I’m looking for THHN (or equiv) wire:
Suggest THWN-2 / THHN-2. I get mine online from WesBell.
Half the conduit installs on the planet wind up "assuming" water ingress, and in a shop, one ass-u-me's that oil MAY also "get around".. so JF plan to handle it, whether YOU think it will never-ever happen or not.
An example.. note the multiple ratings:
THHN 4 AWG STRANDED, COPPER | WesBell Electronics
I’m also looking for two 3 phase load centers to put after my rotary phase converter (240V 3ph) and transformer (440V 3ph) some breakers to put in them:
240V: 5A, 10A, 15A, 20A, 30A
440V: 5A, 10A, 15A
- AT 300-V class, I have two load-centers spare. Just looked.
You - maybe - cannot use them, nor can I. Email sent.
Coming off a Delta service (our RPC's .. or my Phase-Perfect) the any leg to ground exceeds the (Eaton / Cutler-Hammer) 120 V label max. on at least one leg. That bars use of 1-Pole 120/240 breakers. If you even planned any.
Coming off even my Delta-Wye transformer, all THREE legs (here) are above 120 VAC to Earth as ....the actual split-phase service enters @ 246 VAC, and the transformer delivers 1:1 246 VAC Wye, not 208 VAC Wye. That was not an accident. I don't use the lower Voltage (nominally 142 VAC) off it at all.
With that 440 Transformer under-roof, you need to be looking for "600 Volt Class" goods, too.
"The Devil is in the details", y'see.
- Speaking of which... NFPA 70 is searcheable online these days. With expert commentary. Take advantage of that.
They have made a few changes to it the past 65 years..
IF .. I were "shopping"? My "some breakers" list would have Square-D "QO" family only, and with specific part numbers.
One cannot mix and match this s**t across family. Nor mix bolt-on, clip-on, or "unit mount" even WITHIN a "family".
Pick your favourite major-maker "family". Stick with it.
Less waste and hassle over time as your stash of goods is re-usable in everything you've wired... since 1955, as to the "QO", Dad then I.
SQ_D "QO" is VERY widely utilized, so there are plenty of sources, including NOS & NNB surplused from altered projects at "slight" discounts.
No "magical" huge bargains, though. I did say "widely utilized?" It finds buyers, and rapidly.
Last thing you need are problematic orphans, abandoned versions, and obsoletes, and some brands, even major-maker? Surely ARE "problematic."
I have a half sheet of 3/4” CDX for trade for everything above :-)
Phhht.. no help!
I'm an "ACX exterior" guy! Prolly the wrong-way "half", too, given you are in California?
My luck it would be full 4' X 8' but "half a sheet" arright ...... split to 3/8" thick?