40A 3 Pin HV Plastic Connector | EV Power Connector for OBC, DC-DC, Electric Compressor

Home

Solutions

High Voltage Wiring Harness Solution

ESS Battery Connection Solutions

EV High Voltage Interconnection Solution

EV Charging Solution

High Voltage Wiring Harness Solution

Guchen Electronics is a one-stop source for electric vehicle high voltage cable harness assembly, low voltage cable harness assembly and electrical connectors.

ESS Battery Connection Solutions

We offer customized connection solutions for all your BESS requirements. From front to rear connection, we have the right solution for you. Besides that, we have a team of highly trained engineers and technicians who can solve any connection issue that you may have.

EV High Voltage Interconnection Solution

High Voltage Interconnection Solutions are the connectors used to connect the high voltage components in Electric Vehicles. Guchen offers a wide range of High Voltage Connectors for EV, HEV and PHEV applications.

EV Charging Solution

Guchen Electronics offers OEM/ODM, customization services, and has expertise in providing charging solutions for both commercial and residential customers.

Products

EV HV Connectors

EV HV Wiring Harness

EV HV Cable

EV Charging Connectors (Socket & Plug)

Energy Storage Connector

Liquid Cooling Quick Disconnects

EV HV Connectors

Electric vehicle connectors supplied by Guchen Electronics are with excellent shielding, fast safe easy assembling, wide wire section options, compact design and multi positions connectors options. In order to meet different requirements, we provide our customers with various types of quality HV connectors, widely used in the fields of automotive electronics.

GVA630 Series 40A 3-Pin HV Plastic Connector

MSD-H High Voltage Manual Service Disconnect (630A, 1000V)

GVA280 Series 30A 2-Pin High Voltage Plastic Connector

SH3 Series 2-Pole 350A High Current Plastic Connector

EV HV Wiring Harness

Guchen Electronics is a professional manufacturer of HV assembled wiring harnesses for electric passenger cars and commercial vehicles. We always pay attention to the quality of HV cables & connectors, and provide global EV manufacturers with high quality products and excellent service.

Electric Compressor HV Wiring Harness

BAT high voltage assembled wiring harness

EV Battery High Voltage Wire Harness

MCU High Voltage Wire Harness Assembly

PTC&AC High Voltage Wire Harness

EV HV Cable

We have a wide range of high voltage cables for passenger car and commercial vehicles like bus, truck, coach etc. Guchen EV HV cables can handle high currents and high voltage. They are high temperature resistant, soft, and with variable options (2.5mm²~120mm² sizes, shielded or unshielded, copper or aluminum cable options). Guchen cables are full customizable to meet different EV requirements.

XLPE/XLPO-insulated aluminum core HV cable

Shielded High Voltage XLPO/XLPE-Insulated Aluminum Cable

silicone rubber high voltage copper cable

Shielded High Voltage Silicone Rubber Copper Cable

Shielded High Voltage XLPE/XLPO Multi-Core Copper Cable

shielded XLPE high voltage single-core cable

Shielded High Voltage XLPE/XLPO Single-Core Copper Cable

EV Charging Connectors (Socket & Plug)

We can offer premium quality type 2 charging gun, CCS2 DC charging plug, CCS2 charging socket vehicle inlet etc. Guchen EV Charging Connectors are built with precision and reliability in mind. All of our EV charging plugs and sockets are made from high-quality materials engineered to withstand daily use in public charging stations. We've rigorously tested them to meet the latest standards for safety, charging speed and reliability. Guchen Electronic aims to be a leading supplier of charging solutions as electric vehicles become more prevalent worldwide. Please contact us to learn more about our EV charging connectors.

CCS2 DC EV Charging Plug/Gun

CCS2 EV DC Charging Socket (Vehicle Inlet)

Energy Storage Connector

Guchen Electronics is specialized in designing and manufacturing of electric vehicle high voltage connectors (with various specifications and features), HV wire harness & cables, EV charging equipment, and HV connectors for Battery Energy Storage System (BESS).

MSD-C1 Series 350A ESS MSD Connector

GCS12 12mm 250A-350A Battery High Voltage Connector

GCS08 8mm 150A-250A Energy Storage Connector

GCS2 300A/350A Battery Copper Bus Bar Connector

Liquid Cooling Quick Disconnects

Guchen Electronics Liquid Cooling Quick Disconnects – Efficient, Reliable, and Future-Ready! Optimize your data center cooling with Guchen Electronics’ Liquid Cooling Quick Disconnects. Designed for high-performance thermal management, our connectors ensure rapid, leak-free connections, effortless maintenance, and superior durability under extreme conditions. Supporting high flow rates and a variety of cooling fluids, they are engineered for seamless integration with liquid-cooled racks, servers, and high-density computing systems.

MQD/MQDB Coupling (NVIDIA Standard)

UQD Connector | Universal Quick Disconnect Coupling

UQDB Series Blind-Mate Floating Coupling

Blog

Company Blog

Guchen Electronics is a professional China factory for electric vehicle connectors, high voltage cable assemblies, EV charging equipment and energy storage connectors. We provide all kinds of products with high quality and competitive price.

Industry Blog

Here you can learn about the global electric vehicle industry, news, reviews and analysis about electric vehicle industry trends, technologies and manufacturers.

Exhibitions

Guchen Electronics attends various exhibitions yearly, including Electric Vehicle Expo which has become a world-famous event. As one of the best EV HV connector manufacturers, Guchen Electronics has attracted hundreds of suppliers and buyers from all over the world during the exhibitions.

Technical Support

Guchen provides one-stop technical supports relating to HV connectors, cable assemblies, and energy storage connectors. We have strong expertise in different technologies not only limited to power electronics. We have provided the standard level of services for our customers during the whole process from initial product design, building to mass production and routine maintenance.

About Us

About us

Quality Assurance

Service

About us

Guchen Electronics is a professional manufacturer and custom solution provider of electric vehicle connection system and ESS battery connection system. We are located in Shenzhen, China. Our international business covers more than 70 countries around the world. With many years' experience in the field, we can provide OEM products with high quality, good price and on time delivery. Welcome to contact us if you are interested in any of our products.

Quality Assurance

Guchen Electronics is a manufacturer of all kinds of high voltage connectors. Our products include, high voltage interlock connectors, low/high current HV connectors and cable assembly which are compliant with international standards. We have an excellent team and advanced production equipment to meet market demands.

Service

No matter your business is large or small, OEM, ODM and OBM orders are all available. We can provide you with the best pre-sale and after-sale services, to ensure that your orders are completed smoothly in time. Guchen connectors covers all kinds of types with OEM services. We firmly believe that it is the best way to establish a win-win cooperation. Guchen EV HV connectors is your excellent choice. The reasons why Guchen EV HV connectors is your competent partner: 1) Good quality + Competitive price + Professional service 2) Short delivery date 3) Reliable and stable after-sale service

Contact

Product Details Features Applications Configurations Message

Quote Now > Send Email >

GVA630 Series – Compact, Reliable and Cost-Effective HV Connection Solution

The GVA630 series is a 3-pin high voltage plastic connector designed for applications requiring high voltage and low current power transmission. With a maximum current rating of 40A, this connector is optimized for compact vehicle electrical systems where space efficiency and reliable performance are essential.

Compared with traditional low-current metal high voltage connectors, the GVA630 series offers significant cost advantages while maintaining excellent electrical performance and safety features. It is an ideal choice for customers seeking a high-performance yet budget-friendly high voltage connector solution.

40A 3-Pin High Voltage Plastic Connector for Safe and Reliable EV Power Connections

Key Technical Features

Model	GVA630 Series 3-Pin Connector
Rated Voltage	Up to 1000V DC
Rated Current	Up to 40A 2.5 mm² cable: rated current 20A 4 mm² cable: rated current 30A 6 mm² cable: rated current 40A
Wire Cross Section	2.5mm² / 4mm² / 6mm² single-core unshielded or shielded wire
Operating Temperature	-40°C to +140°C (including temperature rise)
Ingress Protection	IP68
Shielding	360° EMC shielding for excellent EMI performance
HVIL	Supported for enhanced safety
Plug Type	Straight plug (3-core)
Keying Options	A / B / C to prevent mismating
Compact & Lightweight Design	Ideal for space-constrained installations

Wide Applications in EV and Commercial Vehicle Systems

Thanks to its compact structure and reliable performance, the GVA630 series can be widely used in various high voltage auxiliary systems, including:

Vehicle air conditioning systems
OBC
Battery heating systems
Electric power steering (EPS)
DC-DC converters
MCU
PDU
Low-power electrical devices around vehicle control systems

It provides stable power connections for various small-power high voltage components, supporting the safe and efficient operation of EV and commercial vehicle electrical architectures.

Flexible Cable Compatibility and Multiple Coding Options

The GVA630 series is designed for repeated vehicle maintenance and service requirements, achieving: Mechanical durability: ≥100 mating cycles
This ensures long-term connection reliability throughout the vehicle lifecycle.

40A 3 Pin High Voltage Connector for Electric Vehicles

The GVA630 series supports both shielded and non-shielded cables, compatible with: 2.5mm², 4mm², 6mm² cables

To meet different vehicle wiring requirements and prevent incorrect mating, the connector is available with multiple mechanical coding options, including: A, B, C

Touch-proof design for both plug and receptacle, preventing accidental electric shock during operation

With excellent sealing performance and robust mechanical design, the connector is suitable for harsh automotive environments.

GVA280 Series – Alternative Solution for 30A Low-Current Applications

In addition to the GVA630 series, GUCHEN also provides the GVA280 series 2-pin 30A high voltage plastic connector as another solution for low-current high voltage applications.
Both GVA630 and GVA280 series are developed with GUCHEN’s independently designed core components, achieving excellent performance within limited installation spaces.

GVA630 and GVA280 series low current connector

GUCHEN – Supporting the Future of Electrified Mobility

With continuous innovation in high voltage connection technology, GUCHEN provides safe, reliable, and cost-effective solutions for electric vehicles, commercial vehicles, and new energy applications.
From high-power battery systems to low-power auxiliary electrical devices, GUCHEN high voltage connectors help ensure the safe and stable operation of vehicle high voltage electrical systems, while continuously supporting the development of smarter, cleaner, and more efficient future mobility.

Message

If you are interested in our products, please fill in the message form below. Our sales representative will contact you within 24 hours.