question about welding wire

[93_Az_TransAm 10+ year member]

It's got some serious girth..

Thats what she said!

Lol sorry but is that the mcm wire? Thats like what 4/0?

 

[adulbrich 5,000+ posts]

Thats what she said!
Lol sorry but is that the mcm wire? Thats like what 4/0?

Bigger than 4/0.

Kinda makes your manhood feel obsolete

 

[Jduane]

ultraflex welding cable 2/0 is 36 gauge copper and more flexible than any ca wire I've used. but its a little more.

 

[Popwarhomie 5,000+ posts]

I'm finna' get me some 500 MCM, whatever that is..
695 amps! //content.invisioncic.com/y282845/emoticons/scared.gif.f134e57c6c93ccd0f15aa5ac32c7d4a0.gif

Thats it?

Sky high 2/0 OFC and KNU 4/0 OFC is good for 700.

500 mcm is 7/0 IIRC.

 

[adulbrich 5,000+ posts]

Thats it? Sky high 2/0 OFC and KNU 4/0 OFC is good for 700.

500 mcm is 7/0 IIRC.

Thought it was only good for 600

 

[Popwarhomie 5,000+ posts]

Thought it was only good for 600

KNU says 700 on their site and I'm pretty sure Jon said 700 on his wire too.

 

[Ramrod 10+ year member]

Here is some 1/0 Wire.. From left to right

Mechman Alt. 1/0 CCA first 2

NVX 1/0 OFC Middle 2

Last one is Trystar 1/0 Weld cable

 

[93_Az_TransAm 10+ year member]

The try star looks a hair smaller but looks more... Coppery lol

 

[Boominburban 10+ year member]

Thats it? Sky high 2/0 OFC and KNU 4/0 OFC is good for 700.

500 mcm is 7/0 IIRC.

And how is SH and KNU rating their cable. Welding cable ampacity is rated at 100'+ lengths ....

 

[los33 10+ year member]

And how is SH and KNU rating their cable. Welding cable ampacity is rated at 100'+ lengths ....

SH will not do rated power on a sine wave nor knu as they rate there wire on a maximum amperage for a certain time frame while welding does heat test in time frames.

Sent from my Z970 using Tapatalk

 

[Boominburban 10+ year member]

Read the chart .... amp draw @ duty cycle @ ft of cable @ sec voltage. Which in a avg welder is DC from 10 - 50v

SO, if you want to run 400 amps 100% of the time, 24/7 you would need to run 3/0 up to 50', prob get away with 2/0 if under 25' ... But who pulls 400 amps 100% of the day ????

 

[adulbrich 5,000+ posts]

Loooooong burp runs, lol JK

 

[93_Az_TransAm 10+ year member]

Sooo what does all that mean?

 

[adulbrich 5,000+ posts]

Use the biggest wire that will fit in your amp, and try to keep runs as short as possible. Make good solid connections, and you'll be fine.

 

[Boominburban 10+ year member]

think of duty cycle as like how long something is on drawing current.

60% duty cycle would be like having your stereo at 100% full tilt boogie 60% of the day