TP&N board

Hang on wall and build.  But decide how your trunking is coming in first, allowing for bends.


As you are going to come in via trunking above.........it is best to have a horizontal 4" or 6" across top of DB. Lots of options for connection of cable management but keeps the nice big slot in the top of the DB body and avoids EMC issues.


Depending on make of DB, most have removable plate on top with a rounded rectangular slot left on the DB body. You want that as your way in, so dump the plate. Again, most have an option of a "trunking kit" , a 6 " or  4 " box trunking to suit top of DB and associated holes to line up with fixings for the , now dumped, top plate [ a horizontal box trunking across the top of DB, can overlap or be flush or you can even have your new trunking come in the ends or the top or what ever. It is nice to leave flexibility for the future, say conduit or SWA, so it is good to have plenty of spare space on the top of this "adaptor trunking" / trunking kit"].

The kits come with come with end caps. You can make one "kit" yourself, but it is time consuming. The pre-fab ones have luverly rectangular strip knock out that match up with the rectangular aperture on the top of the DB body. You push these out and file or install chunky grommet strip or use an insulator sheet with a slot to protect against sharp edges.

Hang on wall and build.  But decide how your trunking is coming in first, allowing for bends.


As you are going to come in via trunking above.........it is best to have a horizontal 4" or 6" across top of DB. Lots of options for connection of cable management but keeps the nice big slot in the top of the DB body and avoids EMC issues.


Depending on make of DB, most have removable plate on top with a rounded rectangular slot left on the DB body. You want that as your way in, so dump the plate. Again, most have an option of a "trunking kit" , a 6 " or  4 " box trunking to suit top of DB and associated holes to line up with fixings for the , now dumped, top plate [ a horizontal box trunking across the top of DB, can overlap or be flush or you can even have your new trunking come in the ends or the top or what ever. It is nice to leave flexibility for the future, say conduit or SWA, so it is good to have plenty of spare space on the top of this "adaptor trunking" / trunking kit"].

The kits come with come with end caps. You can make one "kit" yourself, but it is time consuming. The pre-fab ones have luverly rectangular strip knock out that match up with the rectangular aperture on the top of the DB body. You push these out and file or install chunky grommet strip or use an insulator sheet with a slot to protect against sharp edges.