# Siemens 3NW6003-4 Cylindrical Safety Fuse 10x38mm 1000V 10A GPV

**URL:** https://aio.lv/en/product--siemens-3nw6003-4--12469084
**Data updated:** 2026-05-18 09:43 (EEST)
**Category:** Solar Panel Accessories
**Manufacturer:** Siemens
**Manufacturer code:** 3NW6003-4
**EAN:** 4001869415925
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Siemens 3NW6003-4 is a high-voltage cylindrical safety fuse designed for reliable circuit protection. Measuring 10x38mm, this GPV-rated fuse operates at 1000V with a 10A current rating. It is engineered for industrial applications requiring precise overcurrent protection in photovoltaic systems. This package contains 1 unit, ensuring high performance and safety for your electrical infrastructure.

## Long description

The Siemens 3NW6003-4 is a high-performance cylindrical safety fuse specifically engineered to provide reliable circuit protection in demanding electrical environments. With a compact 10x38mm form factor, this component is designed to handle high-voltage requirements, offering a rated voltage of 1000V and a current rating of 10A. It serves as a critical safety element in photovoltaic systems, ensuring that electrical infrastructure remains protected against overcurrent conditions.
Advantages
This fuse offers exceptional reliability and precision, which are essential for maintaining the integrity of sensitive electrical equipment. Its robust construction ensures consistent performance under varying operational conditions, making it a dependable choice for industrial applications. The GPV rating signifies that it is specifically optimized for the unique demands of solar power installations, providing peace of mind through effective fault current interruption.
Suitable for
Photovoltaic solar power systems
Industrial electrical circuit protection
High-voltage DC distribution panels
Overcurrent protection for solar strings
When it may not be suitable
This fuse is not intended for use in low-voltage residential AC circuits or applications where the current exceeds the 10A rating. It is specifically designed for GPV (photovoltaic) applications and may not provide the correct protection characteristics for general-purpose household appliances or automotive electrical systems.
Key specifications
Dimensions: 10x38mm
Rated voltage: 1000V DC
Rated current: 10A
Application category: GPV (Photovoltaic)
Quantity: 1 unit per package
How to use
The fuse should be installed into a compatible 10x38mm fuse holder designed for high-voltage DC applications. Ensure that the power supply is completely disconnected before insertion to prevent electrical shock. Align the fuse with the holder contacts and press firmly until it is securely seated. Regular inspection of the fuse holder and the fuse itself is recommended to ensure there is no corrosion or physical damage that could impede performance.
What to consider before purchase
Verify that the 10A current rating matches your system requirements.
Ensure your fuse holder is rated for 1000V DC operation.
Confirm that the application is a photovoltaic system requiring GPV-rated protection.
Check the physical space constraints in your electrical cabinet for the 10x38mm size.
Usage recommendations
Always replace the fuse with an identical model to maintain the safety standards of your electrical system. Never attempt to bypass or repair a blown fuse, as this poses a significant fire and safety risk.

## Specifications

| Feature | Value |
|---|---|
| Package weight | 8 g |
| Product colour | Multicolour |
| Purpose | High voltage |
| Package depth | 53 mm |
| Package height | 75 mm |
| Package width | 34 mm |
| Quantity per pack | 1 pc(s) |

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### What is the warranty period?

All Siemens products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Siemens service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

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