Difference between mc3 and mc4 connectors

Connectors are among the main distinguishing features of the modules. They are used in order to prevent misconnection. The solar photovoltaic industry uses several types of connectors or standard non-connector junction boxes. Now let us see some difference between mc3 and mc4 connectors. 

MC3 connectors are a mostly obsolete type of single contact connector commonly used for connecting solar panels. Can be installed on any conventional solar module junction box, solar combiner box interconnection or added to solar modules with existing MC3/Type 3 connectors for extended distances. Greatly speeds up installation of solar array. Features of MC3 connectors:

• With excellent ageing resistance and UV endurance, it can be used in harsh environments.
• The cable connects by means of a rivet and lock.
• It does not need extra instruments for the removal of plugs and removal will not cause any harm to plugs

MC4 connectors are the name of the connection type on all new solar panels, providing an IP67 waterproof and dust proof safe electrical connection. Featurers of MC4 connectors:

• Stable self-locking system which is easy to lock and open
• Corrosion-resistant connectors for long-term usage
• Good material make sure the transmission in the stable situation

Difference between mc3 and mc4 connectors