High-Current 500A/600A Busbar Connection Solution for BESS Applications

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

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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.

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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.

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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

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MCU High Voltage Wire Harness Assembly

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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

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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.

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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.

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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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GCS2 500A/600A High Current Busbar Connector

Featuring a compact structure, low temperature rise, high electrical conductivity, and excellent environmental protection performance, the GCS2 busbar connector enables flexible battery pack integration and supports reliable parallel connection between battery modules.

The GCS2 series is engineered for high-power energy storage applications, offering 500A/600A rated current capacity with optimized current-carrying performance.
The connector adopts a pure copper conductor structure with silver plating treatment, ensuring:

Excellent electrical conductivity
Reduced contact resistance
Lower heat generation
Stable long-term operation under high current loads

GCS2 series 500A/600A 1500VDC busbar connector

Key Features & Advantages

◆ 1500VDC High Voltage Performance
Designed for modern high-voltage energy storage systems, the GCS2 supports 1500V DC rated voltage, meeting the requirements of next-generation BESS platforms.
Advanced insulation design provides:
--High dielectric strength up to 6800V AC/min
--Insulation resistance exceeding 5000MΩ
--Enhanced electrical safety and reliability

◆ Flexible Busbar Routing Design
The innovative structure allows the busbar to exit from four different directions, providing greater flexibility for system layout and installation.
Advantages include:
--Optimized battery pack design
--Reduced installation space requirements
--Convenient system integration
--Improved assembly efficiency

◆ Arc-Resistant & Waterproof Structure
The GCS2 connector adopts an advanced protective design to improve operational safety in demanding environments.
Key protection features:
--Arc-resistant structure
--Waterproof sealing design
--IP67 protection rating
--UL94 V-0 flame retardant housing material
It ensures reliable performance in harsh environments, including outdoor energy storage cabinets and industrial applications.

◆ Reliable Battery Pack Parallel Connection
The GCS2 series is designed for battery module connection and parallel connection applications, enabling efficient power distribution between battery packs.
Typical applications include:
--Containerized Energy Storage Systems (ESS)
--Industrial Battery Energy Storage Systems
--Renewable Energy Storage Solutions
--High-voltage battery packs

Main Parameters:

Technical Parameters
Material	PA66 / T2 Tin-Plated Copper	Rated Voltage	1500V DC
Rated Current	500A / 600A	Salt Spray	NSS 96h
Dielectric Strength	6800V AC/min	Insulation Resist	>5000MΩ
Operating Temperature	-40 ~ +125°C	Protection Rating	IP67/UL94 V-0
Compatible Cable Size	185mm²（Max）	Compatible Cable Lug	JG185-10（Max）
Mounting Screw Torque	M4×10/2N.m	Connection Screw	M10×20/25N.m

GCS2 Series Selection Guide

Series	Current Rating	Recommended Application	Key Benefits
GCS2 300A/350A	300A / 350A	Modular ESS Battery Packs & Energy Storage Cabinets	Compact design, flexible installation, optimized system integration
GCS2 500A/600A	500A / 600A	High-Power BESS & Industrial Energy Storage Systems	Maximum current capability, high reliability, heavy-duty performance

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GCS2 500A/600A 1500VDC Busbar Connector for ESS

GCS2 Series Selection Guide