Based on this product's specifications, here are some alternatives and similar models
Kopp 130856009 socket-outlet CEE 7/3 250 V 16 A Black Grey
Summary description:
Kopp 130856009 socket-outlet featuring a CEE 7/3 type design with a 2-module capacity and support for CEE 7/4 plugs. This electrical accessory operates at a rated voltage of 250 V and a rated current of 16 A. Finished in a dual black and grey color scheme, it is designed for reliable power distribution in residential and commercial electrical installations.