blade bases for busbar mounting and inverter/ESS DC-link protection. Panel and rack-mount accessories are available for 1000 V / 1500 V DC installations.
What are the lead times and minimum order quantities?
Standard items—such as 10×38 mm gPV, 14×85 mm gPV, and common NH/HRC sizes— typically ship within 7–15 business days. MOQs depend on model and packaging. Engineering samples can be arranged for qualification.
Can you provide datasheets and test reports?
Yes. We provide datasheets with time–current curves, temperature derating, dimension drawings, and certification files (CE/UL/IEC). Cross-reference charts and 3D models are available for panel layout and busbar/fuse-base integration.
Ready to Protect Your DC Systems?
Get technical datasheets, certification files, and expert support for 1000 V / 1500 V DC fuses. Our team helps you choose the right solution for solar, wind, ESS, and EV charging.
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