Pre-fab
Pre-fab
I have used the modular systems for both lighting and devices. Biggest item on the branch devices is that you need to make sure that the box needs to come with a stronger bracket than what most "maufacturer's" want to put on there. You have to realize that if you are doing it with devices already installed that the "ears" are typically snipped off of the outlet. Therefore the "device" doesn't grab the outside edge of the sheet rock. If you use the wrong bracket your devices will just "wiggle" with the box when someone goes to plug something in or turn the switch on or off. Yes the plate does still attach to the device, but that doesn't feel as "solid" as if the device ears are attaching to the outside edge of the rock.
Make sure you do a "great" layout. Not just an average or good layout. Have the manufacturer ship by room with the room numbers stamped on the outside of each box needed for that room - each box for that room should come with a drawing that indicates where those parts go. The time spent up front should come back to you three fold. The larger project that I used them on (estimated 4,500 hours for branch wiring and devicing) saved us about 25% of the labor (Came in at 3,300 hours). I know, some factor of error can be here because of the time keeping used, but the point is it saved our company about $70,000 in labor for an extra $8,500 in material.
Wago's, I have had mixed reactions to. Still a bit on the fence with these. I have had one foreman absolutely think they were the best ever and then the service guy who went to the job 3 years later, says he hates them and there were a "bunch" of "loose" connections. This foreman used them for everything, devices, j-boxes, feeds to lighting, etc. I would be okay with them in a device box.
