That one looks pretty heavy duty. Says it's rated at 75A. Has screw terminals on the load side rather than spades, so yes, I'd say it would work well for a main relay.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
