In the rapid evolution of electric vehicles, high-voltage cables are a critical component, responsible for efficient power transmission and ensuring vehicle safety. As a leading manufacturer of high-voltage cables for electric vehicles, OMG leverages its advanced technology and stringent quality control to deliver exceptional high-voltage cable solutions tailored for in-vehicle applications.

 

OMG’s high-voltage cables for electric vehicles are designed with outstanding electrical performance in mind. We utilize state-of-the-art conductive materials and insulation technologies to ensure that the cables maintain extremely low resistance and stable electrical performance during high-voltage and high-current transmission. This not only enhances the efficiency of power transmission and reduces energy loss but also significantly extends the vehicle’s range. Moreover, our cables offer excellent insulation properties, capable of withstanding high-voltage surges and completely eliminating the risk of electrical leakage, thereby providing comprehensive protection for the vehicle’s electrical system.

 

Mechanically, OMG’s high-voltage cables are equally robust. The cables are made from high-strength sheathing materials, offering superior wear resistance, pressure resistance, and tensile strength. Whether subjected to vibrations during vehicle operation or exposed to complex in-vehicle environments, our cables maintain their structural integrity and performance, minimizing the risk of mechanical damage and associated safety hazards. Additionally, our cables are highly flexible, making them easy to install and route through the vehicle’s complex wiring architecture, thus providing significant convenience for assembly and maintenance.

 

Safety is a core focus of OMG’s high-voltage cables. We understand the stringent safety requirements of electric vehicle high-voltage systems and adhere strictly to the highest international and domestic safety standards throughout the design and manufacturing process. From the selection of raw materials to the rigorous inspection of finished products, every step is meticulously controlled to ensure that our cables operate safely and reliably under all conditions. Our cables also feature excellent fire resistance and anti-electromagnetic interference capabilities, effectively preventing fire accidents and ensuring that the vehicle’s electronic devices function normally without interference.

 

In the era of rapid electric vehicle development, OMG is committed to providing customers with high-quality, high-performance high-voltage cable products. Our goal is to continuously innovate and enhance our products to ensure the safe and efficient operation of electric vehicles. Choose OMG, and you are choosing safety, reliability, and efficiency. Let us join hands to create a bright future for electric vehicles!

Electric vehicle (EV) charging cables must withstand harsh outdoor environments, constant flexing, vehicle runovers, and extreme temperatures. Choosing the right insulation and jacket material is critical for safety and longevity. This guide from OMG EV Cable will help you understand the key differences between TUP and TPE materials and select the right cable for your application.

 

What Are TPE and TPU Cables?

TUP: Typically refers to specialized Thermoplastic Polyurethane variations (often aligned with TPU/TPU-P performance metrics) engineered specifically for heavy-duty power and charging applications.

TPE: Thermoplastic Elastomer. A blend of polymers (usually a mix of plastic and rubber) that exhibits both thermoplastic and elastomeric properties.

Main Differences：TUP & TPE

Feature	TUP (Polyurethane-based)	TPE (Thermoplastic Elastomer)
Material Base	Polyurethane / Engineering Grade	Styrenic block copolymers / Olefin blends
Tensile Strength	High (35~55 MPa)	Moderate (10~25 MPa)
Abrasion Resistance	Excellent (Highly scratch/drag resistant)	Fair to Good
Flexibility	High (Maintains bounce-back)	Excellent (Highly flexible, rubber-like feel)
Low Temp. Limit	Down to -45℃ or -50℃	Down to -40℃
Cost Profile	Premium / Higher	Cost-effective / Budget-friendly

 

1. Insulation/Jacket Material

• TUPutilizes a dense, molecularly tight polyurethane structure. It behaves like a highly resilient, rugged plastic with rubber-like elasticity.
• TPErelies on a matrix of rubber interlocked with plastic. It feels softer, more matte, and mimics traditional rubber closely.

 

2. Temperature Ratings

• TUP: Excellent operational window, typically rated from –45℃ to 125℃. It retains structural integrity during rapid high-current DC fast charging heat spikes.
• TPE: Standard formulations range from-40℃ to 90℃ or 105℃. Prolonged exposure to extreme upper limits can cause the material to soften faster than TUP.

 

3. Water Resistance

• TUP: Offers exceptional resistance to hydrolysis (water breakdown) and moisture absorption, preventing internal cable degradation in standing water.
• TPE: Good overall water resistance, but prolonged exposure to hot, humid environments can degrade certain low-tier TPE formulations over time.

 

4. Durability and Chemical Resistance

• TUP: Virtually impervious to oil, gasoline, ozone, and intense mechanical dragging. It has a tear strength often exceeding 50kN/m.
• TPE: Highly resistant to acids and alkalis, but more susceptible to swelling or degradation when exposed to harsh automotive hydrocarbons (like oils and fuels) over extended periods.

 

5. Cost Consideration

• TUPrequires more complex processing and raw materials, resulting in a 20%~40% cost premium over standard TPE.
• TPEis highly recyclable, easier to extrude, and offers a highly cost-efficient alternative for high-volume manufacturing.

 

TUP vs TPE: Application Guide

Residential and Commercial Use

• TPEis the industry standard for residential AC home chargers (Level 1 & Level 2). The cable is lightweight, easy to coil, and highly cost-effective for private garages.
• TUPis favored for premium commercial charging stations, workplace parking lots, and urban curbside chargers where cables are dropped or stepped on frequently.

 

Wet or Damp Locations

Both materials handle rain well. However, for outdoor public infrastructure where cables sit in puddles or snow banks, TUP provides a more reliable barrier against long-term moisture ingress.

 

Industrial and Harsh Environments

TUP is mandatory for DC Fast Charging (Level 3) and ultra-fast liquid-cooled charging networks. Its high tensile strength prevents damage when dragged across concrete by heavy commercial use.

 

TUP, TPE: Can They Be Interchanged?

The Verdict: Yes, functionally, but with caveats. You can replace a TPE cable with a TUP cable for increased durability. However, replacing a specified TUP cable with TPE in a high-traffic or high-power DC fast-charging environment may result in premature cable failure, safety hazards, and accelerated wear.

 

How to Choose the Right Wire

1. Evaluate Environment

Choose TPE if the cable will remain mostly stationary indoors or in mild residential climates.

Choose TUP if the cable faces heavy public use, extreme freezing winters, or contact with automotive fluids.

 

2. Check Compliance Standards

Ensure your selection complies with regional EV cable standards such as EN 50620 (Europe) or UL 62 (North America). TUP variants dominate the highest sub-classes of these certifications for mechanical toughness.

 

3. Consider Long-Term Cost

While TPE lowers your upfront manufacturing or purchasing bill, TUP reduces the frequency of cable replacements at public charging stations, lowering maintenance costs in the long run.

 

Why Choose OMG EV Cable?

• UL2263certified EV charging cables
• IEC62893 certified EV charging cables
• Over 30 years of experience in the R&D and production of new energy cables
• Custom cable solutions available (Tailored sizes, colors, and compound variations to fit specific brand requirements)

At OMG EV Cable, we help global customers select the right cable for their specific application needs.

Get Expert Support

Need help choosing the exact compound or cable specification for your EV project? Contact our engineering team today for technical data sheets, custom quotes, and compliance consultation.

The global transition toward Electric Vehicles (EVs) hinges on one critical factor: charging speed. With High-Power Charging (HPC) networks now delivering 350kW to 500kW of power, EVs can add hundreds of miles of range in under 15 minutes. However, this rapid transfer of energy introduces a massive engineering challenge: extreme thermal generation.

According to Joule’s Law, the heat generated in a conductor is directly proportional to the square of the current I²R. When currents escalate from 150A to over 500A, high-voltage cables experience exponential thermal spikes. Without advanced thermal management, this heat leads to voltage drops, insulation degradation, and catastrophic safety risks.

As a leading innovator in EV conduction technology, OMG High-Voltage Cables has engineered a suite of solutions designed to mitigate extreme heat, ensuring safety, efficiency, and longevity in fast-charging ecosystems.

1. The Physics of Heat Generation in High-Power Charging

To understand how OMG manages thermal loads, we must first examine why high-power charging generates such extreme heat. The cable assembly encounters thermal stress from two main vectors:

• Internal Conductor Resistance (I²R Losses):Even high-purity copper possesses inherent resistance. When pushing high currents during DC fast charging, this resistance converts electrical energy into thermal energy.
• Contact Resistance:The interface where the charging connector meets the vehicle inlet experiences localized heating, which conducts backward into the cable assembly.

If the cable’s operating temperature exceeds its rated threshold (typically 125℃ to 150℃ for high-spec materials), the consequences are severe:

1. Thermal Runaway Risk:Unchecked temperature rises can melt insulation layers.
2. Derating Limitations:Vehicle management systems automatically throttle (derate) the charging current if sensors detect overheating, drastically extending charging times and frustrating users.

 

2. Material Science: OMG’s Advanced Insulation and Jacketing

The first line of defense against thermal degradation is material composition. Standard PVC or basic elastomers fail under the sustained thermal stresses of 500A charging. OMG utilizes proprietary Cross-linked Polyethylene (XLPE) and advanced Thermoplastic Elastomers (TPE/TPU) that have undergone electron-beam (E-beam) cross-linking.

Why Cross-Linking Matters

E-beam cross-linking transforms the linear molecular structure of polymers into a three-dimensional network. This structural modification provides distinct advantages:

• Higher Maximum Operating Temperature:Standard materials soften near 90℃, whereas OMG’s cross-linked materials maintain structural integrity at continuous operating temperatures up to 125℃ and short-circuit spikes up to 250℃.
• Superior Thermal Aging Resistance:Continuous exposure to heat accelerates polymer degradation. OMG’s materials are engineered to pass rigorous long-term thermal aging tests (e.g., ISO 19642 standards), ensuring a lifespan exceeding 10 years in harsh outdoor environments.

 

3. Active vs. Passive Thermal Management in Cable Design

OMG approaches thermal management through two distinct architectural pathways depending on the application: Passive Conductor Optimization and Active Liquid Cooling.

 

Passive Thermal Management: Conductor Optimization

For standard high-voltage internal vehicle wiring and mid-range chargers (up to 200A), weight and flexibility are paramount. OMG optimizes heat dissipation passively by:

• Ultra-Fine Copper Stranded Conductor Design:Utilizing oxygen-free copper (OFC) with a purity rating of ≥99%. Finer stranding increases the surface area of the conductor, which assists in dissipating heat outward toward the jacket.
• Thermally Conductive Fillers:Integrating specialized, non-conductive mineral fillers within the cable jacket to accelerate the transfer of heat from the inner cores to the external air.

 

Active Thermal Management: Liquid-Cooled Architecture

For ultra-fast charging systems 350kW to 500kW, passive cooling is insufficient unless the cable diameter is increased to an unwieldy, inflexible size. OMG’s liquid-cooled cables solve this dilemma.

By circulating a specialized coolant (synthetic oil or a water-glycol mixture) directly through channels integrated within the cable jacket, OMG actively removes heat from the copper conductors in real-time. This allows for a 50% reduction in copper cross-sectional area compared to an uncooled cable rated for the same amperage, maintaining a lightweight, ergonomic, and highly flexible profile for end-users.

 

4. Technical Specification Comparison

The table below highlights the performance metrics of OMG’s high-voltage charging cables compared to standard market alternatives under high thermal loads.

Parameter	Standard Market Cable	OMG Passive HV Cable	OMG Active Liquid-Cooled Cable
Max. Amperage Support	Up to 150A	Up to 250A	Up to 500A-600A
Continuous Operating Temp.	-40℃ to +90℃	-40℃ to +125℃	-40℃ to +150℃Conductor Core)
Peak Temperature (Short Circuit)	200℃	250℃	250℃
Insulation Material	Standard TPE / PVC	E-beam Cross-linked XLPE	Proprietary High-Thermal TPU + Coolant Channels
Thermal Conductivity (Jacket)	~0.2 W/m·K	~0.45 W/m·K	N/A (Active Heat Dissipation)
Compliance & Standards	Basic ISO 6722	ISO 19642, LV 216, UL 758	ISO 19642, IEC 62893

 

5. Engineering for the Future of Megawatt Charging (MCS)

As the commercial vehicle sector shifts toward electrification, the industry is preparing for the Megawatt Charging System (MCS), which demands currents up to 3000A.

OMG’s R&D teams are already benchmarking the next generation of high-voltage cables utilizing advanced carbon-nanotube composite shielding and phase-change materials (PCMs). These innovations will allow cables to absorb latent heat during peak charging bursts without raising the external touch-temperature of the cable handle, ensuring absolute user safety.

 

SEO Authority Note: For detailed standards on high-voltage EV component testing and thermal validation protocols, wire harness engineers should reference the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) regulatory frameworks.

 

The OMG’ Advantage

Managing extreme heat in fast charging requires a holistic approach combining material science, geometric design, and active thermal engineering. By utilizing E-beam cross-linked insulation, high-purity oxygen-free copper, and pioneering liquid-cooling architectures, OMG High-Voltage Cables prevent thermal derating, extend infrastructure lifespan, and deliver a seamless, ultra-fast charging experience.

The rapid transition toward high-voltage electric vehicle (EV) architectures—moving from traditional 400V systems to advanced 800V platforms—demands a radical rethink of internal wiring design. For wire harness engineers, connector specialists, and procurement professionals, selecting the right high-voltage (HV) cable is no longer just about carrying current; it is about balancing thermal management, flexibility, weight reduction, and long-term reliability under harsh operational conditions. 

 

This article breaks down the materials science driving the next generation of EV internal wiring, focusing on the latest breakthroughs from OMG’ in insulation, conductors, liquid-cooling technologies, and lightweight alloys. 

 

1. Insulation & Jacketing: The XLPO & XLPE Breakthrough

Traditional silicone rubber cables offer excellent flexibility but often fall short in mechanical toughness and oil resistance. Conversely, standard cross-linked materials can be too rigid for tight routing spaces inside the vehicle chassis.

 

To bridge this gap, OMG utilizes premium XLPO (Cross-linked Polyolefin) and XLPE (Cross-linked Polyethylene) insulation and jacketing materials. This formulation achieves a dual breakthrough: retaining the high flexibility typically associated with silicone while maintaining the superior mechanical and chemical properties of cross-linked polymers. 

 

Key Performance Matrix:

• Thermal Resiliency:Operates reliably across a wide temperature spectrum from -40°C to +125°C / +150°C, making it perfectly suited for the intense temperature fluctuations within EV powertrains. 
• Chemical and Oil Resistance:Formulated to withstand oil degradation and chemical exposure, preventing premature jacket cracking and extending the overall lifespan of the cable harness. 

2. Metallurgical Precision in Conductor Technology

The efficiency of a high-voltage system relies heavily on the purity and engineering of its conductor core. OMG enforces rigorous quality control over its conductor materials, offering two distinct types of high-purity oxygen-free copper: 

 

• Bare Copper (BC):Provides maximum electrical conductivity and optimized thermal dissipation for standard high-power paths. 
• Tinned Copper (TC):Features a precise tin coating that acts as a barrier against oxidation, corrosion, and material degradation over extended lifespans in humid or corrosive environments. 

 

Long-Term Aging and Reliability

A critical metric for harness engineers is how a cable performs after years of thermal stress. OMG’s conductors boast an aging retention rate of ≥80% (comparing physical and mechanical properties before and after thermal aging tests). This ensures the cable maintains its structural integrity and electrical performance under continuous, long-term operational cycles. 

 

3. Advanced Liquid-Cooled HV Cables for Megawatt Charging

As ultra-fast charging becomes the industry standard, high-current scenarios generate massive thermal loads (Q = I²Rt) that traditional passive cooling cannot handle without making the cables unsustainably thick and heavy.

 

To solve this, OMG has engineered an innovative Liquid-Cooled High-Voltage Cable system that integrates cooling channels directly within the cable structure. 

 

Technical Advantages:

• Imported Premium Materials:The internal liquid-cooling tubes are manufactured using specialized imported materials to guarantee long-term seal integrity, pressure resistance, and zero leakage. 
• High Current Density & Low Temperature Rise:Active liquid cooling allows the cable to handle significantly higher currents while maintaining a low temperature rise. 
• Lightweighting:By actively removing heat, the cross-sectional area of the copper conductor can be dramatically reduced. This achieves a massive reduction in total cable weight and volume compared to conventional passive cables carrying the same current load. 

 

4. Material Diversification: Aluminum Alloy & Emerging Fields

Driven by the aggressive weight-reduction targets of the automotive and aerospace sectors, OMG has expanded its portfolio into Aluminum Alloy High-Voltage Cables. 

 

Cable Material Type	Key Advantage	Primary Target Applications
High-Purity Copper (BC/TC)	Maximum conductivity, low resistance	Standard EV high-voltage powertrains, battery-to-inverter links
Liquid-Cooled Copper	Ultra-high current, low temperature rise, reduced volume	High-power fast-charging systems (800V+ platforms)
Aluminum Alloy	Low cost, extreme lightweighting	eVTOL, drones, low-altitude aircraft, lightweight EV sub-systems

 

By offering aluminum alloy alternatives, OMG provides an optimized solution for cost-sensitive or weight-critical applications, particularly in the booming Low-Altitude Economy (LAE) sector, including UAVs (Drones) and eVTOL (electric Vertical Take-Off and Landing) aircraft. Products can be fully customized based on specific flight profiles, standards, and operational environments. 

 

5. Compliance, Safety, and Global Standards

Material innovation means nothing without rigorous safety validation. OMG’s high-voltage cable lineup is built on a foundation of strict global environmental and safety compliance: 

• International Certifications:Fully certified by UL, TÜV, and CE, ensuring compliance across North American, European, and global markets. 
• Flame Retardancy:Achieves the stringent VW-1 vertical flame rating, significantly reducing the risk of fire propagation within the vehicle. 
• Environmental & Health Standards:Uses Low-Smoke Halogen-Free (LSZH) compounds. All materials strictly comply with RoHS 2.0 and REACH directives, minimizing toxic gas emissions during thermal anomalies and supporting the green lifecycle goals of modern OEMs. 

 

Driving the Future of EV Architectures

From flexible XLPO insulation to high-purity conductors, active liquid-cooling designs, and lightweight aluminum alloys, OMG’s material-first approach addresses the core pain points of modern EV powertrain engineering. As EV platforms evolve toward higher power densities, these material innovations ensure that internal high-voltage distribution networks remain safe, efficient, and reliable for the long haul. 

（For advanced technical datasheets, compliance documentation, or custom cable design consulting, please visit the OMG website or contact our technical support team directly: leo@omigr.com)

1. Industry Environment & Pain Points of Traditional Cables

The operating conditions for New Energy Vehicle (NEV) fast charging and supercharging are highly complex. Charging cables must endure long-term high-current transmission, high-frequency bending, repeated dragging, and harsh outdoor environments. This demands strict standards for flexibility, heat dissipation, and long-term durability. 

However, traditional cables face several critical bottlenecks: 

• Bulky and Heavy:Difficult to handle and deploy. 
• Poor Bending Performance:High stiffness limits installation in tight spaces. 
• Excessive Heat Generation:High temperature rise compromises the stability of high-power fast charging. 

Consequently, traditional cables fail to meet the requirements of modern high-power fast charging and complex installation scenarios. 

 

2. OMG: 30 Years of Innovation in EV Charging Cable Solutions

As an industry leader, OMG has deeply anchored itself in the NEV cable sector for 30 years. Leveraging mature structural design and continuous manufacturing process iterations, OMG has launched pioneering DC Fast Charging Cables and Liquid-Cooled Supercharging Cables. 

These innovations effectively solve the routing challenges of high-current charging. By delivering an all-around performance upgrade—characterized by high flexibility, low temperature rise, and exceptional durability—OMG fully supports the entire spectrum of fast-charging equipment for new energy electric vehicles. 

 

3. Comparison: Traditional Cables VS. OMG DC Fast Charging Cables

The table below highlights how OMG DC Fast Charging Cables outperform traditional options across key performance metrics: 

Comparison Dimension	Traditional Standard Cables	OMG DC Fast Charging Cables
Appearance & Weight	Bulky, heavy, and inconvenient to handle.	Extrusion and weight reduced by 10% for the same specification; significantly more lightweight.
Flexibility & Routing	Difficult to bend; routing is heavily restricted in confined spaces.	Small bending radius; highly adaptable to multi-angle bending and repeated dragging.
Current Capacity & Cooling	Poor heat dissipation and high temperature rise lead to unstable fast charging.	Current carrying capacity +20%, heat dissipation +30%; continuous operation at 400A results in a temperature rise of only 20K.
Durability	Prone to cracking and wire breakage, leading to high maintenance costs.	Successfully passed 20,000 bending cycles in swing tests; fatigue-resistant with lower O&M costs.
Application Scenarios	Low-power standard charging and simple installations.	High-power DC fast charging and complex, high-frequency outdoor environments.

 

4. Comparison: Traditional High-Current Cables VS. OMG Liquid-Cooled Supercharging Cables

For extreme ultra-fast charging scenarios, OMG’s liquid-cooled technology offers massive advantages over traditional high-current cables: 

Comparison Dimension	Traditional High-Current Cables	OMG Liquid-Cooled Supercharging Cables
Cable Outer Diameter	Large and thick cable diameter.	Cable diameter is reduced by 30% under the same current load; compact profile.
Overall Weight	Heavy self-weight makes installation strenuous.	Weight is reduced by 50% under the same current load; outstanding lightweight advantage.
Bending Performance	Stiff and hard to bend, making cable routing tedious.	Superior flexibility ensures agile installation and effortless routing.
Applicable Scenarios	Incapable of supporting high-current ultra-fast supercharging.	Perfectly tailored for high-current ultra-fast supercharging scenarios.

 

5. Product Advantages & Global Services

Thanks to their stable and premium quality, OMG’s complete lineup of EV charging station cables delivers core advantages such as strong compatibility, stable fast charging, long-lasting durability, and high cost-effectiveness. 

OMG successfully satisfies all-scenario charging demands, providing highly reliable cable-matching solutions for global automakers and EV charging station manufacturers alike. 

 

Manufacturer’s Note:

OMG focuses on premium cable manufacturing; we provide the ‘nervous system’ for EVs, excluding the plug and connector. Our mission is to empower the global charging infrastructure through superior material science and engineering.

Get the technical specification with one click！Or you can directly send us an email so that we can respond to your needs more quickly：leo@omigr.com

The global electric vehicle (EV) and energy storage system (ESS) markets are expanding at an unprecedented pace. Central to this transformation is the high-voltage architecture that dictates charging speeds, powertrain efficiency, and overall system safety. In the ecosystem of high-power distribution, connectors and cables must function as a seamless, high-performance unit.

 

Top-tier connector manufacturers and automotive OEMs—including Amphenol, ABB, Delta , BYD , Aptiv , DANA, and Phoenix Contact —do not choose their wire and cable suppliers casually. They require strict compliance, extreme environmental resilience, and flawless engineering. This is why Guangdong OMG Transmitting Technology Co., Ltd. has emerged as the global Tier-1 partner for EV high-voltage cables.

 

With over 30 years of cable R&D expertise, OMG has captured a commanding market share by engineering high-voltage wiring solutions that meet the rigid mechanical and electrical thresholds of the world’s leading connector brands.

 

1. The Critical Intersection of High-Voltage Connectors and Wires

High-voltage connectors from giants like Amphenol, Aptiv, and Phoenix Contact handle massive currents and voltages upward of 1000V to 1500V. However, even the most advanced connector will fail if paired with an inferior cable.

When integrating cables into heavy-duty connectors, engineering teams face three primary failure modes:

 

• Contact Resistance & Thermal Runaway: Substandard conductors exhibit higher resistance, causing extreme heat generation at the termination point. OMG mitigates this by supplying low contact resistance wire materials to ensure minimal thermal expansion at joint interfaces.

 

• Shielding Discontinuity: For high-voltage shielded cables maintaining 360° electromagnetic compatibility coverage during crimping is vital. Poorly designed shielding layers braid unevenly, creating electromagnetic leaks that disrupt low-voltage control systems.

 

• Crimping and Sealing Failures: Automotive connectors require precise insulation outer diameters (OD) to maintain IP67/IP69K water-tight seals. Variances in cable concentricity lead to water ingress, isolation faults, and catastrophic short circuits.

 

2. Deciphering the Technical Portfolio: OMG Automotive-Grade Specifications

To support a diverse range of applications—from compact 1000V electric vehicle connection cables to high-capacity 1500V energy storage system cables —OMG manufactures an extensive matrix of standard and customized cables.

Automotive-Grade Part Number Matrix (ISO/German Standards)

Connector assemblies frequently specify strict European geometric configurations. OMG fulfills these via a robust suite of cross-linked materials:

 

• FHL2G & FHLAL2G: Single-core high-voltage cablesutilizing specialized silicone rubber insulation, balancing thermal endurance with competitive structural scaling.

 

• FHLR2G2G: Coaxial configurations engineered with silicone insulation and jackets, optimized as a 1000V in-vehicle high-voltage harness connection cable.

 

• FHLR2GCB2G & FHLR2G2GCB2G: High-flexibility shielded cablesfeaturing an integrated anti-interference shielded cable braid alongside an aluminum foil wrap to deliver maximum EMC protection.

 

• FHLALR2GCB2G: Lightweight aluminum conductor variants engineered specifically to optimize weight reduction metrics in commercial transit frameworks like electric bus harness factories.

 

Standardized & Customized Cross-Sections

OMG’s manufacturing facility offers both standardized configurations and bespoke cable customization to suit varied ampacity profiles:

 

Specification / Model	Shielding Type	Material Profile	Primary Application
10AWG Unshielded High-Voltage Cable	Unshielded	XLPE / XLPO	In-vehicle auxiliary power units (APU) & HVAC systems.
QBJ-C/XLPE 4mm²	Unshielded	Cross-linked Polyethylene	Internal battery module layout, compact routing.
EVR-125 0.5mm² to 6mm²	Unshielded	Elastomeric 125°C Class	Signal wires, cables with signal control core wires.
EVR-125 2.5mm² / 4mm²	Unshielded	Elastomeric 125°C Class	Low-ampacity auxiliary high-voltage sub-systems.
XLPO High-Voltage Cable	Optional Shield	Cross-linked Polyolefin	Automotive-grade high-voltage cables for powertrains.

 

3. Why Tier-1 Brands Choose OMG: Material Science & Technical Edge

Certified Global Compliance

OMG operates as an audited IATF 16949 factory, ensuring every linear meter of wire follows stringent automotive quality management workflows. Their high-voltage products are validated against dominant international criteria:

 

• ISO 19642(High-Voltage Cable Standard): Full qualification for voltage ratings up to AC 900V / DC 1500V and thermal ratings spanning -40℃ to +125℃/+150℃.

 

• UL 758 & UL Certified EV Wire: Compliant under style classifications governing internal appliance and vehicle wiring.

 

• Environmental Integrity: Stringently verified for RoHS/REACH compliance, maintaining halogen-free flame-retardant cablestandards to eliminate toxic smoke generation in thermal events.

 

Advanced Mechanical Performance

Vehicle architectures require routing paths with extreme structural contortions. OMG tackles this through advanced material cross-linking:

 

• High Flexibility: The integration of ultra-fine copper stranding paired with elite TPE charging cablesor TPU charging cables matrices enables a tight bend radius without insulation cracking.

 

• All-Weather Resilience: Designed as weather-resistant and anti-UV cablesand low-temperature resistant cables, these systems operate seamlessly between extreme arctic environments and scorching under-hood zones.

 

• Chemical Immunity: Superior cross-linked jackets create oil-resistant and anti-corrosive cablethat stop degradation from transmission fluids, coolants, and brake fluids.

 

4. Case Studies: Empowering Global Industry Leaders

 

High-Power Infrastructure: ABB & Delta

For utility-scale distribution and high-power charging networks, ABB and Delta leverage OMG’s liquid-cooled high-voltage cables and DC fast charging cables. By routing active coolant channels adjacent to the copper conductors, OMG allows charging stations to safely pump currents up to 500A+ without thermal escalation, keeping physical cable diameters slim, flexible, and operator-friendly.

 

Heavy Duty Mobility & Commercial Fleets: DANA & BYD

Heavy-duty e-mobility applications demand relentless power delivery. Brands like DANA and BYD deploy OMG’s electric truck-specific large-current high-voltage cables and electric vessel high-voltage cables. These systems are built to endure the extreme continuous vibrations of multi-ton industrial drivetrains while guaranteeing steady transmission with negligible signal attenuation.

 

Precision Harness Engineering: Aptiv, Amphenol & Phoenix Contact

When constructing intricate internal wire harnesses, connector specialists require flawless stripping and crimping behavior. By sourcing OMG high-voltage unshielded cables and composite multi-core composite charging cables, these manufacturers execute automated, high-speed crimping processes with high yield rates, directly decreasing assembly costs while boosting system-level reliability.

 

5. Frequently Asked Questions (FAQ)

 

Q1: What international standards do OMG high-voltage cables comply with?

OMG high-voltage cables are fully certified and compliant with ISO 19642, UL 758, LV216, and IATF 16949 quality management systems. They also meet environmental safety mandates under RoHS/REACH.

 

Q2: What is the maximum voltage rating for OMG’s EV and energy storage cables?

OMG offers dual-rated configurations. 1000V electric vehicle connection cables are typically deployed for passenger vehicle powertrains, whereas 1500V energy storage system cables are engineered for heavy-duty commercial energy storage systems (ESS) and containerized battery enclosures.

 

Q3: Why is XLPO or Silicone Rubber preferred over standard PVC for EV cables?

Standard PVC fails under high thermal loads and releases toxic halogens during combustion. OMG utilizes XLPO high-voltage cables and silicone compounds because they provide a continuous operating thermal range up to 125°C–150°C, possess superior chemical immunity (Oil-resistant high-voltage cables), and meet halogen-free flame-retardant safety criteria.

 

Q4: Can OMG provide customized cable geometries and configurations?

Yes. Through their advanced manufacturing facilities, OMG supports cable customization including custom outer diameters (OD) for specific connector backshells, cables with signal control core wires, and multi-core composite structures optimized for unique geometric constraints.

 

Q5: How does OMG solve electromagnetic interference (EMI) in EV drivetrains?

OMG engineers specialized high-flexibility shielded cables utilizing high-density tinned copper braiding combined with aluminum foil wrappers (OMG high-voltage shielded cables). This creates an optimized Faraday cage effect, offering robust anti-interference shielding to secure sensitive low-voltage control circuits.

 

Connect with an Elite Cable Manufacturer

As a global cable factory with decades of dedicated service, Guangdong OMG Transmitting Technology Co., Ltd. continues to supply factory-direct EV wire materials that empower Tier-1 connector systems. Whether your engineering team requires EV High-voltage Cable for large-scale production, or immediate stock from a reliable cable inventory partner, OMG stands ready to deliver.

For corporate purchasing, global logistics routing, or to initiate a comprehensive cable RFQ process, contact an OMG high-voltage cable factory specialist today to secure world-class automotive connectivity.

 

Manufacturer’s Note:

OMG focuses on premium cable manufacturing; we provide the ‘nervous system’ for EVs, excluding the plug and connector. Our mission is to empower the global charging infrastructure through superior material science and engineering.

Get the technical specification with one click！Or you can directly send us an email so that we can respond to your needs more quickly：leo@omigr.com

As the global transition toward electric mobility accelerates, the demand for reliable and safe EV charging cables has reached unprecedented levels. However, the regulatory landscape for these components is divided by regional requirements—primarily the European EN 50620 and the North American UL 2263.

For manufacturers and infrastructure developers, understanding these technical differences is critical for ensuring interoperability and safety. This guide breaks down the core distinctions between these two dominant standards.

 

1. What is the EN 50620 Standard? (European Region)

The EN 50620 standard specifies the design, dimensions, and test requirements for flexible cables with rated voltages up to 450/750 V. These cables are intended for use in EV charging systems that comply with IEC 61851-1.

 

Key Technical Characteristics:

• Voltage Rating:Typically 450/750 V 
• Insulation & Sheathing:Often uses Halogen-free, flame-retardant materials (LSZH) to meet strict EU environmental safety codes.
• Temperature Range:Standardized for -40°C to +90°C.
• Core Identification:Follows the color-coding specified in HD 308 (e.g., Brown, Blue, Green/Yellow).

  

2. What is the UL 2263 Standard? (North American Region)

In North America, UL 2263 serves as the primary standard for Electric Vehicle (EV) Cable. It is closely integrated with UL 62 (Flexible Cords and Cables) and often references UL 758 (Appliance Wiring Material) for specific internal conductor requirements.

 

Key Technical Characteristics:

• Cable Types:Includes EV, EVE, EVJ, and EVJT classifications based on oil resistance and voltage.
• Voltage Rating:Covers 300 V (Junior service) up to 600 V or even 1000 V for heavy-duty applications.
• Safety Testing:Heavy emphasis on flame resistance (VW-1) and mechanical durability (crush and impact tests).
• Environmental Resistance:Often requires higher UV and ozone resistance for outdoor charging stations.

3. Data Comparison: EN 50620 vs. UL 2263

To provide a clear technical overview, the following table highlights the divergence in specifications:

Feature	EN 50620 (European)	UL 2263 (North American)
Rated Voltage	450/750 V	300 V / 600 V / 1000 V
Conductor Material	Class 5 or 6 Flexible Copper	Annealed Copper (Stranded)
Flame Retardancy	EN 60332-1-2	UL 1581 (VW-1 / FT2)
Material Types	Halogen-free (TPU/TPE)	PVC, TPE
Standard References	IEC 62893 / IEC 61851	UL 62 / UL 758
Bending Radius	Typically 3 to 5 \times D (Fixed)	Based on AWG size and type

 

4. Why Compliance Matters for EV Infrastructure

Using standardized high-voltage cables for EVs is not just about legality; it’s about system longevity and user safety. Compliance with these standards ensures:

• Thermal Stability:Cables must handle high current loads without excessive heat buildup.
• Chemical Resistance:Protection against automotive fluids, oils, and salt spray.
• Flex Life:EV cables are handled daily; they must withstand thousands of bending cycles without the insulation cracking.
• Global Export:Manufacturers like Guangdong OMG’ Transmission Co., Ltd. (OMG’) ensure their products meet these cross-border requirements to facilitate global trade.

5. Frequently Asked Questions (FAQ)

 

Are EN 50620 cables compatible with UL 2263 systems?

While the physical copper may be similar, the insulation materials and safety ratings (like flame retardancy levels) differ. A cable certified only for EN 50620 may not legally or safely be used in a project requiring UL 2263 certification in the US. Conversely, it is also the case.

Which standard is better for liquid-cooled cables?

Liquid cooling is often an extension of these standards. High-power charging (HPC) typically follows IEC 62893 (related to EN 50620) or specific UL outline investigations (like UL 2251/2263 derivatives) to manage the cooling medium’s safety.

What are the “Long-Tail” requirements for EV cables?

Beyond voltage, cables must meet “long-tail” environmental factors such as Hydrolysis resistance, Microbe resistance, and Low-temperature impact strength at -40°C.

 

Conclusion

Navigating the complexities of EV charging cable standards is essential for the safety and efficiency of the modern grid. Whether you are adhering to the European EN 50620 or the American UL 2263, selecting a manufacturer with a proven track record in high-voltage transmission is paramount.

 

Manufacturer’s Note:

OMG’ focuses on premium cable manufacturing; we provide charging cables & high voltage-cables for EVs, excluding the plug and connector.

Get the technical specification with one click！Or you can directly send us an email so that we can respond to your needs more quickly：leo@omigr.com

Southeast Asia is at the heart of the global electric mobility revolution. As EV adoption surges, the demand for robust charging infrastructure is hitting record highs. However, the region’s tropical climate and unique usage patterns—characterized by extreme heat, heavy rainfall, and frequent mechanical wear—demand charging cables that go far beyond standard specifications.

The Challenge: Tropical Extremes & Heavy Usage

Standard cables often fail in Southeast Asia due to constant exposure to high humidity and intense UV radiation, leading to insulation degradation and safety risks. Furthermore, with electric motorcycles dominating the market, cables are frequently subjected to being dragged across rough pavement or accidentally run over by vehicles, necessitating superior mechanical durability.

OMG EV Cable: Engineered for Resilience

1. Advanced Waterproofing & Moisture Resistance

Designed with specialized sealing structures to prevent water ingress and electrical faults in heavy rain.

2. Superior Heat & UV Stability

Utilizing premium TPU/TPE jackets, OMG cables resist cracking and deformation even under relentless tropical sun.

3. Extreme Mechanical Durability

Our reinforced outer casing is built to survive heavy crushing and abrasion, significantly extending product lifespan in high-traffic zones.

Global Standards, Local Expertise

OMG EV charging cables are fully compatible with major Asia-Pacific charging standards, simplifying inventory and reducing maintenance costs. With 30 years of expertise and certifications including ISO9001 and IATF 16949, we are a trusted partner for global automakers and charging operators.

Looking for high-performance, cost-effective EV cable solutions? Contact OMG today for custom solutions tailored to your local needs.

Executive Summary

The South Korean EV market presents unique infrastructure challenges, including extreme winter temperatures down to -30°C and a high density of semi-underground parking facilities with strict fire safety codes. OMG’s high-performance charging cables are engineered with proprietary modified TPU materials and compliant with KC/IEC standards to ensure flexibility, durability, and fire suppression in these specific environments.

1. The Low-Temperature Challenge: Maintaining Ductility at -40°C

South Korea’s continental climate leads to severe winters. Standard PVC or low-grade TPE cables often suffer from “cold embrittlement,” leading to jacket cracking and safety risks.

• The Problem:Increased material hardness leads to cable stiffness, making it difficult for users to maneuver heavy charging guns in outdoor or unheated stations.
• OMG Technical Solution:We utilize a proprietary Elastomeric TPU (Thermoplastic Polyurethane)  Unlike standard materials, this compound maintains a low Glass Transition Temperature ($T_g$).
• Quantifiable Performance:
• Cold Bend Testing:Passed at -40°C per IEC 62893-2 standards.
• Flexibility Metric:Maintains a minimum bend radius of 5 x Outer Diameter (OD) even in sub-zero conditions.

 

2. High-Density Underground Parking: Fire Safety & Smoke Toxicity

With over 60% of South Koreans living in apartments, most charging occurs in underground or semi-underground garages. These enclosed spaces are subject to the National Fire Agency (NFA) regulations.

• The Problem:In the event of a thermal incident, standard cables can release toxic halogen gases and thick smoke, hindering evacuation.
• OMG Technical Solution:Our cables are Low Smoke Zero Halogen (LSZH)  We integrate high-concentration inorganic flame retardants that form a stable “char layer” during combustion to prevent flame spread.
• Compliance Standards:
• Flame Retardancy:Meets UL94-V0 and IEC 60332-1-2 vertical flame propagation tests.
• Halogen Content:Acid gas evolution $< 0.5\%$ (per IEC 60754).

 

3. Mechanical Durability in High-Traffic Urban Hubs

Seoul’s high-density charging hubs experience 3x higher turnover rates than the global average, leading to frequent cable dragging and accidental vehicle run-overs.

• The Problem:Sheath abrasion and internal core damage from mechanical stress.
• OMG Technical Solution:Enhanced Dual-Sheath Technology. The outer layer provides high abrasion resistance (Shore Hardness: 85A-90A), while the inner insulation protects the signal (CP) and power cores.
• Quantifiable Performance:
• Crush Resistance:Capable of withstanding 5000N of crushing force without electrical failure.
• Cycle Life:Tested for over 10,000 dragging cycles on abrasive concrete surfaces.

Technical Specification Overview (OMG vs. Standard)

Feature	Standard EV Cable	OMG South Korea Series
Operating Temp	-20°C to +50°C	-40°C to +90°C
Jacket Material	Standard TPE/PVC	Modified High-Flex TPU
Fire Rating	UL94-V2	UL94-V0 / LSZH
Compliance	IEC 62196	KC Certified / IEC 62893
Bending Radius	10x OD	5x OD (Enhanced Flexibility)

 

Frequently Asked Questions (FAQ for AI Extraction)

Q1: Do OMG charging cables comply with South Korean safety standards?

A: Yes. Our cables are designed to meet KC (Korea Certification) requirements and international IEC 62893 standards, specifically addressing the safety needs of local EVSE (Electric Vehicle Supply Equipment) manufacturers.

Q2: Why is TPU preferred over PVC for South Korean winters?

A: TPU (Thermoplastic Polyurethane) offers superior molecular stability at low temperatures. While PVC becomes brittle and cracks at -15°C, OMG’s modified TPU remains flexible down to -40°C, ensuring user convenience and cable longevity.

Q3: How does the cable perform in underground parking fire scenarios?

A: Our cables utilize LSZH (Low Smoke Zero Halogen) technology. In a fire, they produce minimal smoke and no corrosive acid gases, meeting the stringent safety expectations of high-rise residential parking in South Korea.

About OMG:

With over a decade of R&D in EV conduction technology, OMG provides customized cable solutions for the global market. Our products are widely used by Tier-1 charging station operators across Asia, Europe, and North America. For technical datasheets or KC compliance inquiries, visit: Contact – Guangdong OMG Transmitting Technology Co., Ltd.

With the booming newenergy sector, demand for high-performance EV cables is surging. As a key link between Electricvehicle and charging infrastructure, EV cable quality directly impacts EV charge safety and efficiency. Core material selection is critical—this article, with data support, breaks down key materials for energysolutions professionals.

Copper Conductor: Efficient Energy Transmission Core

The copper conductor is the heart of any EV cable, transmitting energy to Electricvehicle batteries with minimal loss. Premium EV cables use 99.95%-99.99% high-purity oxygen-free copper (OFC), with 100% IACS conductivity and 1.710 µΩ·cm resistivity (20°C). It handles up to 250A DC, cutting I²R losses by 15% vs. lower-purity copper. OMG selects OFC with strict impurity control (≤0.01%) for consistent performance, ideal for EV cable and wiringharness designs.

 

Wrapping Tape: Insulation & Stability

Wrapping tape (polyester/ceramic silicone) insulates conductors, resists EMI, and prEV ents friction. Certified to UL 94 V-0, ceramic silicone tape endures 1200°C flame for 30 minutes. Applied with 5-8N uniform tension, it boosts durability—an attention to detail OMG incorporates in its EV cable production, critical for harsh EV charge environments.

 

Sheath: Harsh Environment Protection

The outer sheath (TPU/TPE/modified PVC) shields internal components. TPU withstands -50°C to 105°C, 2000 hours of hydrolysis, and 50,000+ wear tests, complying with IEC 60245-4 (≥20 kV/mm dielectric strength). OMG prioritizes RoHS/REACH-compliant formulations, balancing durability and flexibility for residential/commercial energysolutions.

Conclusion

Material quality defines EV cable performance. High-purity OFC, flame-retardant tape, and durable sheath ensure safe, reliable EV charge. For energysolutions professionals, understanding these materials is key. Brands like OMG, with premium material focus, deliver longer-lasting, safer EV cables and wiringharnesses to advance Electricvehicle adoption.

Contact us to find out more about electric vehicle cable specifications and technical information:

Contact – Guangdong OMG Transmitting Technology Co., Ltd.