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Precision-engineered connectors trusted by Dutch industrial, marine, and energy sectors worldwide.
Why the Dutch market demands the highest standards of waterproof connectivity
The Netherlands stands as one of Europe's most dynamic industrial nations, with a geography that inherently demands waterproof, corrosion-resistant electrical solutions. From the iconic North Sea offshore wind farms and Rotterdam's vast port infrastructure to Amsterdam's smart city grids and Eindhoven's precision manufacturing clusters, waterproof cable connectors are a foundational technology enabling Dutch industry to function reliably in wet, saline, and high-humidity environments. As the Netherlands accelerates its energy transition — targeting 70% renewable electricity by 2030 — the demand for robust, IP67/IP68-rated connectors has surged across every sector of the economy.
Waterproof connectors are critical infrastructure across these high-growth Dutch sectors
The Netherlands is home to some of Europe's largest offshore wind projects, including Hollandse Kust Noord and Borssele. These installations require IP68-rated waterproof circular connectors capable of withstanding saltwater immersion, extreme temperature cycling, and high-vibration environments across 25+ year operational lifespans.
Rotterdam, the largest port in Europe, and Amsterdam's IJ harbour rely on waterproof cable connectors for automated crane systems, vessel electrification, port monitoring sensors, and subsea lighting. Marine-grade connectors with bayonet locking mechanisms are standard for dockside power distribution and vessel shore power connections.
The Westland and Aalsmeer greenhouse regions — producing over 50% of Europe's cut flowers — deploy extensive irrigation automation, LED grow lighting, and climate sensor networks. Waterproof connectors rated to IP65 or higher are essential for reliable operation in permanently humid, chemical-exposed greenhouse environments.
The Netherlands' world-renowned Delta Works and the ongoing Room for the River programme depend on submersible pumps, water level sensors, and hydraulic actuators — all requiring fully sealed, waterproof connectors for continuous underground and underwater operation in critical flood defence systems.
ProRail and NS (Nederlandse Spoorwegen) maintain one of Europe's densest rail networks. Trackside signalling, platform sensor arrays, and traction power distribution systems require connectors that meet EN 50155 and IEC 61373 standards — combining waterproofing with vibration and EMI resistance across the full Dutch rail network.
The Brainport Eindhoven region, home to ASML, Philips, and NXP Semiconductors, demands ultra-precision miniaturised connectors for semiconductor manufacturing equipment, medical devices, and industrial robotics — where gas-sealed and waterproof mini-rectangular connectors ensure signal integrity in cleanroom and precision environments.
Key technology and regulatory trends driving connector innovation in the Dutch market through 2030
The Netherlands leads Europe in EV adoption per capita. The national target of 1.9 million EVs by 2030 demands millions of IP67-rated charging connectors for public charge points, fleet depots, and residential installations. Waterproof connectors compliant with IEC 62196 are in high demand from Dutch charging network operators.
Tennet and Alliander are investing billions in smart grid modernisation. High-voltage waterproof connectors for battery energy storage systems (BESS), smart meters, and grid-edge devices are seeing rapid adoption as the Netherlands integrates variable renewable energy sources into its national grid infrastructure.
Dutch manufacturers are rapidly adopting IIoT sensor networks, collaborative robots (cobots), and digital twin technologies. This drives demand for miniaturised, multi-pin waterproof connectors capable of transmitting power and high-speed data simultaneously across factory floor environments with IP65+ protection.
The Netherlands is pioneering offshore green hydrogen production and tidal energy projects in the Wadden Sea and North Sea. These emerging sectors require next-generation subsea connectors rated beyond IP68, with resistance to hydrogen permeation, extreme pressures, and corrosive marine chemistry.
Dutch procurement increasingly mandates RoHS 3, REACH, and WEEE compliance. Connector manufacturers supplying the Netherlands must demonstrate halogen-free materials, recyclable housings, and full material declarations — aligning with the EU's Green Deal and the Netherlands' ambitious circular economy targets.
Amsterdam, Rotterdam, and Utrecht are investing in smart street lighting, underground cable management, autonomous vehicle infrastructure, and urban sensor networks. IP67 and IP68 waterproof connectors are standard components in all outdoor smart city installations, where reliability in rain, flooding, and freeze-thaw cycles is non-negotiable.
How our waterproof connectors are deployed in real Dutch infrastructure and industrial projects
FQC Series bayonet waterproof connectors deployed in subsea cable junction boxes and turbine base power distribution units, rated IP68 at 10m depth, with 316L stainless steel shells for North Sea saline resistance.
FQN Series internal-bayonet connectors used in automated stacking crane control cabinets and trackside power rails at ECT Delta Terminal, providing IP67 sealing against constant wash-down and rain exposure.
FX16-7 Series waterproof circular connectors connecting distributed climate sensors, drip irrigation solenoids, and LED grow-light drivers throughout 4,000+ hectares of Dutch glasshouse horticulture facilities.
J30JM1/2 gas-sealed mini-rectangular connectors used in trackside signal processing units and platform screen door control systems on the Noord/Zuidlijn and RandstadRail networks, ensuring EMI immunity and IP65 protection.
IP67-rated waterproof circular connectors integrated into underground cable distribution boxes for Utrecht's 40,000-node smart LED street lighting network, enabling remote dimming and fault monitoring via NB-IoT connectivity.
Gas-sealed mini-rectangular connectors providing ultra-clean, hermetically sealed signal connections in EUV lithography system sub-assemblies, meeting semiconductor-grade cleanliness and outgassing requirements.
Shandong Longli Electronics Co., Ltd. is a nationally recognised "Key Little Giant" enterprise — specialised, refined, unique, and innovative — and a provincial-level Gazelle Enterprise, Hidden Champion, and Manufacturing Single Champion in Shandong Province.
The company operates dedicated R&D centres in Linyi, Xi'an, and Jinan, possessing comprehensive third-party service capabilities including testing and inspection services, with internationally recognised certifications including CMA and CNAS.
With over 130 product series spanning military connectors, smart grid connectors, new energy vehicle connectors, railway locomotive connectors, mining connectors, petroleum connectors, and marine connectors — Longli is uniquely positioned to serve the full spectrum of Dutch industrial connectivity requirements.
Continuous investment in research and technology to meet evolving global connector standards
The company has undertaken more than 60 research projects, including the Torch Program of the Ministry of Science and Technology, provincial major science and technology projects, and provincial key R&D programs. It has received 25 scientific and technological awards, including provincial science and technology awards and provincial SME technological progress awards.
Over 20 achievements have passed provincial appraisals, with two reaching international advanced levels and twelve achieving domestic leading levels — demonstrating a commitment to innovation that directly benefits international customers in the Netherlands and across Europe.
Products are widely used in aviation, aerospace, military electronic equipment, as well as power grids, new energy, railways, telecommunications, petroleum, and coal mining — sectors that mirror the Netherlands' own industrial diversification and clean energy transition agenda.
Four pillars of excellence that make Longli the trusted partner for Dutch industrial buyers
Awarded Science and Technology Progress, Patent Star Enterprise, and Famous Trademark. Numerous products listed in the National Torch Program — a mark of technological leadership recognised internationally.
Over 10 senior engineers and 100 R&D professionals across regional R&D centres and 12 technical departments — continuously developing connector solutions that meet emerging Dutch and European standards.
Certified to ISO9001:2015 & IATF16949:2016, with CQC and MA certifications. Equipped with advanced testing labs and complete quality processes ensuring every connector meets IP67/IP68 and CE compliance requirements.
Products exported to more than 20 countries with long-term stable partnerships with military, grid, and new energy clients — providing Dutch buyers with the supply chain reliability and technical support they require.
Explore our full portfolio of waterproof and industrial-grade connector solutions available for the Netherlands market
Whether you are sourcing for offshore wind, port automation, smart grid, EV charging, or precision manufacturing projects in the Netherlands — our engineering team is ready to support your requirements with certified, IP-rated waterproof connector solutions.
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