EV Wire Harness

UKB is a leading manufacturer and supplier of custom-engineered EV Wire Harnesses, which serve as the critical "nervous system" for any electric vehicle.

UKB Electronics is a specialized Indian manufacturer of custom-engineered EV Wire Harnesses, which serve as the critical “nervous system” for any electric vehicle. These complex assemblies connect all high-voltage and low-voltage components, ensuring reliable power distribution and data communication. As a leading “Make in India” automotive partner, we provide EV OEMs with a domestic, high-quality solution for one of the most intricate components in an electric vehicle, supporting the localization of the entire EV supply chain.

Product Types & Anatomy

An EV wire harness is a precisely organized system of wires, terminals, and connectors designed for a specific vehicle architecture. We manufacture the full range of harnesses required for an EV:

High-Voltage (HV) Harnesses: Robust, typically orange-colored, and shielded cable assemblies that carry high-voltage DC power between the battery pack, inverter, and electric motor.
Low-Voltage (LV) Harnesses: Complex looms that connect and power all the vehicle’s 12V auxiliary systems, including lighting, infotainment, sensors, and control units.
Data & Communication Harnesses: Specialized harnesses for carrying data across vehicle networks like CAN bus, connecting various ECUs and the Battery Management System (BMS).

Key Features & Customisation Options

Custom Engineering: Every harness is custom-designed in collaboration with the OEM to fit the specific vehicle layout and requirements.
High-Voltage Capability: Use of specialized HV cables, connectors, and High-Voltage Interlock Loop (HVIL) safety circuits.
Automotive-Grade Components: Utilization of wires, terminals, and connectors that meet stringent automotive standards like ISO 6722.
Automated Production: Use of automated cutting, stripping, crimping, and ultrasonic welding for high quality and consistency.
Durability: Designed to withstand extreme temperatures, constant vibration, and exposure to automotive fluids.

Integrated Manufacturing Capabilities

Our ability to deliver world-class EV harnesses is built on our deep vertical integration:

Automotive Wire & Cable Manufacturing: We manufacture our own automotive-grade thin-wall wires in-house, giving us direct control over the quality of the most fundamental part of the harness.
Wire Harness Assembly: Our dedicated, large-scale assembly lines feature automated cutting, crimping, and ultrasonic welding equipment.
Plastic Injection Moulding: We mould our own custom connectors, clips, clamps, and protective conduits, ensuring a perfect fit within the vehicle.
In-house Testing & Validation: Every harness is checked on our custom-built electronic test boards, which perform a 100% test for continuity, polarity, and other critical parameters.

markets supported

Applications for EV Wire Harness

Electric 3-Wheelers

Robust harnesses designed for heavy commercial use in e-rickshaws and cargo vehicles.

Electric Cars & SUVs (4W)

Highly complex, full-vehicle harness systems, including both HV powertrain and LV body harnesses.

Electric Buses & Commercial Vehicles

Heavy-duty, large-scale harnesses for public transport and logistics vehicles.

EV Powertrain & Battery Pack Manufacturers

Supplying integrated harnesses for battery and motor systems.

Electric 2-Wheelers

Compact and durable harnesses for electric scooters and motorcycles.

Understanding the Essentials

Why Choose UKB Electronics?

Choosing UKB Electronics means choosing a deeply integrated “Make in India” partner for your EV’s most complex wiring systems. Our unique ability to manufacture the automotive wire and assemble the final harness under one roof provides unparalleled quality control and supply chain security. Our expertise in automotive standards and our rigorous automated testing ensure a zero-defect harness that is critical for the safety and reliability of your vehicle. Partner with us to localize your EV supply chain and accelerate your production in India.