Custom High-Voltage Cable Assemblies Solution

Our Global Wire Harness Clients
High-voltage wiring harnesses are widely used across various industries, ensuring safe and efficient power and signal transmission. Wires offers high-voltage wiring harnesses for both DC and AC charging, supporting customized and standard solutions to meet different application needs.
High-Voltage Cables Assemblies Applications



Why Choose WIRES?
Unparalleled Manufacturing Capability
At Wires, you can access a full range of services, including:
- Design: Customized engineering based on application requirements
- Prototyping: Rapid development for design validation
- Assembly: Precision manufacturing of cable assemblies
- Testing: Electrical, mechanical, and safety performance verification
- Value-added services: Including visual inspection, quality checks, and fast quotation response
Wires first thoroughly analyzes the application conditions and design constraints of high-voltage wiring harnesses. During the prototype development stage, we work closely with you and provide multiple design options to ensure the final solution meets your performance, safety, and installation requirements.
We offer a wide range of customization options to meet high-voltage wiring harness requirements:
- Cables: In addition to custom specifications and lengths, we provide multiple shielding solutions, including copper braided shielding, foil shielding, and combined shielding structures. We also support multi-layer extruded cables with integrated shielding for enhanced protection.
- Connectors: A variety of connector styles and sizes are available, selected based on operating voltage, current requirements, and system compatibility.
- Accessories: We supply complete installation components for high-voltage harness systems, including strain reliefs, cable ties, clips, and cable clamps, ensuring secure installation and efficient cable management.
At Wires, we ensure the reliability and safety of our wire harnesses through strict quality control and testing procedures, in compliance with ISO 6722-1 standards:
- Abrasion testing
- Voltage resistance testing
- High-temperature resistance testing
- Dynamic bending fatigue testing
- Diameter measurement inspection
- Thermal aging testing
- Tensile strength testing
- Flame retardancy testing
These tests ensure consistent electrical performance, mechanical durability, and safety compliance for high-voltage applications.
We support both small-batch prototypes and large-volume production orders, with efficient manufacturing capacity that ensures consistent quality and reliable delivery for every order size.


WIRES High-voltage Cables Products
Battery Connection Cable Assembly
Industrial Equipment High-Voltage Cable Assemblies
Photovoltaic Cable Assembly
Looking for a Reliable Custom Wire Harness & Cable Assembly Partner?
Guaranteed Quality & Safety
Compliant with IPC/WHMA-A-620 standards, ensuring reliable performance in every wire harness and cable assembly.
Customer Reviews of WIRES
Frequently Asked Questions
WIRES primarily uses high-quality copper and aluminum conductors, high-performance connectors, and premium insulation materials to ensure stable electrical performance and durability.
For shielding applications, we offer multiple options, including copper braided shielding, aluminum foil shielding, and nylon braided mesh, to meet different levels of protection and environmental requirements.
Reliable engineering design and the use of high-quality materials (copper/aluminum conductors, high-grade insulation, and IP-rated sealing components) form the foundation of product safety.
At WIRES, advanced manufacturing processes and strict quality control systems ensure consistency across production, including 100% continuity testing, high-voltage withstand testing (up to industry-standard levels), and insulation resistance verification.
Combined with comprehensive validation procedures, WIRES has successfully delivered over 1,000,000+ high-voltage wiring harnesses, ensuring proven reliability in automotive, energy, and industrial applications.
The typical lead time at WIRES is 4–8 weeks, depending on order quantity, product complexity, and customization requirements.
For standard configurations, production can be completed closer to the lower end of the range, while highly customized or large-volume orders may require additional time. With strong manufacturing capacity and supply chain coordination, WIRES is committed to ensuring on-time delivery within the confirmed schedule window.










