12 Volt DC Power Circuit Breaker, 40 Amp Amp Rating

Part#: B40A

 Auto re-set when trips, if over loaded. Protects your wire system from overloads.
 

Has two 1/4" holes, spaced 1-9/16" center to center, for mounting 
Mount ears 2" wide overall
1 -5/16" long
1 1/4" tall overall
Two #10 studs, 9/16" tall, spaced 11/16" center to center. (nuts and lock washers included)