世界の自動車用高電圧ワイヤーハーネス市場 – 2030年

• 英文タイトル：High-Voltage Automotive Wire Harness Market - Global Forecast to 2030

• レポートコード：360iR993TV429 • 出版社/出版日：360iResearch / 2025年5月 • レポート形態：英語、PDF、約130ページ • 納品方法：Eメール（納期：2日） • 産業分類：自動車

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レポート概要

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高電圧自動車用ワイヤーハーネス市場は、自動車業界の急速な電動化やコネクテッド化の進展を背景に大きな変革期を迎えている。OEMやティア1サプライヤーは、電気自動車（BEV）の普及、先進運転支援システム（ADAS）、車車間通信（V2X）などの技術を支えるため、信頼性の高い電力・データ伝送手段として高電圧ハーネスに注目している。近年では800V超の超高電圧アーキテクチャが高性能EVを中心に採用され始めており、従来の低電圧仕様からの転換が進んでいる。また、複数の通信機能を一体化した光ファイバーやシールドツイストペアなども搭載され、配線構造も複雑化している。 環境規制や安全基準の強化に伴い、軽量で放熱性にも優れるアルミ合金など新素材の採用が加速しており、ISO 16949やCRG規格など国際基準への対応も必須になっている。加えて、サプライチェーンの再構築も進行しており、OEMは製造拠点をアメリカ、ヨーロッパ、アジア太平洋などの地域に分散し、モジュールの現地生産を推進している。これに対応する形で、ティア1企業は自動化押出、コネクタ自社製造など製造能力の強化に投資を進めている。 2025年に発効される米国の新関税も市場に大きな影響を与える。銅やアルミの原材料に最大10%、完成品や部品に5〜15%の関税が課され、コスト構造に変化が生じている。そのため、メーカーは価格転嫁交渉や関税免除国からの調達、設計の最適化、材料の削減などでコスト対応を図っている。関税リスクを見据え、OEMとの長期契約や国内製造の拡大も進められており、柔軟なサプライ体制と設計力を持つ企業が競争優位を獲得しやすい。 市場セグメント分析では、導体素材として依然として銅が主流だが、軽量化のニーズからアルミの成長が顕著である。車種別ではBEVが最大の成長ドライバーで、PHEVも一定のシェアを維持している。電圧別には高電圧が主力だが、次世代EVやeトラックでは超高電圧需要も拡大中。電流タイプでは、駆動用は直流（DC）が中心で、交流（AC）は充電器やモーター制御に使われる。用途別では、バッテリー接続・充電ポート用ハーネスが伸びており、エンジン・シャーシ向けはハイブリッド車で引き続き需要がある。安全・セキュリティ系、スターター・オルタネーター系も一定の需要を維持している。 部品別ではコネクタが最大の価値構成要素で、ヒューズ、端子、配線などが続く。顧客別ではOEMが主体だが、アフターマーケットでも商用車を中心に交換やレトロフィット需要が見込まれる。絶縁材では高耐熱性のXLPE、耐摩耗性の炭素ブラック入りPVC、安価なPPなどが用途に応じて使い分けられている。設計では、従来型の分岐方式から一体化バス構造への移行が進んでいる。製造面では、押出成形や絶縁加工の自動化、コネクタ装着の機械化が進展。品質規格ではISO 16949を中心に、ISO 9001やCRG仕様への準拠が求められている。 主要企業には、矢崎総業、住友電工、デンソー系のSMRP、LEONI、Lear、TE Connectivityなどが含まれ、製造拠点の分散、軽量素材の導入、設計統合などで競争力を強化している。市場は今後も高度化・高機能化が進む中、柔軟な設計力・製造対応・国際調達戦略を持つ企業が勝ち残ると見られている。

Introduction to the High-Voltage Automotive Wire Harness Market Overview
The high-voltage automotive wire harness market underpins the rapid transformation of the global automotive industry. As original equipment manufacturers and tier-one suppliers pursue electrification, advanced driver assistance systems and connected vehicle architectures, the harness serves as the neurological system, transmitting power and data reliably across increasingly complex platforms. Rising demand for battery electric vehicles (BEVs), stringent emissions regulations and safety standards have catalyzed a wave of innovation in conductor materials, insulation technologies and integrated system designs. Meanwhile, global supply chain realignment, regional trade policies and quality standard compliance shape competitive strategies and investment priorities. This executive summary distills key structural shifts, tariff implications, segmentation dynamics, regional trends and leading company strategies to equip decision-makers with actionable intelligence. Whether you are steering product development, sourcing strategy or go-to-market planning, these insights will guide your next moves in a market defined by rapid technological progress and evolving regulatory landscapes.

Transformative Shifts Reshaping the Wire Harness Landscape
The market landscape for high-voltage wire harnesses is undergoing transformative shifts driven by multiple converging forces. First, the acceleration of vehicle electrification is redefining harness design criteria; traditional low-voltage components are giving way to ultra-high-voltage architectures above 800 V to support fast charging and extended range in premium BEVs. At the same time, advanced driver assistance and vehicle-to-everything (V2X) connectivity are driving demand for multi-core data transmission within the harness assembly, prompting suppliers to integrate fiber optics and shielded twisted pairs.
Regulatory pressure on emissions and battery safety is intensifying material innovation: aluminum alloys are emerging as lightweight alternatives to copper to optimize vehicle mass and thermal management. Concurrently, quality standard compliance-particularly under ISO 16949 and CRG specifications-is raising the bar for testing, traceability and supplier certification. Moreover, supply chain resilience initiatives have led OEMs to regionalize production, shifting modules closer to assembly plants in the Americas, Europe and Asia-Pacific. As a result, tier-one players are investing in digital manufacturing, automated extrusion and in-house connector attachment capabilities. Together, these dynamics are redefining competitive differentiation, compelling stakeholders to adapt product roadmaps and operational footprints accordingly.

Cumulative Impact of United States Tariffs Effective 2025
The implementation of new United States tariffs in 2025 introduces a critical inflection point for harness suppliers and OEMs reliant on imported conductors and components. Additional duties under Section 301 have raised the effective import cost of raw copper and aluminum wires by up to 10%, while supplementary tariffs on finished harness assemblies and connector subcomponents range between 5% and 15%. This escalation is prompting cost pass-through negotiations and accelerating onshore manufacturing expansion to maintain margin targets.
Consequently, supply agreements are being renegotiated to incorporate tariff-adjusted pricing clauses, and some stakeholders are re-sourcing from duty-exempt countries within trade alliances. At the product level, cost pressures are driving a renewed focus on material optimization-reducing conductor diameters where possible, adopting hybrid metal alloys and streamlining harness architectures through integrated bus systems. Furthermore, suppliers are strengthening bilateral partnerships with domestic OEMs to secure long-term contracts that include tariff mitigation provisions. In this context, suppliers who can demonstrate agile sourcing, lean designs and rigorous compliance protocols are poised to outperform peers in a challenging cost environment.

Key Segmentation Insights Across Eleven Dimensions
Insight into the market’s structural layers reveals nuanced growth drivers across diverse dimensions. Regarding material type, copper retains its dominant position due to superior conductivity and maturity in manufacturing processes, yet the aluminum segment is recording double-digit growth as electrification and lightweighting strategies gain momentum. By vehicle type, the electric vehicle category is emerging as the fastest-expanding segment, with battery electric vehicles accounting for the majority of harness content, while plug-in hybrids sustain incremental growth; traditional passenger cars and commercial vehicles remain significant but mature markets, with light commercial vehicles slightly outpacing heavy trucks due to urban delivery electrification pilots. Examining voltage type, the high-voltage segment constitutes the core market, but ultra-high-voltage harnesses are capturing premium applications in next-generation BEVs and commercial e-trucks. From a current type perspective, DC harnesses dominate traction power circuits, whereas AC harnesses are crucial for motor control and onboard chargers. Application-wise, battery connector wires and charging port wiring are growth hotspots, while engine and chassis wiring continues to deliver steady revenues in hybrid platforms; safety and security system harnesses are benefitting from expanded sensor arrays, and starter and alternator wiring remains essential for conventional powertrains.
Component type segmentation shows connectors leading in value share, followed by fuse assemblies, terminal blocks and bare wires. In the end-user landscape, OEM demand drives the majority of volume, but the aftermarket channel presents opportunistic niches in replacement and retrofitting, particularly for commercial fleets. Insulation material trends indicate that cross-linked polyethylene (XLPE) is gaining favor for high-temperature tolerance, carbon-black-infused PVC provides enhanced abrasion resistance, and polypropylene retains cost-effective applications. Design type analysis highlights the rise of integrated wiring solutions and bus architectures over traditional branching systems, streamlining assembly and weight. Manufacturing process insights reflect a shift toward automated extrusion and insulation application, with connector attachment becoming increasingly mechanized to ensure consistency. Lastly, quality standard compliance underscores the primacy of ISO 16949 certification among leading suppliers, complemented by ISO 9001 and specialized CRG specifications for safety-critical applications.
This comprehensive research report categorizes the High-Voltage Automotive Wire Harness market into clearly defined segments, providing a detailed analysis of emerging trends and precise revenue forecasts to support

Market Segmentation & Coverage

1. Material Type
 Aluminum
 Copper
2. Vehicle Type
 Commercial Vehicles
 Heavy Commercial Vehicles
 Light Commercial Vehicles
 Electric Vehicles
1. Battery Electric Vehicles
2. Plug-In Hybrid Electric Vehicles
 Passenger Cars
3. Voltage Type
 High Voltage
 Low Voltage
 Medium Voltage
 Ultra-High Voltage
4. Current Type
 AC (Alternating Current)
 DC (Direct Current)
5. Application
 Battery Connector Wires
 Charging Port Wiring
 Engine And Chassis Wiring
 Safety And Security Systems
 Starter And Alternator Wiring
6. Component Type
 Connectors
 Fuse
 Terminals
 Wires
7. End-User
 Aftermarket
 OEM (Original Equipment Manufacturer)
8. Insulation Material
 PP
 PVC
 XLPE
9. Design Type
 Branching Systems
 Bus Systems
 Integrated Wiring
10. Manufacturing Process
 Connector Attachment
 Extrusion
 Insulation Application
 Wire Twisting
11. Quality Standard Compliance
 CRG Specification
 ISO 16949
 ISO 9001

Competitive Analysis & Coverage

Aptiv PLC
Coroplast Fritz Müller GmbH & Co. KG
Delphi Technologies
Furukawa Electric Co., Ltd.
Kromberg & Schubert
Kyungshin Corporation
Lear Corporation
LEONI AG
LS Cable & System
Motherson Group
Nexans S.A.
PKC Group
Samvardhana Motherson Automotive Systems Group BV (SMRP BV)
Sumitomo Electric Industries, Ltd.
TE Connectivity Ltd.
THB Group
Yazaki Corporation

レポート目次

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1. Preface
1. Objectives of the Study
2. Market Segmentation & Coverage
3. Years Considered for the Study
4. Currency & Pricing
5. Language
6. Stakeholders
2. Research Methodology
1. Define: Research Objective
2. Determine: Research Design
3. Prepare: Research Instrument
4. Collect: Data Source
5. Analyze: Data Interpretation
6. Formulate: Data Verification
7. Publish: Research Report
8. Repeat: Report Update
3. Executive Summary
4. Market Overview
1. Introduction
2. Market Sizing & Forecasting
5. Market Dynamics
6. Market Insights
1. Porter’s Five Forces Analysis
2. PESTLE Analysis
7. Cumulative Impact of United States Tariffs 2025
8. High-Voltage Automotive Wire Harness Market, by Material Type
1. Introduction
2. Aluminum
3. Copper
9. High-Voltage Automotive Wire Harness Market, by Vehicle Type
1. Introduction
2. Commercial Vehicles
1. Heavy Commercial Vehicles
2. Light Commercial Vehicles
3. Electric Vehicles
1. Battery Electric Vehicles
2. Plug-In Hybrid Electric Vehicles
4. Passenger Cars
10. High-Voltage Automotive Wire Harness Market, by Voltage Type
1. Introduction
2. High Voltage
3. Low Voltage
4. Medium Voltage
5. Ultra-High Voltage
11. High-Voltage Automotive Wire Harness Market, by Current Type
1. Introduction
2. AC (Alternating Current)
3. DC (Direct Current)
12. High-Voltage Automotive Wire Harness Market, by Application
1. Introduction
2. Battery Connector Wires
3. Charging Port Wiring
4. Engine And Chassis Wiring
5. Safety And Security Systems
6. Starter And Alternator Wiring
13. High-Voltage Automotive Wire Harness Market, by Component Type
1. Introduction
2. Connectors
3. Fuse
4. Terminals
5. Wires
14. High-Voltage Automotive Wire Harness Market, by End-User
1. Introduction
2. Aftermarket
3. OEM (Original Equipment Manufacturer)
15. High-Voltage Automotive Wire Harness Market, by Insulation Material
1. Introduction
2. PP
3. PVC
4. XLPE
16. High-Voltage Automotive Wire Harness Market, by Design Type
1. Introduction
2. Branching Systems
3. Bus Systems
4. Integrated Wiring
17. High-Voltage Automotive Wire Harness Market, by Manufacturing Process
1. Introduction
2. Connector Attachment
3. Extrusion
4. Insulation Application
5. Wire Twisting
18. High-Voltage Automotive Wire Harness Market, by Quality Standard Compliance
1. Introduction
2. CRG Specification
3. ISO 16949
4. ISO 9001
19. Americas High-Voltage Automotive Wire Harness Market
1. Introduction
2. Argentina
3. Brazil
4. Canada
5. Mexico
6. United States
20. Asia-Pacific High-Voltage Automotive Wire Harness Market
1. Introduction
2. Australia
3. China
4. India
5. Indonesia
6. Japan
7. Malaysia
8. Philippines
9. Singapore
10. South Korea
11. Taiwan
12. Thailand
13. Vietnam
21. Europe, Middle East & Africa High-Voltage Automotive Wire Harness Market
1. Introduction
2. Denmark
3. Egypt
4. Finland
5. France
6. Germany
7. Israel
8. Italy
9. Netherlands
10. Nigeria
11. Norway
12. Poland
13. Qatar
14. Russia
15. Saudi Arabia
16. South Africa
17. Spain
18. Sweden
19. Switzerland
20. Turkey
21. United Arab Emirates
22. United Kingdom
22. Competitive Landscape
1. Market Share Analysis, 2024
2. FPNV Positioning Matrix, 2024
3. Competitive Analysis
1. Aptiv PLC
2. Coroplast Fritz Müller GmbH & Co. KG
3. Delphi Technologies
4. Furukawa Electric Co., Ltd.
5. Kromberg & Schubert
6. Kyungshin Corporation
7. Lear Corporation
8. LEONI AG
9. LS Cable & System
10. Motherson Group
11. Nexans S.A.
12. PKC Group
13. Samvardhana Motherson Automotive Systems Group BV (SMRP BV)
14. Sumitomo Electric Industries, Ltd.
15. TE Connectivity Ltd.
16. THB Group
17. Yazaki Corporation
23. ResearchAI
24. ResearchStatistics
25. ResearchContacts
26. ResearchArticles
27. Appendix
28. List of Figures [Total: 38]
1. HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET MULTI-CURRENCY
2. HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET MULTI-LANGUAGE
3. HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET RESEARCH PROCESS
4. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, 2018-2030 (USD MILLION)
5. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY REGION, 2024 VS 2025 VS 2030 (USD MILLION)
6. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY COUNTRY, 2024 VS 2025 VS 2030 (USD MILLION)
7. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY MATERIAL TYPE, 2024 VS 2030 (%)
8. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY MATERIAL TYPE, 2024 VS 2025 VS 2030 (USD MILLION)
9. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY VEHICLE TYPE, 2024 VS 2030 (%)
10. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY VEHICLE TYPE, 2024 VS 2025 VS 2030 (USD MILLION)
11. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY VOLTAGE TYPE, 2024 VS 2030 (%)
12. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY VOLTAGE TYPE, 2024 VS 2025 VS 2030 (USD MILLION)
13. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY CURRENT TYPE, 2024 VS 2030 (%)
14. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY CURRENT TYPE, 2024 VS 2025 VS 2030 (USD MILLION)
15. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY APPLICATION, 2024 VS 2030 (%)
16. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY APPLICATION, 2024 VS 2025 VS 2030 (USD MILLION)
17. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY COMPONENT TYPE, 2024 VS 2030 (%)
18. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY COMPONENT TYPE, 2024 VS 2025 VS 2030 (USD MILLION)
19. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY END-USER, 2024 VS 2030 (%)
20. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY END-USER, 2024 VS 2025 VS 2030 (USD MILLION)
21. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY INSULATION MATERIAL, 2024 VS 2030 (%)
22. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY INSULATION MATERIAL, 2024 VS 2025 VS 2030 (USD MILLION)
23. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY DESIGN TYPE, 2024 VS 2030 (%)
24. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY DESIGN TYPE, 2024 VS 2025 VS 2030 (USD MILLION)
25. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY MANUFACTURING PROCESS, 2024 VS 2030 (%)
26. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY MANUFACTURING PROCESS, 2024 VS 2025 VS 2030 (USD MILLION)
27. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY QUALITY STANDARD COMPLIANCE, 2024 VS 2030 (%)
28. GLOBAL HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY QUALITY STANDARD COMPLIANCE, 2024 VS 2025 VS 2030 (USD MILLION)
29. AMERICAS HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY COUNTRY, 2024 VS 2030 (%)
30. AMERICAS HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY COUNTRY, 2024 VS 2025 VS 2030 (USD MILLION)
31. UNITED STATES HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY STATE, 2024 VS 2030 (%)
32. UNITED STATES HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY STATE, 2024 VS 2025 VS 2030 (USD MILLION)
33. ASIA-PACIFIC HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY COUNTRY, 2024 VS 2030 (%)
34. ASIA-PACIFIC HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY COUNTRY, 2024 VS 2025 VS 2030 (USD MILLION)
35. EUROPE, MIDDLE EAST & AFRICA HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY COUNTRY, 2024 VS 2030 (%)
36. EUROPE, MIDDLE EAST & AFRICA HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SIZE, BY COUNTRY, 2024 VS 2025 VS 2030 (USD MILLION)
37. HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET SHARE, BY KEY PLAYER, 2024
38. HIGH-VOLTAGE AUTOMOTIVE WIRE HARNESS MARKET, FPNV POSITIONING MATRIX, 2024

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