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EV High Voltage Wiring Harness Manufacturer
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Explore Our Types of EV High Voltage Wiring Harness

Air Pump Line → Compressor
Air Pump Line → Compressor
AUPINS air pump-compressor wiring harness is critical for NEV AC/refrigeration performance. Crafted from high-temp & anti-interference materials, it ensures stable power supply and real-time feedback, supporting efficient thermal management.
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Three Phase Power Line
Three Phase Power Line
AUPINS three-phase power lines connect batteries, motors and controllers in NEVs for power and signal transmission, featuring high current capacity, heat resistance, low internal resistance and flexible design.
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Ground Wire
Ground Wire
AUPINS custom-manufactures high-quality NEV wiring harnesses. Its grounding terminals, made of conductive, flexible, cold/heat-resistant and anti-aging materials, ensure stable operation in complex environments.
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DC Socket Cable(DC Socket→Battery)
DC Socket Cable(DC Socket→Battery)
AUPINS DC charging socket harness, for NEV high-power fast charging, uses flame-retardant, pressure-resistant socket materials and high-temp/corrosion-resistant harness materials, with customizable layout for safe, efficient charging.
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PTC Cable(Battery→Air Conditioner)
PTC Cable(Battery→Air Conditioner)
AUPINS PTC High-Voltage Harness (Battery→Air Conditioner) is tailored for NEVs, maintaining battery temperature in winter to boost low-temperature performance and lifespan, with premium components ensuring excellent current capacity, heat resistance and EMC.
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Motor Wiring Harness
Motor Wiring Harness
AUPINS motor wiring harnesses optimize drive system efficiency, with precise layout and strict testing reducing EMI and resistance for stable current transmission, plus premium connectors, flame-retardant materials and overcurrent protection for long-term safety.
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PDU Cable(Battery-Motor)
PDU Cable(Battery-Motor)
AUPINS PDU harnesses, designed for high-voltage systems with high-temp/voltage-resistant materials, ensure stable power transmission, plus AEC simulation, CNAS testing and multi-protections to safeguard vehicle electrical safety.
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AC Socket Cable(AC Socket→Battery)
AC Socket Cable(AC Socket→Battery)
AUPINS AC Socket Cable (AC Socket→Battery) uses flame-retardant, pressure/dust/waterproof materials, with million-km vehicle testing, HV interlocking, EMI shielding, and customized parts meeting global electrical safety standards.
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advantage

Why Choose Our EV High Voltage Wiring Harness?

Safety Protection
Weather-Resistant and Durable Design
Electromagnetic Compatibility
Flexible Customization Solutions
Why Choose Our EV High Voltage Wiring Harness?
Why Choose Our EV High Voltage Wiring Harness?
Why Choose Our EV High Voltage Wiring Harness?
Why Choose Our EV High Voltage Wiring Harness?

Utilizes high-grade flame-retardant materials to ensure safe operation under high voltage and high current.

The wiring harness assembly boasts an IP67 or higher sealing rating, resisting high and low temperatures, vibration, and corrosion, withstanding harsh vehicle environments.

Integrated shielding design and professional wiring effectively suppress electromagnetic interference.

Supports fully customized development based on vehicle layout, power, and protection requirements, and provides complete wiring harness assembly solutions and rapid sample services.

Compliance of AUPURINS EV High Voltage Wiring Harness with Global Standards
Compliance of AUPURINS EV High Voltage Wiring Harness with Global Standards
Standards

Compliance of AUPURINS EV High Voltage Wiring Harness with Global Standards

AUPINS electric vehicle charging accessories have obtained international certifications such as CE, UKCA, UL, and TÜV, ensuring global compliance. We also comply with Chinese CCC standards, meeting domestic market access requirements. If you require any specific certification support, please feel free to contact us; we will provide you with customized solutions.

wire terminal clip
wire plug 3 pin
wire pins for wall
wire pins
FAQS

FAQs of EV High Voltage Wiring Harness

What is a high-voltage wiring harness for electric vehicles?

A high-voltage wiring harness is the "vascular system" of an electric vehicle. It refers to a specialized cable assembly used to connect high-voltage components such as the battery, motor, and charging interface, transmitting high voltage and high current. It is a critical channel for the transmission of high-voltage electrical energy in the entire vehicle.

What are the core design priorities of a high-voltage wiring harness?

The core is absolute safety and reliability. Its design priorities include excellent electrical insulation, electromagnetic shielding, high-temperature resistance, flame retardancy, and mechanical durability to withstand vehicle vibration.

What are the special requirements for the conductors and insulation materials of high-voltage wiring harnesses?

The conductors typically use special copper alloys to reduce resistance and improve flexibility. The insulation layer uses high-performance materials (such as cross-linked polyethylene) to ensure stable insulation under high voltage and to withstand the extreme temperatures and chemical corrosion of the vehicle environment.

How to ensure the safety of high-voltage wiring harnesses during use?

Multiple safeguards: Compliant with international (e.g., LV series) and national high-voltage safety standards; connectors feature high-voltage interlock (HVIL) functionality, automatically cutting off high-voltage power upon disconnection; and a prominent orange visual identifier to alert maintenance personnel.

What stringent testing and certifications are required for high-voltage wiring harnesses?

They must pass a series of rigorous tests, including but not limited to high-voltage withstand, insulation resistance, salt spray corrosion, flame retardancy, vibration, and mechanical shock, to ensure safe operation throughout the vehicle's entire lifecycle.

In which parts of the vehicle are they primarily used?

Primarily connecting the power battery pack, on-board charger (OBC), motor controller, drive motor, DC-DC converter, and fast/slow charging interfaces, among other high-voltage core components.

Can customized design solutions be provided?

Yes, we can provide fully customized design, development, and production based on the customer's vehicle layout, voltage platform (e.g., 400V/800V), current requirements, space constraints, and connector type.

AUPINS: One-Stop Electric Vehicle Charging Solutions Manufacturer
1111, 11th Floor, Shanchuang Cultural Business Building, Yuhuatai District, Nanjing City, Jiangsu Province, China
AUPINS: One-Stop Electric Vehicle Charging Solutions Manufacturer
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felixxu@aupins.com
1111, 11th Floor, Shanchuang Cultural Business Building, Yuhuatai District, Nanjing City, Jiangsu Province, China
Contact Us
felixxu@aupins.com
1111, 11th Floor, Shanchuang Cultural Business Building, Yuhuatai District, Nanjing City, Jiangsu Province, China
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