I have a 24VAC transformer that I plan to use in a shed for powering landscape lighting, WiFi cameras, sensors, etc. I had been powering these things from my irrigation system transformer, but I'm too close to overloading it now.
Here's how I have the transformer positioned now, and how I plan to connect it with conduit:
The red lines for the 110VAC conduit go behind the irrigation box door even though I drew them in front. The yellow line will be PVC conduit that connects to the existing low-voltage conduit going to the irrigation box (that's where all my direct burial wires to my gadgets come in). I'll replace that elbow with a "T".
Two things seem a little janky about this setup:
Those single gang boxes are a little loose on the transformer. I took the lock nuts off the transformer and just screwed the boxes on directly. However, I can't screw the boxes on tightly or they'll be at odd angles.
The transformer is deeper than the boxes. This means that the boxes just hang off the transformer:
There's roughly a 3/4" gap between the box and the wall. I could put some wood behind it to stabilize it, but something tells me I'm just not using the right parts for the job here.
Disregard the exterior siding: This is inside a shed (attached to the house) with a not-so-weathertight door. I'm guessing this is a "damp location."
Here's a photo of the knockouts on the bottom of the box. If I were to directly connect the new transformer to the irrigation box, I think I'd connect to the second knockout from the far left and move the existing low-voltage wiring to the knockout on the right.