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Urgent help: fuse breaker box for dedicated line?

Hi,
I've looked for a fuse breaker box for my dedicated line at Home Depot, but I can not find the one that use 120V. Home Depot has only a few types of fuse breaker box, but none of them use 120V (240V only). Here are my questions
1/ Can I use 240V box for 120V? I asked the guy in store and he told me that I may use it but the current will be double (he's not sure about it).
2/ The one that I've looked for is 240V/60A with 3 slots to put fuse. Does it matter for double the current in case I use 240V box for 120V if I use only 20A fuse?
3/ The maximum slots in breaker box that I found is three. Do they make four slots? Where can I find them?
4/ I see JPSlabs.com have special wire for dedicated line for $3.5/foot. Is it good compare to Romex or THINN wires?
I'm interested in JPS wire because I need only 20' for three outlets from the sub panel.
Thank you very much.
DT
worldcup86
lak's avatar
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lak
4,674 posts
 
I have never used/heard the JPS AC wire. I priced it once and it was very expensive. Here is some information from one of my posts on Audiogon (another similar topic).

“I have experimented over the last 6 months with various wires to use for dedicated 20-amp circuits. I have the following wire in use in no special order:
1) 10 gage Romex
2) 10 gage UV
3) Belden 83802
4) Virtual Dynamics 10 gage BX Cryogenically treated with Cryo’d circuit breaker. *

I have not tried the following but I’m sure it works, 10 gage solid THHN (white/black/green) manually (electric drill) spiral twist and snake through conduit.

To my ears on my revealing system I hear NO difference between (1-4)! I think simply using a dedicated circuit with 10 gage copper makes the biggest difference.

I hope all that read this find it helpful, it’s cost me about $500 (out of my own pocket) to complete the testing for my own peace of mind.

* There might be other positive factors to using cryogenically treated wiring besides sonics. It might lower the operating temperature of equipment.
worldcup86 OP
68 posts
 
Hi,
Sorry, I made a mistake. I was confused between Virtual Dynamics and JPS AC wire. The Virtual Dynamics is $3.5/foot, and JPS is $18/foot. I planed to call VD this morning but instead calling JPS. That is why I know JPS AC wire is $18/foot. However, the man that I talked to is very very nice. His system and mine is exactly the same. I'll try JPS cable when my room is done, and who know I may sell my NBS cable to switch to JPS.
Happy listining!
DT
infinity_audio
186 posts
 
240V are compatible with 120V, I SUGGEST YOU TO GET A CONTRACTOR TO DO IT. Dont burn yourself crispy! Well, as the other mentioned, yu can run the wires first to save! BUT even running wires will have a certain pattern, you cant just run it! Otherwise insurance company will not accept your claim if anything hapened! Also when people come check, you gonna get a summon and you have to take it off. The wires has to go around the frame and wood beans on top and go down along with a metal/wood wall beam. Many many other rules, JUST GET A CONTRACTOR TO DO IT!
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