ESR 16 Amp 4 Pin Eco Coupler Socket 3P+E Industrial IP44 Red 415V EC16444
16 amp 3 phase coupler sockets
380 - 415 volt - colour coded red
4 pin - 3P+E (3 pole and earth)
Earth pin at 6h
Weatherproof rated to IP44 - Splash proof
This socket will only accept a matching 16 amp 4 pin red plug, this is a standard safety feature, and these type of connectors cannot be mixed and matched.