A50QS400-4 - Ferraz Shawmut 500V 400A Fuse May 8, 2010 23:43:55 GMT -3 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by vmrod on May 8, 2010 23:43:55 GMT -3 My main fuse is the A50QS400-4 - Ferraz Shawmut 500V 400A Fast Acting Amp-Trap FuseFound it for a good price here;www.discountfuse.com/A50QS400_4_p/a50qs400-4.htmAlthough I don't think I need this mount, there's a nice, simple one here; (bottom of page)www.evsource.com/tls_fuse_holders.php