I just purchased a Lincoln Pro Mig 175. In the docs is says to use a "40 super lag" fuse or circuit breaker. I know about slow blow fuses, but is there any such thing as a "slow blow" circuit breaker (which is what I assume this means). If so, does anyone have a brand name and part number? I've looked and asked everywhere including Graybar and Grainger. Everyone looks at me like I've got a horn growing out of my head! Any help would be appreciated. Thanks.