Renewable Energy – Fresh Ideas for a Better Planet

Our interconnection technology for solar modules sets new standards. With passion we develop products for a sustainable future. 

The high system voltage of photovoltaic systems requires powerful components – and we have accepted this challenge. Our business unit Renewable Energy develops high-quality interconnection technology for photovoltaic components. Our basis are the many years of experience in the automotive industry.


High standards as motivation

Maintenance-free, reliable and weather-resistant: Photovoltaic elements need to fulfill special demands. They have to withstand extreme environmental conditions over their entire service life. In addition, they should be easy to implement, have an optimum cost-benefit ratio and meet the high technical requirements of the UL and IEC norms.


We have assailed these tasks and have developed a new product generation for the wiring of solar modules. Our portfolio includes electrical connectivity solutions like junction boxes for thin-film and crystalline modules as well as connectors.


Our systems provide:

  • Minimal contact resistance
  • Optimized heat management
  • Reliable diode solutions
  • Maximum operational reliability

Basic Fresh Box

The junction box for crystalline modules convinces our customers with its economic and process-reliable workability. It is designed for a current load up to 13 ampere. The pre-locked clamping technology FixClamp enables a reliable and precise contacting of the cell connectors in the Basic Fresh Box.    


Multiple Fresh Box

The junction box can be used for thin-film and crystalline modules. It is suitable for a current load up to 14.5 ampere. The multiple fresh box is ammonia-resistant – which was confirmed by the independent DLG testing institute within the context of the DLG-Focus test.


HC4 Fresh Connector

The one-pole plug connector can be interlinked with the Basic Fresh Box. The innovative concept impresses through the separation of the seal and the strain relief in a form- and force-fitted system. The HC4 Fresh Connector is extremely durable and robust: It is able to withstand temperatures from -40°C to +90°C and it is designed for a current load up to 40 ampere.


Compact S Fresh Box

The junction box can be used for thin-film and crystalline modules. It is suitable for a current load up to 20 amperes. The Compact S Fresh Box is ammonia-resistang – a DLG Focus Test is currently in preparation.



Basic Fresh Box_EN

(6 MB | pdf)


Multiple Fresh Box_EN

(4 MB | pdf)


HC4 Fresh Connector_EN

(6 MB | pdf)


Compact S Fresh Box_EN

(6 MB | pdf)



Hirschmann Automotive GmbH
Oberer Paspelsweg 6-8
6830 Rankweil, Austria
Phone: +43 (0)5522 307-0

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