{"product_id":"perko-8521dp-dual-battery-selector-switch-with-mounting-ring-and-legs-bulkhead-mount","title":"Perko 8521DP Dual Battery Selector Switch with Mounting Ring and Legs, Bulkhead Mount","description":"\u003cp\u003e\u003cstrong\u003eDual Battery Switch w\/Mounting Ring  Legs - Bulkhead Mount\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Perko Dual Battery Selector Switch allows the addition of an extra battery for accessories. This switch provides the flexibility of selection between batteries or combined operation of both batteries in parallel for starting or charging. It can also serve as an emergency main disconnect switch in the event of an electrical problem. All models are make before break design and are ignition protected.\u003c\/p\u003e\u003cp\u003eFour switch positions: Both \"Off\", Both \"On\", Battery 1 \"On\"\/Battery 2 \"Off\", Battery 1 \"Off\"\/Battery 2 \"On\"\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMaterials  Finish\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRed polycarbonate polymer body\u003c\/li\u003e\n\u003cli\u003eBlack polymer actuator key\u003c\/li\u003e\n\u003cli\u003eNickel plated terminals\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFor two or more batteries\u003c\/li\u003e\n\u003cli\u003eUnique oval shape mounts in a round hole\u003c\/li\u003e\n\u003cli\u003eRemovable actuator key\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTechnical Information\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRating: 140 Amps Continuous, 200 Amps 5 Min. Intermittent, 250 Amps 30 Second Start\u003c\/li\u003e\n\u003cli\u003eFor use with alternators and generators 6-50 V.D.C. Marine Electrical Systems\u003c\/li\u003e\n\u003cli\u003eIgnition Protected\u003c\/li\u003e\n\u003cli\u003eFace Dimensions: 3-7\/8\" x 3-1\/4\"\u003c\/li\u003e\n\u003c\/ul\u003e \u003c!--- cis2:m2lumZRk ---\u003e\n\u003cp\u003e\u003cstrong\u003ePerko 8521DP Dual Battery Selector Switch\u003c\/strong\u003e provides reliable control for marine electrical systems using two or more batteries. Designed for bulkhead mounting, this battery switch lets you select Battery 1, Battery 2, both batteries in parallel, or the off position. The combined setting supports battery charging and starting flexibility, while the off position can function as an emergency main disconnect during an electrical problem.\u003c\/p\u003e\n\u003cp\u003eThe Perko 8521DP features a make-before-break design that helps prevent interruption when changing between battery selections. Its ignition-protected construction makes it suitable for marine applications with alternators and generators operating from 6 to 50 volts DC. The removable actuator key helps limit unauthorized operation and provides convenient control when the switch is not in use.\u003c\/p\u003e\n\u003cp\u003eBuilt for dependable service, the switch includes a red polycarbonate polymer body, black polymer actuator key, and nickel-plated terminals. Its distinctive oval housing is designed to mount in a round opening, helping simplify installation while providing a clean bulkhead appearance. The switch is rated for 140 amps continuous, 200 amps for 5 minutes intermittently, and 250 amps for 30 seconds during engine starting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerko part number 8521DP\u003c\/strong\u003e is a practical choice for boats requiring selectable battery management, emergency disconnect capability, and durable performance in demanding marine electrical environments.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSupports two or more batteries for selectable or combined operation\u003c\/li\u003e\n\u003cli\u003eFour switch positions: Off, both batteries on, Battery 1 on with Battery 2 off, or Battery 1 off with Battery 2 on\u003c\/li\u003e\n\u003cli\u003eMake-before-break design for smoother battery selection changes\u003c\/li\u003e\n\u003cli\u003eIgnition-protected for compatible marine electrical systems\u003c\/li\u003e\n\u003cli\u003eRated for 140 amps continuous, 200 amps for 5 minutes intermittent, and 250 amps for 30 seconds during starting\u003c\/li\u003e\n\u003cli\u003eCompatible with alternators and generators operating from 6 to 50 volts DC\u003c\/li\u003e\n\u003cli\u003eUnique oval housing mounts in a round opening\u003c\/li\u003e\n\u003cli\u003eRemovable actuator key helps control switch access\u003c\/li\u003e\n\u003cli\u003eRed polycarbonate polymer body with black polymer actuator key\u003c\/li\u003e\n\u003cli\u003eNickel-plated terminals for durable electrical connections\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Perko","offers":[{"title":"Default Title","offer_id":67802223149241,"sku":"69972","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/69972XL.jpg?v=1792445356","url":"https:\/\/atticusgoods.com\/products\/perko-8521dp-dual-battery-selector-switch-with-mounting-ring-and-legs-bulkhead-mount","provider":"Atticus Goods","version":"1.0","type":"link"}