![]() Now it come on all new solar panels, providing an IP67 waterproof and dust proof secure electrical connection. ![]() They are UV protected and weather resistant. We have high quality MC4 wire Connector long life Lifespan. ![]() But you need a device to disconnect them, and make sure that they don’t accidentally disconnect when cables are pulled. The Solar MC4 connector allows for easy construction by pushing the connectors from the side panel together by hand. Solar Mc4 Connector commonly used for connecting solar panels and are single contact electric Mc4 connector. MC4 stands for the “Manufacturer Multi Contact”. The Solar Mc4 wire Connector make solar panel connection each other very simple. ![]() There is a pair (male and female) of connectors in which one is male connector and second is female connector. So, for a perfect operation of all the functionalities of the SUN2000, it is necessary to pay attention to the installation of the inverter, the crimping of the terminals, polarity of the strings, tightening of the connectors, quality of the installation, something that is not possible Identify in a remote monitoring.Solar MC4 Connectors are used for connect the solar panel each other with very simply way. The cover of the terminals should be tightened to the end of the thread thus generating total tightening of the terminal the cover and preventing the terminal movement inside the cover. This allows the connector to move within the cover and as a consequence does not generate the full connection between the terminal of the string to the terminal of the inverter.īad grip on the connector prevented the total fitting of the terminals thus generating false contact between them and as a consequence overheating and melting of the cover and electric arc between the terminals. Being a danger to the life of the installer.ģ: Another case is the bad grip on the connector. However, many disconnect the cables with the module in short, thus damaging the connectors.ĭue to the high current, and the current characteristic continues to cease in no time, the risk of generating electric arc is large. In this case, the ideal is to wait until the night to disconnect the cables and invert the connectors. When a string is reversibly connected, the module enters short. Over time, the inverter may begin to display faults regarding the disconnected string or under voltage in the module.Ģ: The second case is related to the lack of experience. With this deformation and the load on the output, it began to appear electric arc inside the connectors, contributing even more with the heating. Thus, may generate the following damages:ĭue to the high current and the low contact area of the connector, the above connector has undergone a heating, deforming it. In all our analyses, we were able to identify three situations that lead to this problem:ġ: The first and most common, is about of the crimping of cables, we realized that two factors are involved: the lack of correct equipment and the length of the cable available for crimping. The biggest consequence of this is the amount of damage to the DC connectorsĪs we cannot demand the training of technicians for integrator companies, we have received some cases of these problems. In Brazil, we perceive that many integrators do not have the appropriate tools and experience for the installation of equipment. As a bench technician, one of the biggest problems I identified in the inverters was referring to the connectors MC4.
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