MC4 Connectors – Single

MC4 connectors are single-contact electrical connectors widely used in photovoltaic (PV) systems to interconnect solar panels. The term “MC4” stands for “Multi-Contact, 4 mm,” referencing the 4 mm diameter contact pin. These connectors facilitate the easy construction of solar panel strings by allowing adjacent panels to be connected through compatible male and female connectors. While they can be connected by hand, a specialized tool is required for disconnection to prevent accidental separation under tension