Marc, I've installed a number of devices / new breakers inside of my fuse panel; so familiar with working inside of it but I am a newbee relating to the installation of a TVSS. I currently and most recently installed two adjacent to the fuse panel phase couplers in smaller double gang boxes. Historically I also have interiorly mounted phase couplers. I've also added more circuits / breakers to the inside of the panel as I prefer to add new breakers / circuits for new electic. The TVSS installation looks to be very simple and logical. I just want to make sure that I am doing this right.
Look for four circles in the paint, about the size of quarters and possibly quite faint. Is this what you meant by "mall prepunched marks"?
Did you buy from a distributor or surplus? . Especially if latter, you may have a special order or non-standard part . You can cut a whole for conduit with a dremel tool or hole saw. Greenlee punches are pretty expensive.
No circles in the paint; just small dimples as seen in the pictures above (1 on each side). I believe these are locations to be able to drill for conduit. I purchased this device surplus. Not really too worried about drilling the hole except for the metal shavings (which I can clean). I also have a couple of dremel tools and a "new" still in the box Bosch dremel trio my wife bought for me. Its going to be mounted adjacent to the fuse panel on plywood in a similiar fashion to how Steve mounted his TVSS. I have two double gang metal boxes coming out of the fuse panel right in the spot where I want to mount this device so will need to move one of the two over.
The plastic overlay to metal has a small area of cut out metal for the alarm NC/NO contacts. I currently use wireless for my Rainbird rain sensor and was thinking of doing the same with this device except use one of the two HAI wireless receivers I have.
-- each black goes to a different 120VAC phase, preferably through a 30amp double-pole breaker
-- white to neutral, and
--green/yellow to earth ground.
In the panel I have easy access to neutral. Is is preferred to utilize two unconnected to anything else 30AMP breakers? I only currently have 15AMP, 20 AMP and 40AMP breakers all in use. I was going to make space for two new 30 AMP breakers. Is it preferred to put these new breakers on the top of the set of breakers being the first in line? Other than the neutral being already connected to the "earth ground" would it be safe to connect the green/yellow to the neutral bar, fuse panel cavity or a secondary "earth" wire via a new XX guage wire (from a new ground stake adjacent to the service entrance).