DC 1500V Solar Inline Fuse Connector Harness (Cable Jumper with Fuse)

The NSPV Cable Jumper with Fuse is widely used in:

Solar PV modules
PV string protection
Combiner boxes
DC cable extension
Solar inverter connections
Utility-scale PV plants
Commercial rooftop systems
Residential solar installations
Energy storage systems (ESS)
Floating PV projects

Inquiry

Write a Review

Product Introduction

Save Installation Time. Protect Every PV String. Built for 1500V Solar Systems.

Modern photovoltaic (PV) systems require more than reliable electrical connections—they demand fast installation, effective overcurrent protection, and long-term outdoor durability.

The NSPV 1500V PV Inline Fuse Harness, also known as a Cable Jumper with Fuse Connector, is an integrated pre-assembled cable solution that combines a PV extension cable with a DC inline fuse connector. It enables installers to complete both cable connection and string protection in one step, significantly reducing field wiring time while ensuring complete fuse disconnection during overload or short-circuit conditions.

Designed for residential, commercial, utility-scale solar farms, and energy storage systems (ESS), this solution complies with international photovoltaic standards and is available with TÜV and ETL certifications, ensuring reliable performance in global solar projects.

Product Specifications

Product Type	TPV Inline Fuse Harness / Cable Jumper with Fuse
Rated Voltage	1500V DC
Rated Current	50A (without fuse)
Fuse Rating	1A–30A (10×85mm Fuse) 25A–50A (14×85mm Fuse)
Cable Size	2.5mm² – 10mm²
Test Voltage	8kV (50Hz, 1 minute)
Contact Resistance	<0.25mΩ
Conductor Material	Tin-plated Copper
Insulation Material	PPE / TPE / PA
Protection Rating	IP68
Flame Rating	UL94 V-0
Pollution Degree	CAT III / 2
Operating Temperature	-40°C to +85°C
Maximum Conductor Temperature	110°C (IEC)
Safety Class	Class II
Certifications	TÜV, ETL

Why Choose NSPV PV Inline Fuse Harness?

Faster Installation, Lower Labor Cost

Traditional installations require separate extension cables, fuse connectors, and additional assembly on-site.

The NSPV Cable Jumper with Fuse is factory-assembled and tested before delivery, allowing installers to simply plug and play.

Benefits include:

Pre-assembled factory wiring
No field crimping required
Reduced installation time
Lower labor costs
Fewer installation mistakes
Consistent connection quality

For EPC contractors and solar installers managing hundreds or thousands of PV strings, these time savings translate directly into lower project costs.

Complete Overcurrent Protection

Every photovoltaic string should be protected against overload and reverse current.

When excessive current or a short circuit occurs, the integrated fuse rapidly melts and completely disconnects the faulty DC circuit, preventing damage to:

When excessive current or a short circuit occurs, the integrated fuse rapidly melts and completely disconnects the faulty DC circuit, preventing damage to:

Solar modules
PV cables
Combiner boxes
DC isolator switches
Inverters
Battery Energy Storage Systems (BESS)

Fast fuse operation helps minimize equipment damage while improving overall system safety.

Typical Installation Configuration

In most photovoltaic systems, the inline fuse connector is installed only on the positive (+) conductor, while the negative (-) conductor uses a standard cable jumper without a fuse.

This configuration is widely adopted because it:

Meets PV string overcurrent protection requirements
Reduces component costs
Simplifies system design
Maintains high installation efficiency

The result is an optimized balance between electrical protection and project cost.

Designed for Modern 1500V Solar Systems

The NSPV Inline Fuse Harness is suitable for:

Utility-scale solar power plants
Commercial rooftop PV
Residential solar installations
Floating solar systems
Agrivoltaic projects
Battery Energy Storage Systems (ESS)
PV combiner boxes
String inverter systems
Central inverter systems

Compatible with industry-standard PV connectors, it provides reliable operation under harsh outdoor environments.

Product Features

Factory pre-assembled solution

✔ Rated up to 1500V DC

✔ Complete fuse isolation during overload

✔ IP68 waterproof protection

✔ UV resistant housing

✔ Excellent weather resistance

✔ Low contact resistance

✔ Tin-plated copper conductor

✔ Flame-retardant UL94 V-0 housing

✔ Long service life in outdoor environments

✔ Plug-and-play installation

✔ Compatible with mainstream MC-compatible PV connector systems

Applications

The NSPV Cable Jumper with Fuse is widely used in:

Solar PV modules
PV string protection
Combiner boxes
DC cable extension
Solar inverter connections
Utility-scale PV plants
Commercial rooftop systems
Residential solar installations
Energy storage systems (ESS)
Floating PV projects

Advantages for EPC Contractors and Installers

Compared with assembling cables and fuse connectors separately, the NSPV factory-assembled solution offers:

Faster project completion
Consistent factory-tested quality
Reduced installation errors
Improved system reliability
Lower inventory complexity
Reduced labor costs
Professional appearance
Simplified maintenance

Certifications

The NSPV PV Inline Fuse Harness is manufactured under strict quality control and is available with:

TÜV Certified
ETL Certified
IP68 Waterproof
IEC compliant manufacturing process

Every harness is tested before shipment to ensure stable electrical performance and long-term outdoor reliability.

FAQ

Why is the fuse usually installed only on the positive cable?

A: TIn most photovoltaic string designs, the positive conductor is protected by the inline fuse while the negative conductor uses a standard cable jumper. This industry-standard configuration provides effective overcurrent protection while reducing overall system cost.

What happens if the PV string experiences an overload or short circuit?

A: YWhen the current exceeds the fuse rating, the fuse element melts rapidly, completely disconnecting the affected string from the DC circuit. This protects downstream equipment and helps prevent cable overheating or equipment damage.

Is the cable jumper suitable for outdoor installation?

A: Yes. The harness features IP68 waterproof protection, UV-resistant materials, flame-retardant housing, and operates reliably from -40°C to +85°C, making it ideal for long-term outdoor photovoltaic applications.

Can different cable lengths and fuse ratings be customized?

A: Absolutely. NSPV provides OEM and ODM customization, including: Cable length Cable size (2.5–10mm²) Fuse rating Connector type Packaging Logo branding Label printing

Which photovoltaic systems is this product compatible with?

A: The NSPV Inline Fuse Harness is suitable for virtually all 1500V DC photovoltaic systems, including residential, commercial, utility-scale solar projects, floating PV, agrivoltaic installations, and battery energy storage systems (ESS). It is compatible with industry-standard MC-compatible PV connector interfaces.

Download

Feel free to contact us with any questions you have.

Take a look around our website. If you have a query or you need advice, just contact us. We'll take time to help you. For more information, please reach our team, we are more than happy to help.