This may not always be the case, so it's always a good idea to look at the markings on the junction box or test the polarity with a digital voltmeter. Generally, the female MC4 connector is associated with the positive lead and the male connector is associated with the negative lead. One wire is the DC positive (+) and the other is the DC negative (-). Take a look at the first module and you'll notice that it has two wires extending from the junction box. If you have two or more solar modules to wire in series, the MC4 connectors make it very simple.
#Solarcell plug in series#
Panels connected in series are defined as Strings, Panels connected in parallel are defined as Branches. The below image is the female contact with its corresponding housing. The contact will determine the gender of the connector, NOT the plastic housing. The MC4 connector consists of the contact and the plastic housing. The connectors can be separated but it requires a special MC4 unlocking tool. Due to the locking mechanism of the MC4 connectors, they will not come unplugged and are well suited for outdoor environments. They meet the requirements of the National Electric Code, they're UL certified and the preferred connection method of electrical inspectors. The connectors come in both male and female types which are designed to snap together. Modern solar modules tend to use the MC4 connectors because they make wiring your solar array much simpler and faster. This method is still used on smaller solar panels, but it's slowly becoming a thing of the past. Years ago, solar modules were built with a junction box on the back that required the installer to manually attach wires to the positive and negative terminal posts. These are usually referred to as MC4 connectors. What is an MC4 connector ( male connector & female connector) and an MC4 extension cable ( 8ft, 15ft, 30ft, 50ft, 100ft)? If you're asking this question, you've probably noticed that most modern high power solar modules are manufactured with wire leads that have latching connectors on the ends. This article addresses MC4 connectors, but the same principles apply to other connectors such as Amphenol H4, Tyco, and SMK. NOTE: There are multiple types of interlocking PV connectors.
#Solarcell plug in how to#
How to Use MC4 Connectors and MC4 Extension Cables Pump Installation Equipment & Accessories.Solar Pump Installation Equipment & Accessories.Solar Pump Controllers & Current Boosters.
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