Complete Electrical Interconnection Solutions for Marine Applications

Three Integrated Product Portfolios Delivering Reliable Connectivity from Shore Power to Subsea Applications

As the global maritime industry continues its transition toward greener, electrified and smarter operations, shore power, electric propulsion and deep-sea applications are becoming key drivers of industry development. Increasingly complex marine environments and diverse connection scenarios place higher demands on the reliability, compatibility and integration of electrical interconnection systems.

Backed by years of expertise in marine connectivity, Yonggui Technology has established strong R&D capabilities, advanced manufacturing capacity and comprehensive project delivery experience. The marine product portfolio covers three major application areas—shore power and charging, onboard electrical interconnection and subsea sealed connectivity—providing complete electrical interconnection solutions for a wide range of marine applications.

SHORE POWER & CHARGING SOLUTIONS

01 SHORE POWER CONNECTORS

Designed for conventional fuel-powered vessels during berthing, shore power connectors enable ships to connect directly to the onshore power supply, eliminating the need for auxiliary diesel generators. They provide a stable and reliable power source for onboard lighting, communication systems, accommodation facilities, entertainment systems and other auxiliary equipment, meeting the full range of electrical demands while vessels are docked.

02 INTEGRATED SHORE POWER SYSTEMS

The integrated shore power portfolio includes cable reels, marine charging cabinets and dedicated shore power distribution boxes. Designed for demanding port and marine operating environments, the integrated system combines cable management, voltage stabilization, power distribution and overload protection into a single solution. Working seamlessly with shore power connectors, it enables the rapid deployment of complete shore power systems for vessels at berth.

03 CHARGING PRODUCTS

Designed for battery-powered electric vessels, the charging product portfolio supports shore-based charging during berthing. In addition to utilizing existing shore power interfaces for charging, the portfolio also includes GB/T-compliant fast charging and high-power charging solutions. For high-power charging applications, charger-side and liquid-cooling system solutions are available. Charging interfaces and complete charging systems can also be customized to meet specific project requirements.

04 BATTERY SWAP CONNECTORS

Designed for battery swap applications in electric vessels, the product series supports shore-based energy replenishment during berthing. Featuring a floating installation design and automatic docking capability, it incorporates anti-electric shock protection, HVIL (High Voltage Interlock Loop), temperature monitoring and a long service life.

MARINE CONNECTORS

01 STAINLESS STEEL PRODUCTS

The YM Series features high corrosion resistance for marine environments.

02 INTERNAL HIGH-VOLTAGE PRODUCTS

The product portfolio includes Battery Module Interconnection Connectors, Manual Maintenance Switch Connectors, High-Voltage Wiring Harnesses and Power Distribution Units (PDUs).

SUBSEA SEALED CONNECTORS

The product portfolio includes the SM Series and SH Series, supporting low-frequency signal transmission, hybrid network and power transmission, and electro-optical hybrid transmission.

01 SM SERIES

Designed for water depths of 0–3,000 m, the SM Series features glass-to-metal hermetic sealing, with 7 shell sizes and 40 contact arrangements.

02 SH SERIES

Designed for water depths of 0–7,000 m, the SH Series features rubber vulcanized sealing, with 8 shell sizes and 24 contact arrangements.

ADVANCING MARINE DEVELOPMENT THROUGH PROFESSIONAL EXPERTISE

Backed by years of expertise in marine electrical interconnection and extensive project experience, customized connectivity solutions can be developed for different vessel types, operating conditions and application requirements. Responsive support is provided throughout the entire process, from product selection and system layout to installation guidance and after-sales operation and maintenance.

Looking ahead, continued development of connectivity technologies for green vessels, intelligent vessels and deep-sea equipment will drive ongoing improvements in product performance and more comprehensive solutions for a full range of marine applications, supporting the advancement of the global shipping and marine equipment industries.