The High-Voltage Harness Manufacturer!

 

Ningbo MingXi Industry and Trade Co., Ltd, established in 2014, is a leading provider of integrated electronic manufacturing services. Formerly known as Ningbo MingTeHan Electronics Co., Ltd, the company specializes in PCB production and R&D, SMT assembly, DIP assembly, testing, inspection, aging, full product assembly, and wire harness manufacturing.


We specialize in the production of a wide range of electronics, including single side rigid PCB, double sided rigid PCB, multilayer rigid PCB, high frequency rigid PCB, smartphones motherboard PCBA, smart speaker PCBA, standard wire harnesses, gang smart touch Switch, and more.

 
  • High-Voltage Wiring Harness
    High-voltage harnesses ensure stable and secure power transmission through their high voltage capacity, high protection level, and anti-electromagnetic interference design. They are not only...
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Why choose us

Rich Experience

Our core team has over 10 years of experience in electronics manufacturing, enabling us to quickly respond to customer needs and provide professional solutions.

Quality Assurance

We adhere to strict international quality standards (such as ISO 9001 and IPC-A-610) to ensure that every product meets the highest customer expectations.

Comprehensive Service Support

From product development, design optimization (DFM), prototyping to mass production, we provide one-stop services to help customers reduce time-to-market.

 

High-Voltage Wiring Harness

 

Features

High Voltage Capacity Safely transmits high voltage, ensuring stable and secure power transmission.


High Protection Level Waterproof, dustproof, and corrosion-resistant, suitable for complex environments.


Anti-Electromagnetic Interference Shielding design reduces electromagnetic interference, ensuring signal integrity.


High Heat Resistance Capable of withstanding heat generated by the Joule effect during high-current transmission.


Durability Resistant to high temperatures, weather, corrosion, vibration, and wear.

 

Key Safety Standards for HV Wiring Harnesses

 

Standard

Description

ISO 26262

Functional safety standard for road vehicles.

IEC 62196

Standards for connectors and charging infrastructure.

ISO 6722

Electrical insulation standards for road vehicles.

 

 

Applications

Automotive Industry Connects high-voltage battery packs, inverters, motors, and other key components to ensure stable and secure power transmission.


Industrial Equipment Used for power supply to motors, sensors, and other devices to ensure stable operation.


Aerospace Ensures the stability and reliability of electrical systems to avoid serious consequences due to failures.


Communication Equipment Used for transmitting high-current signals to ensure communication quality and stability.


Medical Equipment Such as X-ray machines and MRI scanners, ensuring normal operation.

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High wire harness production

 

The left side of the process card shows the technical requirements, and all references are subject to the technical requirements; the right side shows the precautions: keep the end faces flush when the terminals are crimped, keep the labels on the same plane when heat shrinking, the key dimensions of the shielding layer, Hole position restrictions for special connectors, etc.


Select the specifications of the required materials in advance. Wire diameter and length: High-voltage wires range from 25mm2 to 125mm2. They are selected according to their functions. For example, controllers and BMS need to choose large square wires. For batteries, small square wires need to be selected. The length needs to be adjusted according to the margin of the plug-in. Stripping and stripping of wires: Crimping of wires requires stripping off a certain length of copper wire crimping terminals. Select the appropriate stripping head according to the terminal type. For example, SC70-8 needs to be stripped of 18mm; the length and size of the lower tube: The diameter of the pipe is selected according to the specifications of the wire. The size of the heat shrink tube: The heat shrink tube is selected according to the specifications of the wire. Print label and location: identify the unified font and required auxiliary materials.


The assembly sequence of special connectors: generally includes dust cover, plug housing parts, jack parts, elbow accessories, shielding rings, sealing parts, compression nuts, etc.; assemble and crimp in sequence. How to deal with the shielding layer: Generally, there will be a shielding ring inside the connector. After wrapping it with conductive tape, it is connected to the shielding ring and connected to the shell, or the lead wire is connected to the ground. 

 

 
Customization Process
 
01/

Communication Needs
Custom colors can be tailored to meet specific customer requirements. Please provide your customization concepts and detailed specifications for further discussion.

02/

Production Execution
Following the confirmed design, we implement meticulous production processes with strict quality control at every stage, ensuring consistency and precision before proceeding to mass production.

03/

Quality Inspection and Packaging
Upon completion of the product, a comprehensive three-stage inspection process is conducted to ensure quality standards are met. Subsequently, the products are packaged in accordance with your specified requirements.

04/

Delivery Assurance
We ensure timely delivery of the products within the agreed timeframe as per the contract terms.

 

Packaging & Shipping

 

 

  • 5000-10000 pcs per carton.
  • Built-in waterproof plastic bag.
  • Normal Carton size is 45*30*30CM
  • Carton material is K=K(Standard Export Carton)
productcate-703-539
productcate-703-539

 

FAQ

Q: Can I get samples?

A: We can provide samples of the existing items with freight collected. As for your customized products, our engineer team will make out a technical drawing for your confirmation according to your request before mass production.

Q: What's the lead time?

A: It depends on the quantity, usually the lead time is 10-45 days after receiving the balance payment.

Q: What are the terms of payment?

A: We accept 50% T/T in advance and balance payment received before shipment. We can also try more payment terms with you in the future order.

Q: Do you have any certifications?

A: All cable assemblies conform to ISO 9001:2015 and ISO 13485:2016 standards, making them suitable for use in healthcare applications requiring biocompatibility and safety.

Q: What shall we do if we don't have drawings?

A: Please send your samples to our factory, and then we will copy or provide you better solutions. The best way is to send pictures and drafts with dimensions, CAD or 3D files to us for confirmation before placing your order.

As one of the leading high-voltage harness manufacturers and suppliers in China, we warmly welcome you to buy bulk high-voltage harness made in China here from our factory. For customized service, contact us now.

Send Inquiry

Applications

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Aerospace Field
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Automatic Electronics
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Communication Equipment
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Consumer Electronics
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Industrial Control
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Medical Devices
Contact Us If Have Any Question

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