Wire Harness Assembly Solar Cable Harness Wholesale - NSPV

Product details of the wire harness assembly

Quick Overview

The entire production process of NSPV wire harness assembly is strictly executed by our professionals. The quality of the product is secured by an efficient production test team. In fact, the product performs well than others in the industry.

Product Information

NEWSUN not only pays attention to the whole, but also focuses on the details of wire harness assembly. In this way, we make sure that our products are better reflected in the following details.

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.

NSPV 1500V PV Inline Fuse Connector 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 providing overcurrent protection through a correctly selected PV fuse.

Designed for residential, commercial, utility-scale solar farms, and energy storage systems (ESS), This solution is designed for 1500V DC photovoltaic applications, subject to the applicable component ratings and system requirements. and is available with TÜV and ETL certifications, ensuring reliable performance in global solar projects.

Product Specifications

Product Type	PV Inline Fuse Connector Harness / Cable Jumper with Fuse
Rated Voltage	1500V DC
Connector rated current	Up to 50 A, subject to the applicable connector configuration and cable size.
Fuse Rating	1A–30A (10×85mm Fuse) or 25A–50A (14×85mm Fuse)Selected according to the fuse configuration and system design.
Cable Size	2.5mm² – 16mm²
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.

The integrated PV fuse is designed to interrupt excessive current within its specified operating characteristics, helping protect the affected circuit against overcurrent-related damage. Correct fuse selection must consider system voltage, expected fault current, cable ampacity, module specifications, and applicable installation requirements.

Typical Installation Configuration

The inline fuse is installed in the conductor or conductors specified by the PV system design. Fuse placement and ratings must be selected according to the system grounding arrangement, module specifications, expected reverse current, and applicable electrical codes. A standard cable jumper without a fuse may be used on the other conductor where permitted by the design and applicable requirements.

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 is designed for outdoor PV applications under the specified environmental conditions.

Product Features

Factory pre-assembled solution

✔ Rated up to 1500V DC

✔ Integrated PV fuse for overcurrent protection

✔ 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

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: In some photovoltaic string designs, the positive conductor is protected by the inline fuse while the negative conductor uses a standard cable jumper. This Optional configuration provides effective overcurrent protection while reducing overall system cost.

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

A: When an overcurrent causes the fuse to operate according to its time-current characteristics, the fuse interrupts current in the affected circuit. Its protective performance depends on correct fuse selection and the applicable operating conditions.

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: Yes. NSPV offers OEM and ODM customization options, subject to product configuration, including cable length, cable size, fuse rating, connector type, packaging, logo branding, and label printing.

Which photovoltaic systems is this product compatible with?

A: The NSPV Inline Fuse Connector Harness is designed for compatible 1500V DC photovoltaic applications. Suitability depends on the system voltage, connector configuration, cable size, fuse rating, and project requirements.

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Company Information

NEWSUN PV TECHNOLOGY CO., LTD is domestically competitive in manufacturing and exporting wire harness assembly. So far, we have established solid cooperation relationships with overseas customers. In recent years, the average annual export amount to these customers exceeds very high. We plan to adopt green production. We try to produce products in a way that features less waste and emission. This will help us contribute to reducing the negative impact on the environment.
If you are interested in our products, please feel free to contact us.

we welcome custom designs and ideas and is able to cater to the specific requirements. for more information, please visit the website or contact us directly with questions or inquiries.