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EYJR-125 AC600V/DC900V Single Core Unshielded Automotive High Voltage Cable

    EYJR-125 AC600V/DC900V Single Core Unshielded Automotive High Voltage Cable

    The Single-core Unshielded Automotive High-voltage Cable is designed for modern electric and hybrid vehicles, delivering safe and efficient power transmission between batteries, inverters, and drive systems. Built with high-conductivity copper or aluminum conductors, it ensures stable electrical performance under high-voltage conditions. The advanced insulation material provides excellent resistance to heat, abrasion, and chemicals, while its flexible single-core structure makes installation easy in compact automotive spaces. Suitable for electric vehicles (EVs), hybrid electric vehicles (HEVs...
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EYJR-125 AC600V/DC900V Single-Core Unshielded Automotive High-Voltage Cable


Applications

Suitable for connecting charging ports to batteries, within batteries, between batteries and engines and other components, and in battery energy storage devices.

As a carrier for power transmission, electric vehicle high-voltage cables have very high performance requirements due to the harsh in-vehicle environment.


Technical Parameters

Reference Standards: ISO 6722-2006 QC/T1037-2016

Rated Voltage: AC600V/DC900V

Rated Temperature: -40°C to +125°C

Conductor: Stranded fine copper wire

Insulation Material: Irradiated XLPO

Insulation Color: RAL2003 Orange or other custom colors

Minimum Bend Radius: Fixed Installation 6 x D (Cable Outer Diameter)

Dielectric Strength Test: 5000V/5min

Spark Test: 8kV

Flame Retardancy: Passes 30s Self-Extinguishing Test

Finished Cable Heat Shrinkage:

Insulation: ≤2mm

Environmental Requirements: RoHS Compliant REACH Compliant

Halogen-free: Meets GB/T19666-2019

Low smoke: Meets IEC61034-2:2019

Special marking: image.png


Product Features

Small cable diameter, saving installation space

Oil-resistant, heat-resistant, low-temperature-resistant, flame-retardant, abrasion-resistant, and possesses excellent mechanical properties


Nominal cross-section

mm²

Conductor structure

(Number of roots/diameter)

Nominal insulation thickness

mm

Wire outer diameter

 max.

mm
20℃ Conductor resistance max
(Q/km)
copper coreTinned copper core
1.5 30/0.250.3 2.4 11.7~12.711.9~13.0
2.5 50/0.250.35 6.99~7.607.19~7.82
56/0.300.4 3.7 4.33~4.714.46~4.85
84/0.300.4 4.3 2.89~3.142.97~3.23
10 320/0.200.6 1.68~1.821.70~1.85
16 510/0.200.65 7.2 1.07~1.161.09~1.18
25 790/0.200.8 8.7 0.688~0.7430.701~0.757
35 1090/0.200.8 10.4 0.489~0.5270.500~0.538
50 1600/0.200.9 12.2 0.343~0.3680.350~0.375
70 2175/0.2014.4 0.243~0.2590.248~0.2647



The Single Core Unshielded Automotive High Voltage Cable is specifically designed for electric vehicles (EVs), hybrid electric vehicles (HEVs), and other advanced automotive systems that require efficient and reliable high-voltage power transmission. Built with precision and manufactured according to international automotive standards, this cable ensures superior electrical conductivity, durability, and safety.



1. Product Structure and Materials

1.1 Conductor

  • Material: High-conductivity copper or aluminum

  • Design: Single-core construction for efficient current flow

  • Advantage: Reduces energy loss and ensures consistent high-voltage transmission

1.2 Insulation

  • Material: High-grade cross-linked polyethylene (XLPE) or equivalent

  • Features:

    • Excellent thermal stability

    • High dielectric strength

    • Resistance to abrasion, oils, and automotive fluids

1.3 Voltage Rating

  • Suitable for high-voltage applications in EVs and HEVs

  • Rated voltage range: 600V to 1500V

1.4 Technical Properties Table

PropertySpecification
Conductor MaterialCopper / Aluminum
StructureSingle-core, Unshielded
Voltage Rating600V – 1500V
Insulation MaterialXLPE or equivalent
Operating Temperature-40°C to +125°C
Standards ComplianceISO, IEC, SAE J standards

2. Core Advantages

2.1 High Electrical Performance

The pure copper or aluminum conductor ensures excellent conductivity and reduced power loss, making it ideal for high-voltage automotive systems.

2.2 Durability

The advanced insulation provides outstanding protection against heat, chemicals, and mechanical stress, ensuring a long service life even in demanding environments.

2.3 Flexibility

The single-core design allows easy routing within compact vehicle architectures, improving installation efficiency.

2.4 Compliance with Standards

Manufactured to meet ISO, IEC, and SAE J automotive standards, ensuring quality, safety, and global compatibility.

2.5 Advantages Summary Table

FeatureBenefit
High ConductivityStable and efficient power delivery
Strong InsulationResistance to heat, oils, and chemicals
Flexible StructureEasy to install in compact spaces
Standard ComplianceMeets global automotive safety requirements

3. Usage Methods

3.1 Typical Applications

  • Battery-to-inverter connections

  • Inverter-to-motor power transmission

  • EV charging system cabling

  • High-voltage distribution in hybrid vehicles

3.2 Safe Usage Guidelines

  • Always follow the vehicle manufacturer’s wiring diagrams

  • Avoid excessive bending or twisting of the cable

  • Keep the cable away from sharp edges or moving parts

  • Ensure secure connections with proper terminals and lugs

3.3 Application Table

Application AreaFunction
Battery to InverterHigh-voltage energy transfer
Inverter to MotorPower transmission for propulsion
Charging SystemReliable energy intake and output
Distribution in HEVsInternal power distribution network

4. Installation Steps

4.1 Preparation

  1. Disconnect the vehicle’s main power supply.

  2. Gather necessary tools (wire cutters, crimping tools, connectors).

  3. Inspect the cable for any visible damage.

4.2 Installation Process

  1. Measure & Cut: Cut the cable to the required length.

  2. Strip Insulation: Carefully strip the insulation without damaging the conductor.

  3. Attach Connectors: Crimp appropriate terminals onto the conductor.

  4. Route the Cable: Place the cable along designated paths within the vehicle.

  5. Secure the Cable: Use clips or ties to fix the cable in place.

  6. Connect & Test: Connect to the respective components and perform a continuity test.

4.3 Safety Precautions

  • Only qualified electricians or automotive technicians should handle installation.

  • Use insulated tools and wear protective equipment.

  • Double-check polarity and connection integrity before re-energizing the system.

4.4 Installation Diagram

[ Battery ] ---- [ High Voltage Cable ] ---- [ Inverter ] ---- [ Motor ]

Illustration: Simplified installation route of the single-core unshielded high-voltage cable in an EV powertrain.


5. After-Sales Support

5.1 Warranty

  • Standard warranty period: 12–24 months

  • Covers manufacturing defects and insulation failures

5.2 Technical Assistance

  • Online support via email, phone, or video call

  • On-site troubleshooting available for bulk customers

  • Installation guidance and training programs

5.3 Replacement Policy

  • Free replacement for defective cables within warranty

  • Fast delivery of spare parts and accessories

5.4 After-Sales Support Table

Service TypeSupport Details
Warranty12–24 months, covers manufacturing defects
Technical SupportOnline and on-site assistance
ReplacementFree replacement within warranty
TrainingInstallation and safety training available

6. Applications

The Single Core Unshielded Automotive High Voltage Cable is widely used in:

  • Electric vehicles (EVs)

  • Hybrid electric vehicles (HEVs)

  • Charging stations and infrastructure

  • Renewable energy storage systems


7. Why Choose Our Cables?

  • Reliable Quality: Manufactured with advanced technology and strict QC

  • Wide Compatibility: Suitable for global automotive applications

  • Excellent Support: Full technical and after-sales service

  • Proven Safety: Meets international standards for high-voltage automotive cables


Conclusion

The Single Core Unshielded Automotive High Voltage Cable is a high-performance, durable, and safe solution for modern electric and hybrid vehicles. With strong after-sales support, proven core advantages, clear usage methods, and professional installation guidelines, it delivers long-lasting performance and reliability. It is the ideal choice for manufacturers, distributors, and service providers in the automotive industry.


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