Rated the top standard-duty switch by Powerboat Reports*
Rated 350A continuous/600A Intermittent/2000A cranking with the new Engine Starting Standard. Tin-plated copper terminals are 3/8" for better conductivity. Tactile indicators for safe operation in low light. Surface mount with four 1/4" fasteners on 3" centers or flush mount in a 3 5/8" hole. Fits in same hole pattern as other popular model battery switches.
*"Blue Sea Systems' switch (9001E) is our choice for best value in a standard-duty battery selector switch. It's made in the U.S. with high grade materials, comes with a lifetime warranty, and is the least expensive switch in out test." Powerboat Reports, June 2005Manufacturer's Documents.