Cloom Tech manufactures EV wire harness solutions built to support the electrical power, data transmission and safety requirements of modern electric vehicles.
Our EV wire harness and EV wiring harness assemblies are produced strictly to customer drawings, supporting high-voltage and low-voltage circuits across the vehicle’s entire electrical system.
An EV wire harness is an organized wiring system that distributes electrical power, signals and data across an electric vehicle’s electrical system. Unlike harnesses used in internal combustion engine (ICE) vehicles, electric vehicle wiring harness assemblies must handle high voltage, high-current loads and increased electrical complexity across vehicle systems.
In EVs, wiring harnesses connect the battery pack, inverter, power electronics, electronic control units, sensors and charging interfaces. These wiring harnesses are designed to support safe power transmission, reliable data transmission and protection against electromagnetic interference.
EV wire harness assemblies connect the battery pack and battery management systems, supporting high-current power transmission, real-time monitoring and electrical safety across high-voltage systems.
Electric vehicle wiring harnesses route electrical power between the inverter, motor and power electronics. These harnesses must handle high voltage, high-current loads and continuous power distribution within the powertrain.
Wire harness assemblies connect electronic control units, sensors and vehicle systems that manage automation, ADAS and autonomous driving functions, enabling reliable data transmission and system coordination.
EV wiring harnesses support charging connections and internal power distribution, ensuring safe electrical performance and plug-and-play integration within the vehicle’s electrical system.
Additional wire harness solutions support cooling systems, safety controls and auxiliary electrical components, helping prevent failures and maintain performance under varied environmental conditions.
EV wire harnesses must handle high voltage and high-current loads safely. High-voltage wiring harnesses use dedicated insulation, separation and routing to manage electrical power and reduce electrical hazards.
Robust insulation and shield layers protect against electromagnetic interference and EMI, supporting stable electrical performance and reliable data transmission across vehicle systems.
Modular EV wiring harness configurations support compact routing within the vehicle’s structure, improving integration with modular systems and helping manage complexity across the entire electrical system.
Harnesses must operate under varied environmental conditions. Material selection, conduit protection and robust design improve durability, robustness and long-term reliability.
EV wiring harnesses integrate power transmission with sensor and signal paths, enabling real-time monitoring and coordination of power electronics.
EV wiring harnesses are designed to meet the demands of modern automotive applications, prioritizing performance and reliability to help prevent failures.
Cloom Tech provides EV wire harness manufacturing focused on accuracy, safety and repeatability. All wire harness assemblies are produced strictly to customer drawings and specifications, supporting prototype builds through scalable production.
We utilize automated cutting, stripping and crimping for both high- and low-voltage wires. This ensures micron-level precision and consistency across every connection, which is critical for the long-term reliability of complex EV systems.
Following IPC/WHMA-A-620 standards, our certified technicians expertly integrate specified connector systems (e.g., from Molex, Amphenol, Yazaki and more). Every termination is verified to ensure secure mechanical and electrical integrity, preventing failures in high-vibration environments.
We don’t just assemble; we protect. Based on your specifications, our team integrates specialized insulation, shielding and conduit materials to manage EMI, resist extreme temperatures, and protect against chemical exposure, ensuring harness performance in any part of the vehicle.
Our processes support high-voltage wiring harnesses designed to handle high currents and electrical power safely. Controlled routing and separation reduce electrical hazards and support safe power transmission across EV platforms.
Our quality system is certified to the IATF 16949 automotive standard. Every EV harness undergoes a multi-point validation process, including 100% continuity testing, insulation resistance checks, and visual inspection, with full traceability for every component.
We support your entire product lifecycle. Our flexible manufacturing lines can quickly produce prototypes for validation and seamlessly scale to high-volume production, ensuring consistent quality as your EV program grows.
We leverage our established relationships with premier global suppliers like Molex, Amphenol, and Yazaki to secure authentic components, ensure stable lead times, and control costs for your project.
We are more than a supplier; we are your partner from start to finish. We support your project's entire journey, from initial prototype validation to full-scale volume production, ensuring a seamless and supportive experience as you grow.
With facilities in China and the Philippines, we offer a stable, flexible and resilient supply chain. This global footprint provides dependable capacity and mitigates regional risks for your global EV programs.
EV wire harness assemblies require different materials, routing and manufacturing controls from regular automotive wire harnesses to meet the demands of modern automotive platforms.
| Feature | EV Wire Harnesses | Regular Automotive Wire Harnesses |
|---|---|---|
| Power Levels | Built for high-voltage systems and high-current loads | Designed for lower voltage electrical power |
| Primary Systems | Battery pack, inverter, power electronics, powertrain | Systems centered on the internal combustion engine |
| Electrical Safety | Enhanced insulation, separation, and protection against electrical hazards | Standard insulation for conventional loads |
| EMI Control | Shielding to manage electromagnetic interference in dense electronics | Limited EMI requirements |
| Complexity | Supports automation, ADAS and autonomous driving with dense routing | Lower complexity and fewer electronic control units |
| Architecture | Often modular to support evolving EV platforms | Typically fixed, less modular |
Hear from some of our happy customers:
We sincerely appreciate the professionalism you’ve demonstrated. Your effort to thoroughly understand the project lays a solid foundation for a successful collaboration.
We are excited about the possibility of working together on future projects and are confident that this collaboration will continue to thrive. Thank you for your hard work and dedication!
Thank you for sharing such thoughtful and detailed questions. Your meticulous approach and depth of inquiry reflect your genuine commitment to achieving a high-quality outcome.
By asking the right questions and paying close attention to every detail, you’ve demonstrated a level of professionalism and care that sets you apart. We look forward to continuing this collaboration and are confident in the quality of results you will bring.
Everything arrived in perfect condition, surpassing our expectations in both quality and service. Cloom Tech’s dedication to excellence made this project a great success.
Your professionalism and hard work were outstanding, and we’re excited to partner with you again on future projects with complete confidence and trust.
Thank you for delivering our custom wiring harnesses on time and meeting all our quality expectations. The shipment was prompt, and every item passed inspection perfectly.
Your dedication to detail and excellence truly sets you apart as a trusted partner. We’re excited to continue working together on future projects!
I received the shipment of cable assembly and wanted to take a moment to thank you and your amazing team.
The quality of the work is fantastic, and I’m genuinely impressed. Well done to everyone involved! Your dedication and attention to detail are truly appreciated. I look forward to continuing our collaboration.
FAQs
Yes. Our EV wire harness assemblies support advanced vehicle systems including electronic control units, sensors, ADAS, automation and autonomous driving.
Key factors include available space, bend radius, thermal exposure, and HV/LV circuit separation. Our engineering team reviews these aspects during the DFM process to ensure optimal routing in compact designs.
Each order includes inspection records, test results and batch-level material traceability. Labeling and documentation support quality audits, compliance reviews and repeat production for EV programs.
Partner with an automotive wire harness expert. Cloom Tech builds EV harnesses to your exact specifications, engineered for the demands of high-voltage systems and scalable production.
