Solar Energy: Solution for Photovoltaics by Phoenix Contact


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Seamless connection technology from the photovoltaic panel to the supply


The requirements of the planning, installation and operation of PV systems are broadly diversified. In the design of the electrical installation, not only the initial investment is decisive for profitability, but also the avoidance of losses and the use of material and resources. A comprehensive and coordinated DC installation system offers many possibilities.


When designing the electrical installation of a PV system, the cost of the installation always plays an important role. The connection technology should meet the required standards and be as favorable as possible in the purchase. However, if the installation is to be reliable and economical in the long term, the connection technology must be carefully selected.

Single-part spring-loaded connectors:
In addition to the uniformity and continuity of a PV installation system, the tools also play a role in cost considerations. Especially the crimp tools are important for the quality of the connection – these often expensive special tools have to be included in the total calculation. In this case, an alternative is provided by connectors with a spring connection technique, for which no special tools are required. Many installers consider the one-part design of these components as a big advantage: the cumbersome crimping of the small contact in working environments with limited space conditions – for example in field or on-roof installations – is no longer necessary. This time saving significantly contributes to the efficiency of the plant – a time saving of 25 – 30 percent is then not a rarity.

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1500 V system voltage:

A connection system with a large connection area of ​​2.5 mm² to 16 mm² simplifies cable selection, larger cable cross sections – from 10 mm² to 16 mm² or 6 to 8 AWG – reduce losses. The design of PV systems to a system voltage of 1500 V is currently gaining importance in the market. This is demonstrated not least by the new standard for PV cables, DIN EN 50618. Suitable connectors – such as the PV connector Sunclix from Phoenix Contact – have long been available on the market. With a higher system voltage, it is now possible to group a larger number of modules into strings. In this way a considerable part of the cabling is saved.

Y-distributor for flexible installation concepts
For the parallel connection, Y-distributors have been available for years, which are wired or offered as a connector block. The Y-distributor connects two current paths, for example, two string lines in a solar system. Depending on the combination, strings can be combined in large systems in front of generator connection boxes in order to reduce the number of string fuses or diodes. In small systems, several strings can be merged in a simplified manner before inverters, and existing systems can also be conveniently expanded in this way.

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PTSPL 6: Single position THR solderable mini power connector

PTSPL 6 has been introduced by Phoenix Contact which requires less space on PCB as compare to other power connector of same rating. However, it accommodates large cable cross section up to 6 mm2. It is the first high current connector developed by Phoenix Contact for power application but without insulating body. It is suitable for THR soldering process and a very cost effective solution for inverter manufacturers in Photovoltaic and wind energy.

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