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 20 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.

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.

eBOS stands for electrical Balance Of Systems. All electrical components of the DC side of the system except the inverter and module form the eBOS application. As the lifelines of a PV system, the eBOS system ensures that the power generated by the modules is gathered and transferred efficiently, reliably and safely.