Urgent help: fuse breaker box for dedicated line?

Hi,
I just check the fuse breaker box that has two slots for my dedicated lines in my old room to find out that the last electrician use 240V/60A. So, I think that the fuse beaker box that I've looked for at Home Depot is fine(240V/60A/with 3 slots). I'll shop around to find a fuse breaker box with 4 or more slots because I need al least one or two extra outlets.
The guy who do the job for me is a general contractor. He's expert in building thing but not in electrical stuffs. However, it'll cost me $400-$500 if I call the last electrician, and the price to build the room include everything. I think the job is not hard for him because he just copy the old one. Actualy, I can do the job but I don't want to do it in case something happen he has licensce and I don't.
Thanks for all your helps!
Ps: How's about the JPS AC wire? Is it worth to spend extra money?

WC86: A general contractor is NOT a licensed electrician. They are seperate training, testing, and certification processes. It seems both the general contractor and you are struggling with the proper equipment to specify/supply. Please hire a licensed electrician to do a proper installation. In MN, to get final approval on a building permit would require an approved (seperate) electrical permit.

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.

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

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!