30 years PV connections.
Count on it.

30 years of connections for a sustainable change

We mark 30 years of pluggable PV DC connectors. Proven in the field and built for the long run. In an industry defined by scale, speed, and long lifecycles, reliable connections are not optional. They are essential. Join us in celebrating their role in enabling safe and sustainable solar growth.

What reliable solar demands

Count on it.

Learn more on the expertise behind the most reliable PV DC connector.

Engineered reliability. Documented in the field. Ready for the future. 

Three decades of engineering, people and responsibility behind the world’s most trusted PV DC connection.

We connect clean energy to everyday life: reliably, responsibly, and at scale.

In PV, a small connection can set the risk profile of an entire plant. You need reliability you can justify. Over three decades, we have focused on reliability, technical governance, continuity and innovation that helped shape solar growth.

Celebrate with us a unique achievement for the PV industry.

What 30 years of pluggable DC connections stand for

First, we built MC3, then MC4 and its entire product portfolio around one principle: no compromises in critical connections.

Our approach combines long-term field evidence with future-ready design and the people and processes that make quality repeatable worldwide. 


30 years is a record you can count on.

MC4 stands for more than a product: it stands for engineered reliability, the experts behind it, global trust and responsibility built into design and execution. 


What it takes to make reliability repeatable

Reliable in every connection: reliability is engineered through materials, contact technology, testing, documentation and controlled execution. 

The experts behind: engineering expertise, customer proximity, local support and training that makes quality repeatable everywhere. 

Global trust: consistent supply, clear standards and long-term continuity for designs, sourcing and support. 

Responsible by design: responsibility engineered into product and execution, supporting safe work and reliable performance in real conditions

Celebrate with us at the upcoming trade shows

We will mark the 30 year milestone at selected trade shows.
Dates and locations will be published here as they are confirmed.

SNEC Shanghai
Jun 3 - 5

Intersolar Europe, Munich
Jun 23 – 25


Asia Sustainability Week Thailand
Jul 1 - 3

 Intersolar South America
Aug 25 - 27

Intersolar  Middle East
Sep 1 - 3

Smart Energy Forum CZ
Oct 14 - 15


Renewable Energy India Expo
Oct 22 - 26

RE+, USA
Nov 16 - 19

Genera, Spain
Nov 24 - 26

Energaia, France
De 9 - 10- 19


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