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:
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:
MC3 connectors | MC4 connectors |
---|---|
No need for Unlock tool | MC4 Tightening and Unlock Tool |
Rennsteig Pro-Kit Crimping Tool (MC3, MC4, Tyco) | Rennsteig Pro-Kit Crimping Tool (MC3, MC4, Tyco) |