The Wagobox-XL junction box is for use with the Wago 2273 and 221 series Pushwire and Cage Clamp Connector blocks.
The Wagobox-XL has a fast fit slide action mounting points so the box can be fixed to a surface after the connectors have been fitted into the box by using the Wagobox mounting button (WAFB sold separately).

The maximum permitted number of separately supplied individual circuits is two
The maximum number of individual conductor connections is 36, based on the installation of twelve 3-core cables of 1mm²
The maximum number of 4mm² connections is 24 based on installation of six 4-core cables
The cable clamps can grip up to 12 cables with an overall diameter between 3mm and 15mm.

The internal layout of the WAGOBOX XL can be considered as two halves, a left and right side with a larger central connector receptacle between the two.