Yes but why would access even be needed from behind the panel?
Why not put the clips on the front side where they are designed for? then the ears on the device will be against the box and all is tight.
Why not put the clips on the front side where they are designed for? then the ears on the device will be against the box and all is tight.
Looks like someone put their stacked assembly together then ....oops.... how do I get the boxes in the wall now...
That's exactly what we did. Not my mistake but to do the final assembly faster by doing as much on the bench as possible. I have I have close to 1600 of the assemblies to do and making the stacked assembly on the bench and mounting it from behind the panel allows me a quicker final assembly.
The slots in the ears go the other way... they allow a deeper, more recessed box installation, not shallower or jutting.Loosen the plaster ear screws, slide off the ears, push the box through the hole from behind, reattach the ears to each box and then screw down the complete assembly to the pre-drilled holes.
Very logical, but any inspector looking at it could make a strong argument that the box is not being installed in conformity with manufacturer's instructions.
He'll have to remove screws completely.... from box and from box-mounting surface.... then re-attach to both box and box-mounting surface from front side.
Honestly, have you seen manufacturer's instructions on installing old work boxes?
The box manufacturer's instructions will have nothing to say about the structural quality of THIS plastic box-mounting surface. If anything, the plastic manufacturer would be the source of instruction for the structural abilities of the plastic.
Frankly, I intuitively have difficulty feeling that two machine screw heads are adequate to keep the plastic from cracking / breaking from the plug insertion / removal forces.
I agree. I'm not sure who drilled the third and fourth box-mounting holes in the mounting substrate, but I suggest they be used.... If anything, the plastic manufacturer would be the source of instruction for the structural abilities of the plastic.
Frankly, I intuitively have difficulty feeling that two machine screw heads are adequate to keep the plastic from cracking / breaking from the plug insertion / removal forces.
I wouldn't change anything. Once the device ears sandwich the plastic it will be stronger on pullout.