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NRZ28
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Low Voltage IEC Sub Power Distribution NRZ28
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NRZ28
NRZ28

NRZ28

The NRZ28-20 Solar Photovoltaic System Protection Fuse is engineered for DC solar PV applications up to 1000V, providing reliable protection against short circuits and overloads. Compact and efficient, it supports rated currents up to 20A and a breaking capacity of 20–35kA. Designed with DMC-2 and H62 conductive materials, it ensures low power loss and high durability. The gPV fuse link design guarantees full-range DC protection, meeting IEC 60269-6 and GB/T 13539.6 standards, making it ideal for solar array, combiner box, and inverter protection.

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Product Information

Name
Size
Release time
Operate
NRZ28-Fuse-Catalog.pdf
481.19KB
2024-10-23
Download
Name
Size
Release time
Operate
NRZ28-20,20X_TUV-Certificate.pdf
809.47KB
2025-02-18
Download
NRZ28-20_CE-Certificate.pdf
316.7KB
2025-02-18
Download
NRZ28-20_TUV-Certificate.pdf
854.53KB
2025-02-18
Download
NRZ28_CB-Certificate.pdf
305.62KB
2025-02-18
Download

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FAQs

 

What is the primary application of the NRZ28-20 fuse?

It’s specifically designed for solar photovoltaic (PV) systems, protecting DC combiner boxes, string circuits, and inverters against short circuits and overloads up to 1000V DC.

 

Why is the NRZ28-20 classified as a “gPV” fuse?

“gPV” refers to its full-range DC breaking capacity, meaning it can safely interrupt all fault currents—from minor overloads to severe short circuits—making it ideal for PV arrays and DC protection circuits.

 

Can this fuse operate in high-altitude or outdoor solar installations?

Yes. It maintains stable performance up to 2000m altitude, and can be derated for higher elevations (e.g., 0.9×In at 2500m). The sealed design and high insulation materials make it suitable for both indoor and outdoor PV installations.

 

How does ambient temperature affect fuse performance?

At ambient temperatures above 40°C, the rated current must be corrected. For instance, at 60°C, the current should be reduced by 22% to ensure proper operation.

 

How should this fuse be installed?

It can be mounted on a TH35 DIN rail or fixed with screws, depending on cabinet design. Proper ventilation is recommended, and it should be placed in environments free of vibration or condensation.

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