Asia Pacific High Power Electric Vehicle Busbar Market Size - By Material, Growth Forecast, 2026 - 2035

Asia Pacific High Power Electric Vehicle Busbar Market Size

According to a recent study by Global Market Insights Inc., the Asia Pacific high power electric vehicle busbar market was estimated at USD 384.3 million in 2025. The market is expected to grow from USD 489 million in 2026 to USD 1.66 billion in 2035, at a CAGR of 14.6%.

• Rapid electrification of public transit along with rapid adoption higher voltage architectures is augmenting the business landscape. Various countries across the region are accelerating the shift to battery electric buses, which in turn is pushing OEMs and Tier-1s toward higher-voltage (800–1000V) electrical architectures.
   
• For instance, in August 2025, the government of South Korea has committed to convert 100 percent of public transit buses to zero-emission by 2030. The government is investing heavily in hydrogen and electric charging infrastructure, with national roadmaps targeting more than 500 hydrogen refueling stations and tens of thousands of EV chargers by the end of 2030.
   
• High-power busbars, rigid laminated, flexible, or copper/aluminum hybrid are essential to safely route dense current between battery packs, inverters, DC link capacitors, junction boxes, and fast-charge interfaces while minimizing thermal rise and inductance. As route lengths grow and depot cycles compress, systems need higher continuous current ratings and superior creepage/clearance control.
   
• Public procurement schemes in the region are lowering financing risk and scaling electric bus orders, which necessitates robust depot electrical upgrades (transformers, DC chargers, switchgear) and higher-ampacity internal vehicle busbars. Aggregation reduces unit costs and standardizes technical specs, including HV harnessing and busbar current ratings.
   
• For reference, in September 2024, India’s PM-eBus Sewa program, approved by the Union Cabinet, targets tens of thousands of e-buses and includes a payment security mechanism and central assistance for behind the meter power infrastructure, directly triggering high-power electrical integration in fleets and depots.
   
• Payment security mechanisms and long-term O&M frameworks are giving OEMs confidence to invest in high-power drivetrains and thermal managed power distribution. As tenders mature, technical evaluation increasingly focuses on high-power safety (arc mitigation, insulation coordination) and interoperability across models, which elevates the need for reliably engineered busbar assemblies.
   
• The build-out of ultra-fast charging and battery-swap networks increases instantaneous current flow and thermal loading inside EVs. Busbars must accommodate higher peak currents during charge acceptance and transient events, while maintaining low inductance to avoid voltage overshoot in SiC-based inverters.
   
• For instance, in June 2024, NIO launched Power Swap Station 4.0 with a 640kW liquid cooled power charger (up to 1,000V, 765A), and expanded swap station capacity and speed, illustrating the shift to very high charging power that escalates busbar current and thermal requirements inside vehicles.
   
• For buses that leverage battery swapping, busbar interfaces need repeatable mechanical and electrical integrity across cycles, with robust contact systems and arc resistant design. Network operators’ move to 640kW+ chargers and 1,000V systems tightens safety norms and compels OEMs to validate busbar thermal margins and insulation systems more rigorously.
   

Asia Pacific High Power Electric Vehicle Busbar Market Trends

• Policy roadmaps in the region are prioritizing high power charging along expressways and urban hubs, encouraging 90–150kW minimums and pushing toward 1,000V systems. This public policy signal cascades into OEM design choices for high-power distribution, with busbars engineered for higher dielectric strength, tighter EMC, and improved thermal pathways.
   
• For illustration, at Japan Mobility Show 2025, Hyundai showcased, new NEXO, its leadership in electrification and hydrogen. This is anticipated to enhance the company’s business model reforms to accelerate EV infrastructure, providing a policy basis for higher-power vehicle electrical designs.
   
• Standard setting around metering accuracy, safety, and charger classifications also feeds back into how vehicle powertrains and busbars are specified to handle higher-rate energy transfer reliably, reducing charge times for fleets and public transport.
   
• Battery pack innovations (cell-to-pack and cell-to-chassis) are increasing packing efficiency and energy density, elevating continuous current through main busbars. Better thermal interfaces, larger cooling surfaces, and optimized load paths require busbars with improved conductivity (copper alloys, coated aluminum) and advanced insulation to maintain reliability across vibration and shock.
   
• For instance, in May 2025, CATL reported its battery brands passed China’s new national standard GB 38031-2025 for EV traction battery safety, raising the bar for pack-level safety and indirectly tightening vehicle power distribution (including busbars) to meet enhanced safety envelopes.
   
• Higher energy density also implies stricter safety compliance under extreme conditions (thermal runaway, short circuit), so busbar designs are being validated against expanded test regimes and more severe standards. This will augment the product adoption down the line.
   
• For instance, in December 2025, China’s Shenzhen Kuotan Semiconductor Technology announced plans to invest over USD 160 million to build the world’s largest 12-inch optical-grade silicon carbide (SiC) materials production base in Zhongkai district, Huizhou, Guangdong. This in turn will fulfill the SiC demand across EV busbar industry, thereby adding to market growth,
   
• SiC devices operate at higher switching frequencies and voltages, enabling smaller inverters with reduced cooling loads, but place stringent demands on busbar stray inductance and loop geometry. Laminated busbars with controlled impedance and short current paths are increasingly favored to minimize ringing and EMI while preserving switching efficiency.
   

Asia Pacific High Power Electric Vehicle Busbar Market Analysis

• Asia Pacific high power electric vehicle busbar industry was marked at USD 213.2 million, USD 291.8 million, and USD 384.3 million in the year 2023, 2024, and 2025 respectively. Regulatory alignment on charger methods, accuracy classes, and safety testing supports the scale up of high-power infrastructure and creates predictable design targets for vehicle high-voltage systems.
   
• For OEMs, clearer metrology and conformance expectations inform busbar cross-sections, insulation dimensioning, and fault management strategies. As standards evolve to segment DC chargers by tolerance classes and enable new billing models, vehicles must ensure precise, robust high-power connections, raising the importance of well-engineered busbars that maintain electrical performance across lifecycle variations.
   
• For instance, in October 2025, as per the government of Australia, the country EV charging infrastructure continues expansion in the year, with fast-charging locations reaching 1,272 sites nationwide and over 800 high-powered charging plugs added. This in turn has spurred the demand of high-power busbar across the country, thereby adding to market growth.
   
• Transit agencies are digitizing fleets (telemetry, predictive maintenance) and electrifying depots (multi-megawatt systems). High-power busbars inside buses must interface seamlessly with smarter power electronics and thermal management, supporting high duty cycles, regenerative peaks, and scheduled fast charges.
   
• On the grid side, integrated fleet charging solutions reduce cabling and space while elevating power density, indirectly changing the duty profile seen by on-vehicle busbars. The convergence of digital fleet management and heavy-duty electrification raises requirements for durability, monitoring access (e.g., busbar temperature sensing), and maintainability.
   
• For reference, in November 2025, South Korea government announced to boost subsidies for electric vehicles (EVs) by 20% next year as part of a package to help the country's auto industry weather risks caused by U.S. tariffs. This in turn will boost product deployment across EV manufacturing industry.
   
• Transport ministries in APAC are rolling out plans to increase electricity’s share in transport and expand high-power corridors. This multi year direction stimulates supplier investments in HV connectors, contactors, fuses, and busbars capable of sustained high loads, robust environmental sealing, and quick service modularity.
   
• For instance, in April 2025, China’s ministries outlined plans to integrate transport and energy sectors, targeting higher electricity share in transport and enhanced clean energy infrastructure by 2027 - 2035, a policy stance that underpins sustained growth of high-power vehicle systems and components, including busbars.
   
• Reforms that stabilize payments, aggregate demand, and guarantee long-term service windows reduce commercial risk for OEMs and suppliers. That, in turn, unlocks investment in advanced HV platforms with higher-power busbars, laminated designs, and improved insulation systems. Policy support for behind-the-meter upgrades ensures vehicles can actually utilize high-rate charging, making durable, serviceable busbar designs a priority.
   

• Based on material, the market is segmented into copper and aluminum. The copper high power EV busbar industry across the region held a market share of 69.8% in 2025 and will grow at a CAGR of 14.1% by 2035. Copper remains the preferred material for high-power EV busbars due to its superior electrical conductivity, excellent thermal performance, and reliability under high current loads.
   
• In Asia Pacific, where electric buses and heavy-duty EVs are scaling rapidly, copper busbars are critical for minimizing resistive losses and ensuring efficient power transfer in 800V and above architectures. OEMs and Tier-1 suppliers are increasingly adopting laminated copper busbars with advanced insulation coatings to meet stringent safety and space constraints.
   
• For instance, in January 2025, Tata Motors emphasized the integration of advanced high-voltage systems in its EV roadmap for India, highlighting the need for robust power distribution components to support fast-charging and extended range. Copper busbars remain central to these designs, ensuring compliance with BIS safety standards for high-voltage EV systems.
   
• Manufacturers are investing in advanced copper alloys and laminated designs to further reduce inductance and improve thermal dissipation. This trend is particularly strong in markets including China and India, where government-backed programs are accelerating high-power charging corridors for public transport electrification.
   
• Aluminum EV busbar industry will grow at a CAGR of 15.7% by 2035. Aluminum is gaining traction in regional EV busbar applications due to its lightweight properties and cost advantages over copper. For electric buses and large commercial vehicles, reducing overall weight is critical to improving energy efficiency and extending range.
   
• Aluminum busbars with surface treatments or cladding to enhance conductivity and corrosion resistance, are increasingly used in battery pack connections and auxiliary circuits. OEMs are also exploring hybrid busbar designs combining aluminum and copper to balance performance and cost. The recyclability of aluminum aligns with sustainability goals, making it attractive for manufacturers targeting green mobility mandates across APAC markets.
   
• For reference, in 2024, BYD partnered with Alcoa to develop an all-aluminum electric bus frame and components, reducing vehicle weight by over 1.2 tons and improving range by 10%. This innovation underscores the growing role of aluminum in structural and electrical systems for EV buses in China and Southeast Asia.
   
• OEMs are adopting aluminum busbars for cell-to-pack and cell-to-chassis configurations, leveraging their corrosion resistance and recyclability. Surface treatments such as tin or nickel plating are applied to improve contact reliability and reduce oxidation. This trend aligns with the region’s push for lightweight, energy-efficient EV platforms, particularly in countries like China and Japan, where urban transit systems demand high efficiency and durability.
   

• China dominated the Asia Pacific high power electric vehicle busbar market with around 95% share in 2025 and generated USD 365.9 million in revenue. China continues to lead global electrification, with aggressive targets for public transport and intercity fleets. The government’s 2025 roadmap emphasizes high-voltage architectures to enable ultra-fast charging and battery-swapping models for buses.
   
• This shift drives demand for laminated copper busbars with superior thermal and electrical performance, as well as advanced insulation systems to meet GB standards. The integration of digital monitoring and thermal sensors into busbar assemblies is becoming common to ensure compliance with evolving safety norms.
   
• For instance, in January 2025, China’s Ministry of Industry and Information Technology (MIIT) announced new guidelines to promote battery-swapping and high-voltage EV systems, alongside the rollout of GB 38031-2025 safety standards for traction batteries, reinforcing the need for robust busbar designs in high-power buses.
   
• India market will grow at a CAGR of 23% by 2035 owing to policy push for e-bus adoption and depot electrification. India’s electrification strategy for public transport is accelerating under central schemes like PM-eBus Sewa, which now includes structured payment security and depot electrification support.
   
• Busbar designs in India are trending toward copper for main HV circuits and aluminum for secondary circuits to balance cost and weight. Compliance with BIS standards for insulation and creepage distances is critical, and OEMs are integrating busbar assemblies with thermal sensors for predictive maintenance in harsh climatic conditions.
   
• For instance in November 2025, the Electricity (Amendment) Bill 2025 and BIS initiatives emphasize high-voltage safety compliance and infrastructure modernization, creating a regulatory environment that supports advanced busbar technologies for electric buses.
   
• South Korea high power electric vehicle busbar market will grow at a CAGR of 28% by 2035. The government’s focus on AC/DC hybrid distribution networks and MVDC technology indirectly impacts busbar specifications for heavy-duty EVs, requiring higher dielectric strength and fault-tolerant designs.
   
• OEMs are also preparing for V2G (Vehicle-to-Grid) integration, which demands busbars with enhanced thermal stability and bidirectional current handling. Laminated copper busbars with integrated sensing for real-time monitoring are gaining traction to meet these advanced operational requirements.
   
• For instance, in 2025, MOTIE announced nationwide V2G pilot programs and AC/DC hybrid grid development, signaling a strong push toward high-power EV systems and advanced busbar technologies for electric buses.
   
• Australia market will grow at a CAGR of 31% by 2035. Australia’s electrification strategy emphasizes lightweight, energy-efficient designs for long-range electric buses operating in urban and regional routes. OEMs and local body builders are adopting aluminum busbars for weight reduction, complemented by copper in critical HV circuits to maintain conductivity.
   
• For instance, in 2025, ARENA-supported projects and OEM collaborations in Australia are advancing high-power charging and lightweight EV bus designs, with Yutong and local partners introducing electric chassis optimized for aluminum-intensive architectures.
   

Asia Pacific High Power Electric Vehicle Busbar Market Share

• The top 5 companies in Asia Pacific high power electric vehicle busbar industry including Mersen SA, TE Connectivity, Amphenol Corporation, EAE Group, Schneider Electric, collectively accounted for over 25% of market share in 2025. The nature of busbar market is highly fragmented, thereby catering to a competitive landscape, especially across the developing economies across the region.
   
• Several regional players, including RHI Electric, Bridgold Copper Tech, Intercable Automotive Solutions, and Connor Manufacturing Services, hold a dominant position in the APAC high-power EV busbar market. These companies maintain a strong presence in China and other Southeast Asian countries, creating intense competition for global players operating in the region.
   

Asia Pacific High Power Electric Vehicle Busbar Market Companies

Major players operating in the Asia Pacific high power electric vehicle busbar industry are:

• Amphenol Corporation
• Brar Elettromeccanica SpA
• Connor Manufacturing Services
• EAE Group
• EG Electronics
• EMS Group
• Infineon Technologies AG
• Intercable Automotive Solutions
• Legrand
• Littelfuse, Inc.
• Mersen SA
• Mitsubishi Electric Corporation
• RHI Electric (Zhejiang RHI)
• Rogers Corporation
• Schneider Electric
• Siemens
• TE Connectivity
• Weidmüller Interface GmbH & Co. KG
• Bridgold Copper Tech
• Zhejiang Zhongyan New Energy
   
• Amphenol Corporation, headquartered in Wallingford, Connecticut, USA, is a global leader in interconnect systems, sensors, and antennas serving diverse markets such as automotive, aerospace, industrial, and mobile networks. In 2024, the company reported USD 15.2 billion in sales, driven by strong organic growth and strategic acquisitions. With operations in over 70 countries, Amphenol continues to invest in high-technology solutions for electrification and connectivity.
   
• Mersen SA, headquartered in Paris, France, is a global expert in electrical power and advanced materials for high-tech industries. In 2024, Mersen achieved USD 1.4 billion in sales, driven by growth in transportation and process industries. The company specializes in busbars, fuses, and thermal management solutions for EVs and renewable energy systems. With a strong presence in Asia Pacific and over 50 industrial sites worldwide, the company continues to invest in sustainable technologies and advanced electrical components.
   
• Legrand, headquartered in Limoges, France, is a global specialist in electrical and digital building infrastructures. In 2024, Legrand posted over USD 10 billion in revenue, supported by growth in datacenter solutions and energy-efficient systems. Operating in over 90 countries, Legrand continues to expand through acquisitions and innovation in smart energy and connectivity solutions.
   

Asia Pacific High Power Electric Vehicle Busbar Industry News

• In December 2025, Mersen showcased its latest laminated busbar solutions for EVs at EnerGaïa Renewable Energy Forum, emphasizing improved thermal management and compact design for Asia-Pacific EV platforms. This in turn will influence the product adoption across EV’s down the line.
   
• In October 2025, Amphenol participated in E-Mobility Asia (EMA) in Kuala Lumpur, Malaysia, presenting flexible and ultra-low inductance busbar solutions for EV battery systems and charging infrastructure.
   
• In May 2025, TE Connectivity awarded TTI Asia the Asia Product Expansion Growth Award for driving a 35% year-over-year SKU expansion across Asia-Pacific, reinforcing TE’s EV connectivity portfolio reach.
   
• In April 2025, Zhejiang RHI Electric presented EV battery copper busbars, flexible connectors, and integrated aluminum busbars at the Global Sources Consumer Electronics Show in Hong Kong.
   

This Asia Pacific high power electric vehicle busbar market research report includes in-depth coverage of the industry with estimates & forecast in terms of revenue (USD Million) from 2022 to 2035, for the following segments:

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Market, By Material

• Copper
• Aluminum

The above information has been provided for the following countries:

• China
• India
• Japan
• South Korea
• Australia