2 way WAGO 273 Series PUSH WIRE connector for use in junction boxes suitable for solid conductors.This reliable connector with PUSH WIRE technology has proven itself a billion times over for more than 30 years running as an immediate solution for use with solid conductors with cross-sections up 4 mm.The transparent housing also enables the electrician or installer to see at a glance whether all the conductors have been fully inserted and properly connected.