Solar y branch connectors are 3 to 1 connectors that allow for a safe and simple parallel or serial-parallel connection of PV modules. Available in either 3 female to 1 male, or 3 male to 1 female, and pluggable with single-pole MC4 connectors
773 series wire connector, it's easy to plug in during use, and very popular in the construction and decoration industries. Different poles can be chosen.