Quote Originally Posted by Tacoma747 View Post
This could kind of be looked at like the duty cycle right? I have had it explained to me that with a 60% duty cycle, you need to let it cool for 40% of the time, so, if you weld solid for 6 minutes, let it cool for 4 minutes. Never hurts to go over that though I am sure.
Duty cycle is typically measured in 10 minute blocks, so you have it exactly right. Max weld time is 6 minutes with a 4 minute cool down in any 10 minute period. For example 3 on, 2 off, 3 on, 2 off, etc...
If you go over the duty cycle it is not good on the equipment. Even with protection devices, it's never good to trip them on a regular basis.