{"product_id":"sea-dog-420128-1-lighted-dpdt-toggle-switch-on-off-on-15a-12v-dc-sealed-marine-boat-switch","title":"Sea-Dog Lighted DPDT Toggle Switch 420128-1, On\/Off\/On, 8 Blade, 15A 12V","description":"\u003cp\u003eThis Sea-Dog toggle switch, part number 420128-1, is a DPDT (double pole, double throw) On\/Off\/On switch built for marine electrical panels. The toggle bat features a lighted tip that glows white when the switch is in the OFF position and red when switched ON, giving an at-a-glance indication of circuit status even in low light. The switch body has a locking ring and lever seal designed to resist water penetration, making it suitable for use in wet helm stations and cockpit panels. Construction is stamped brass and injection molded nylon, with a polycarbonate toggle lever for added durability against UV and saltwater exposure.\u003c\/p\u003e\u003cp\u003eThe 420128-1 is rated 15 Amps at 12 Volts DC, matching typical 12-volt marine accessory circuits such as lighting, bilge pumps, and other onboard electronics wired through a switch panel. It fits panels up to 1\/4 inch thick and requires a 15\/32 inch mounting hole for installation, allowing a straightforward panel-mount install without special tools. As a DPDT switch, it carries 8 terminal blades, giving it the extra switching contacts needed to control two separate circuits or a reversing (on\/off\/on) function from a single toggle, unlike the simpler SPDT switches in the same family.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sea-Dog\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 420128-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch Type:\u003c\/strong\u003e DPDT (Double Pole, Double Throw), Toggle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitching Function:\u003c\/strong\u003e On\/Off\/On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Terminal Blades:\u003c\/strong\u003e 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Rating:\u003c\/strong\u003e 15 Amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 12 Volts DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Hole Diameter:\u003c\/strong\u003e 15\/32 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Panel Thickness:\u003c\/strong\u003e 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eToggle Illumination:\u003c\/strong\u003e Lighted tip, white when OFF, red when ON\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stamped brass and injection molded nylon body with polycarbonate toggle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Resistance Feature:\u003c\/strong\u003e Locking ring and lever seal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.092 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat type of switch is the Sea-Dog 420128-1?\u003c\/strong\u003e The 420128-1 is a DPDT (double pole, double throw) toggle switch with an On\/Off\/On switching function, giving it 8 terminal blades so it can control two circuits or a reversing function from one toggle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this switch have a lighted toggle tip?\u003c\/strong\u003e Yes, the toggle bat on the 420128-1 is lighted: it shows white when the switch is in the OFF position and red when it is switched ON, so you can see circuit status at a glance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size mounting hole do I need to install this switch?\u003c\/strong\u003e The Sea-Dog 420128-1 requires a 15\/32 inch mounting hole and fits panels up to 1\/4 inch thick.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the amp and voltage rating of the 420128-1 toggle switch?\u003c\/strong\u003e This switch is rated 15 Amps at 12 Volts DC, suitable for standard 12-volt marine accessory circuits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the 420128-1 switch made of?\u003c\/strong\u003e It is constructed of stamped brass and injection molded nylon, with a polycarbonate toggle lever for durability in a marine environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this switch sealed against water?\u003c\/strong\u003e The 420128-1 has a locking ring and lever seal designed to resist water penetration, making it suitable for wet marine switch panels.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sea-Dog 420128-1 toggle switch weigh?\u003c\/strong\u003e The 420128-1 weighs 0.092 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is the 420128-1 different from the Sea-Dog 420123-1 or 420125-1 switches?\u003c\/strong\u003e The 420128-1 is a DPDT switch with 8 terminal blades, while the 420123-1 and 420125-1 are SPDT switches with 5 terminal blades; the DPDT design gives the 420128-1 the extra contacts needed to switch two circuits at once.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 420128-1 a momentary switch?\u003c\/strong\u003e No. The 420128-1 is an On\/Off\/On switch, not a momentary type; Sea-Dog's momentary DPDT version in the same lighted toggle series is the 420129-1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does DPDT On\/Off\/On mean for wiring purposes?\u003c\/strong\u003e On the 420128-1, DPDT means the switch controls two separate poles simultaneously, and On\/Off\/On means it has two active positions with a center OFF position, allowing it to be wired for functions like reversing a motor or switching between two circuits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the toggle switch sold as a single unit?\u003c\/strong\u003e Yes, the Sea-Dog 420128-1 is supplied as one complete toggle switch, ready to wire into a 12-volt DC panel.\u003c\/p\u003e","brand":"Sea-Dog","offers":[{"title":"Default Title","offer_id":48988773974235,"sku":"S-D-420128-1","price":28.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/4979_fa214a31-61de-4dc5-820c-b4ad4e51afec.jpg?v=1784429216","url":"https:\/\/www.goodvibesmarina.com\/products\/sea-dog-420128-1-lighted-dpdt-toggle-switch-on-off-on-15a-12v-dc-sealed-marine-boat-switch","provider":"Good Vibes Marina","version":"1.0","type":"link"}