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Blue Sea 3003 HD-Series Battery Switch Selector w/Alternator Field Disconnect 
$ 110.99$ 156.51
3003 HD-Series Battery Switch Selector with Alternator Field Disconnect
500 Ampere Continuous Rating
Accepts 4/0 battery cables
Ignition protected - safe for installation aboard gasoline powered boats
.870" (22.01mm) stud length to accept 4 or more cable terminals
1/2" (M12) Tin-plated copper studs for maximum conductivity and corrosion resistance
Meets American Boat and Yacht Council (ABYC) requirements for battery switches
Tactile textures indicate knob position by feel only
Case design allows surface or rear panel mounting
Fits all Perko and Guest low amperage battery switch hole patterns
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.