Custom Renewable Energy Wire Harness & ESS Interconnect Solutions
Certified IATF 16949 & ISO 13485 Manufacturer | Tier 1 Supplier to Global Leaders like CATL
Get A Custom Wiring Harnesses Today!
Our Clients
Wiring Harnesses Assembly Services
From initial concept to precision manufacturing, LEX provides custom-engineered interconnect solutions tailored to your unique specifications. Operating under rigorous IATF 16949 and ISO 13485 standards, our National High-Tech facility ensures uncompromising quality through every stage of our development process.
Technical Consultation & Application Analysis
Deep Application Analysis: Based on experience with industry leaders like CATL, we evaluate flex cycles and signal integrity for robotic environments.
Compliance Alignment: Ensuring all designs meet IATF 16949 and UL/CSA global regulatory requirements.
Custom Engineering & Rapid Prototyping
DFM Support: We optimize cable routing and connector selection using our 5,000㎡ R&D base.
Rapid Prototyping: Delivery of functional samples in 7-10 days, supported by our Texas-based sales team.
Advanced Manufacturing & Precision Assembly
Microscopic Verification: Using terminal cross-section analyzers and CCD magnification to ensure structural integrity.
Full Traceability: A rigorous quality system that tracks every material and process for enterprise-level transparency.
Multi-Stage Testing & Quality Assurance
Microscopic Verification: Using terminal cross-section analyzers and CCD magnification to ensure structural integrity.
Full Traceability: A rigorous quality system that tracks every material and process for enterprise-level transparency.
Global Logistics & Lifecycle Support
Strategic Supply Chain: Leveraging our Xiamen and Zhangzhou factories to optimize lead times and logistics.
Ongoing Partnership: Providing continuous design iterations and technical support to keep your products competitive.
Products
We integrate Molex’s industry-leading connector technology into every custom cable solution.
Multi-Branch Wire Harnesses
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Multi-Branch Wire Harnesses
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Multi-Branch Wire Harnesses
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Multi-Branch Wire Harnesses
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Multi-Branch Wire Harnesses
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Multi-Branch Wire Harnesses
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Connector Options
Selects the right connector based on your performance requirements and environmental conditions.
Mini-Fit Jr.™ Connectors
Supporting a high-current capacity of up to 13A per circuit with a secure TPA locking mechanism. These are the preferred choice for reliable power distribution in vibration-heavy environments, such as automotive systems, industrial machinery, and high-power medical equipment.
KK™ Series Connectors
A cost-effective wire-to-board solution with a standard pitch. Frequently utilized in auxiliary control boards for consumer electronics, household appliances, and diverse industrial control modules.
Micro-Fit 3.0™ Connectors
Featuring a compact 3.0mm pitch to solve space-constraint challenges. Their polarized, foolproof design eliminates the risk of mis-mating in high-density control systems, robotics, and telecommunications infrastructure.
MX150™ Sealed Connectors
Engineered with an IP67 rating to provide a complete seal against moisture ingress and dust contamination. Essential for marine electronics, automotive engine compartments, and outdoor industrial equipment requiring exposure to harsh fluids and weather.
FCT D-sub Connectors
Providing high-durability, interference-resistant connectivity for complex user interfaces, laboratory equipment, and aerospace communication systems.
Nano-Fit™ Connectors
Delivering robust electrical performance in an ultra-compact 2.50mm pitch. These are ideal for Internet of Things (IoT) sensors, wearable technology, and compact electronics where every millimeter of PCB space is critical.
SL™ Modular Connectors
Utilizing advanced shielding and locking technology to maintain superior signal integrity in high-speed data applications. They serve as the backbone for data centers, industrial automation networks, and smart infrastructure.
Industry Applications
Our high-capacity manufacturing base in China utilizes advanced engineering to meet the rigorous demands of the global energy transition. Leveraging our IATF 16949 certified production standards, we provide mission-critical connectivity across these specialized renewable energy sectors:
Energy Storage Systems (ESS)
EV Drive Systems
Charging Infrastructure
Why Choose LEX?
Empowering global industry leaders with custom-engineered connectivity solutions, anchored by uncompromising quality and rigorous international standards.
Dual-Standard Quality Excellence
We operate under both IATF 16949 (Automotive) and ISO 13485 (Medical) certifications. This dual-standard approach applies the most rigorous traceability and zero-defect protocols to every OEM project, ensuring premium quality regardless of your industry.
Professional DFM Engineering Support
Our team provides expert Design for Manufacturing (DFM) reviews to optimize your schematics. We bridge the gap between complex prototypes and efficient mass production, helping you reduce material waste and avoid costly design revisions.
Advanced Precision Automation
With a 5,000㎡ modern facility, we utilize integrated automatic crimping, housing assembly, and ultrasonic welding. These high-precision technologies ensure 100% consistency and superior electrical integrity for high-volume orders.
Texas-Based Technical Support
Experience the ease of local communication. Our dedicated sales and engineering office in Texas, USA, provides real-time technical assistance and rapid design iterations during your business hours, eliminating the challenges of time zones.
High-Mix, Flexible Manufacturing
We excel at managing the entire product lifecycle, from low-volume, high-complexity (HMLV) prototypes to large-scale mass production. Our flexible lines allow you to scale rapidly without sacrificing quality or delivery speed.
Global Compliance & Market Entry
Every assembly is engineered to meet UL, CSA, RoHS, and REACH standards. We handle the complex compliance requirements of the global market, ensuring your products are ready for immediate international distribution.
Quality and Safety, Guaranteed
Our IATF 16949 & ISO 13485 certified, National High-Tech facility builds UL/CSA-recognized and RoHS-compliant interconnect solutions for global industry leaders.
What Our Customers Are Saying
From rapid prototyping to large-scale production, we’ve built lasting partnerships based on manufacturing excellence and transparent communication. Here is what our global partners across diverse industries have to say about their experience working with us.
Frequently Asked Questions
1. How does LEX ensure the reliability of high-voltage wire harnesses for Energy Storage Systems (ESS)?
For large-scale grid-buffer and C&I energy storage, reliability is a mechanical necessity. LEX utilizes IATF 16949:2016 certified processes to engineer harnesses that handle continuous 1000V+ DC loads. Every assembly undergoes rigorous testing in our specialized laboratory, using terminal cross-section analyzers and CCD digital microscopes to verify crimp integrity and thermal stability. Our focus on mission-critical connectivity ensures that your ESS modules maintain maximum uptime and safety under extreme environmental stress.
2. What are the advantages of using LEX’s integrated CCS (Cells Contact System) insulation boards?
Our integrated CCS harness insulation boards are designed to solve the complexity of lithium battery module interconnects. By combining the wiring harness with a high-performance insulation board, we provide a structured solution that enhances thermal management and structural integrity. This integration reduces manual assembly errors, minimizes voltage drop across cells, and optimizes space within high-density battery packs—making it a preferred choice for leading Tier 1 battery manufacturers like CATL.
3. Can LEX provide custom-engineered wiring solutions for ultra-fast EV charging infrastructure?
Yes. Modern DC fast-charging (350kW+) and ultra-fast infrastructure demand advanced thermal management and safety interlocks. LEX produces custom high-voltage charging harnesses that integrate HVIL (High Voltage Interlock Loop) safety circuits and optional liquid-cooling compatibility. We use UV-resistant and IP67/IP68 waterproof materials to ensure long-term outdoor durability, meeting international standards such as IEC 61851 and SAE J1772 for global interoperability.
4. How does LEX manage the global supply chain for North American B2B partners?
To mitigate geopolitical risks and communication delays, LEX operates a “Global Synergy” model. While our high-capacity, cost-effective manufacturing base is located in China, we provide localized technical support and project management through our sales office in Texas, USA. This dual-presence strategy allows our US-based clients to benefit from China’s mature industrial supply chain while enjoying real-time consulting, simplified logistics, and localized after-sales service.
5. Is LEX a certified supplier for major industrial and new energy vehicle (NEV) brands?
LEX has established a strategic track record as a trusted supplier for global giants in the new energy sector, including CATL, Hithium, and King Long Bus. Our role as a National “Specialized and Sophisticated” SME reflects our ability to meet the most stringent factory audits and technical requirements. Whether providing shadow-free connectivity for surgical lighting or high-voltage harnesses for electric powertrains, we deliver the quality assurance required by industry leaders.