Battery High Voltage Connector |Connectors for ESS Battery

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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.

GVA280 Series 30A 2-Pin High Voltage Plastic Connector

SH3 Series 2-Pole 350A High Current Plastic Connector

80A-400A MINI MSD (Manual Service Disconnect)

PRC40 Connector 3 POS Receptacle with Integral Plug

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).

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.

UQD Connector | Universal Quick Disconnect Coupling

UQDB Series Blind-Mate Floating Coupling

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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

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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

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GCS12 12mm Energy Storage Connector Details

The GCS12 12mm connectors are high-current, high-voltage connectors used to interconnect battery modules in a battery energy storage system (BESS). They feature a locking mechanism that allows the connector to be inserted and removed with one hand. The RoHS-compliant battery high voltage connector has a power rated voltage of 1500V DC, with 250A to 350A current ratings, and has an operating temperature range of -40℃ to 125℃.
Guchen GCS12 Series includes a variety of options for 100A to 350A current applications. The GCS12 Series connector also provides finger protection during assembly that meets IP69K requirements, ensuring worker safety while providing reliable performance over many years of operation.

Main parameters:
Applicable wire diameter: 70mm² / 95mm² / 120mm²
Rated current: 250A / 300A / (350A/400A)
Rated voltage: 1500V

Your benefits at a glance:

► Highly reliable connector design
GCS12 12mm battery connector provides high reliability and safety through its electrical insulation resistance test level at 40℃ temperature and 50% relative humidity (RH).

► High current carrying capability
The connector features a design with a high current carrying capability of 250A, 300A to 350 Amps, making it suitable for direct connection of battery cells.

► High flexibility, 360 degree rotation
GCS12 12mm battery high voltage connector is designed to provide users with the flexibility to connect multiple batteries in parallel or series configurations. The energy storage connector streamlines assembly, installation and maintenance due to its compact size and secondary locking mechanism that prevents disconnection from the battery terminal.

Applications

12mm high-voltage battery connector for energy storage system

High-current, high-voltage connectors used to interconnect battery modules

GCS12 12mm battery connector

BESS connector with a high current carrying capability

Standard Configuration of GCS12 12mm Battery Pole Connector:

Model		GCS12 12mm
Conductor cross-section		70mm²	95mm²	120mm²
Electrical Performance	Rated current	250A	300A	350A
	Rated voltage	1500V
	Withstand voltage	4000V AC
	Insulation resistance	>500MΩ
	The above insulation resistance is tested in an environment with a temperature below 40°C and a humidity below 50%RH; When the humidity is above 95%, the insulation resistance is ≥300MΩ.
Mechanical Performance	Mechanical life	500 times
	Number of contacts	1
	Vibration level	QC/T 1067.1-2017 V1
Environmental resistance	Protection class	IP67\UL94 V-0
	Operating temperature	-40℃~125℃
	Salt spray	Neutral salt spray 48h(unsealed); 480h(sealed)
Main material	Material (hood/housing)	Nylon (Polyamide- PA)
	Material (seals)	Silicone Rubber
	Material (contacts)	Silver plated red copper

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