Your global partner chosen by many photovoltaic manufacturers

Your long-term partner for DC connection solutions

Empowering sustainable success with trusted PV connections

 

Quality is at the core of everything we do. Our photovoltaic experts provide you with a strong foundation for sustainable success. We contribute to improving the value of your PV products by ensuring the most reliable, safe and globally reknown quality of our PV components.

Do you need customized options?

Engineer-to-order solutions are tailor-made to fit your needs and to ease your processes

Market-leading PV connector set the benchmark ever since

 

Company experience with industry expertise of almost 
30 years

Certified manufacturer and
testing beyond the standard

Highest quality to guarantee
long-term reliability

Why choosing Stäubli to be your partner?

With tailor-made solutions that add value to your product offering, your business benefits from our quality components and services. As your reliable partner, we provide all your product-specific needs and support you every step along the way.

For more than 30 years, Stäubli has been setting the benchmark in photovoltaics with the Original MC4 PV connector. Our reliable product solutions are the technical foundation, making your PV product solutions safe and durable. You will also benefit from our highly skilled service and support teams that ensure everything runs smoothly, giving you and your customers the ultimate peace of mind.

Original MC4 product portfolio for modules, inverters, MLPE, trackers, combiner boxes and BESS

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Cable Couplers

Mitigate power loss, downtimes, service hours, risk of fire of your PV-System by using Original MC4 and MC4-Evo 2 connectors. The unique MULTILAM contact technology will guarantee an excellent long-term reliability and a low contact resistance over the entire product life.

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Product image with the Original MC4-Evo 2 Panel Receptacles, dedicated to alternative energies.
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Panel Receptacles

The MC4 and MC4-Evo 2 panel receptacle can be directly mounted, by means of screw thread. It is the ideal solution to connect your MC4 or MC4-Evo 2 cable coupler as a string input to an inverter or a MLPE device.

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In-line Fuse

With minimal energy loss, low heat generation, robust housing combined with the mating face of the Original MC4 connector, Stäubli offers the ideal fuse products for your PV-systems.

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Energy Storage Connectors

Our storage connector portfolio is used for connecting DC side of the inverter to BESS. The Original MC4-Evo stor, renowned for its established and reliable performance, is designed to be seamlessly connected to the DC side of the inverter, allowing it to be easily integrated with a BESS housing. Its 45° degree twisted mating face uniquely prevents mismatching with PV string connectors, ensuring secure and reliable energy storage connections.

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Product image with branch connectors MC4-Evo 2, dedicated to alternative energies.
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Branch Connectors

MC4 branch connectors are made for easy installation, as no crimping or torquing is necessary. Mating compatibility with MC4 and MC4-Evo 2 connectors, suitable for parallel or serial-parallel connections of strings. Rated at DC 1500 V according to UL 6703.

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There’s only one Original MC4 PV connector

The Original MC4 is the world’s leading PV connector, designed and engineered by our in-house experts more than 30 years ago. As the most installed PV connector worldwide, the MC4 continues to set new industry benchmarks thanks to our drive for excellence and innovation.

Stäubli connectors are crafted with Swiss precision, offering optimal efficiency and long-term performance for small to large-scale PV systems. When selecting connectors, trust the original to rest assured that your operations will be safe and perform sustainably for decades to come.

Trusted and genuine

 

  • Invented by Stäubli engineers in Switzerland
  • Manufactured in compliance with European Conformity
  • MC4 is a protected trademark of Stäubli
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Engineer-to-order solutions for your product-specific needs

True PV Safety. Customized.

Service to meet your exact requirements

Our PV know-how and decades of expereince enable us to meet the demands of a dynamic market and exceed our customer's expectations.

Together with you, we can engineer solutions built specifically for your project with our in-house team of PV experts.

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The Original MC4 product portfolio

Learn more about the advantages of quality products.

Request the download our comprehensive White Paper to explore the anatomy of the PV connector and the secret of contact resistance for reliable, long-lasting connections.

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True PV Safety. Anywhere.

Safe even in harshest environment

Installing electrical systems in temperatures exceeding 70°C, at altitudes above 2,000 meters, or in humid areas requires tailored solutions. Deserts, water surfaces and high altitudes provide vast areas and optimal sunlight, ideal for solar power systems. Stäubli's MC4 connectors are trusted for their excellence in these challenging environments.

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