{"product_id":"toggle-switch-spdt-on-off-on","title":"Toggle Switch SPDT - ON-OFF-ON","description":"\u003c!-- Suggested Title (H1, set in Shopify's Title field, not part of this fragment):\n     Toggle Switch SPDT - ON-OFF-ON --\u003e\n\u003cp\u003eThe Toggle Switch SPDT - ON-OFF-ON provides three-position control for marine electrical circuits that need to select between two outputs or operating functions. Its single-pole, double-throw configuration is commonly used for combining navigation lights or an anchor light with independent bulbs.\u003c\/p\u003e\n\u003cp\u003eWith maintained ON positions on both sides of a center OFF position, this switch gives you positive control over two separate circuit paths. The three-terminal design and quick-connect tabs make it suitable for compatible marine wiring applications.\u003c\/p\u003e\n\u003ch2\u003eMaintained vs. Momentary Switches\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintained:\u003c\/strong\u003e Stays in the selected \"On\" or \"Off\" position until you flip it back.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMomentary (indicated by parentheses like (On)):\u003c\/strong\u003e Returns to its default position via a spring as soon as you let go; used for temporary actions like horns or starter buttons.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCommon Configurations\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSPST (Single Pole, Single Throw):\u003c\/strong\u003e A simple two-terminal switch used to control one circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSPDT (Single Pole, Double Throw):\u003c\/strong\u003e A three-terminal switch that can alternate power between two different circuits or accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn\/Off\/On:\u003c\/strong\u003e A three-position switch that can select between two circuit paths with an OFF position in the center.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eThree-Position Circuit Control\u003c\/h2\u003e\n\u003cp\u003eThe ON-OFF-ON action provides two maintained ON positions separated by a center OFF position. This configuration allows one switch to select between two circuit paths and is commonly used in marine navigation-light applications with independent bulbs. Blue Sea Systems lists SPDT ON-OFF-ON switching for navigation lights using independent bulbs. :contentReference[oaicite:0]{index=0}\u003c\/p\u003e\n\u003ch2\u003eQuick-Connect Terminals\u003c\/h2\u003e\n\u003cp\u003eThree 0.25-inch (6.35 mm) quick-connect tab terminals provide the connections required by the SPDT configuration. The switch should be wired using appropriately sized fuses and wire for the specific electrical load.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%; max-width: 600px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; padding: 6px 10px; border: 1px solid #ddd; background-color: #f5f5f5; width: 28%;\"\u003eAttribute\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 6px 10px; border: 1px solid #ddd; background-color: #f5f5f5;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eAction\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eON-OFF-ON\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003ePole \/ Throw\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eSPDT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003ePoles\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eCommon Applications\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eCombining nav lights or anchor light with independent bulbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eMaximum Amperage\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e15A @ 125V AC; 15A @ 12V DC; 10A @ 250V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eTerminal Type\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eQuick Connect Tab\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eNumber of Terminals\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eTerminal Size\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e0.25 in (6.35 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid #ddd;\"\u003e0.10 lb (0.05 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid rgb(221, 221, 221);\"\u003eMPN\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 10px; border: 1px solid rgb(221, 221, 221);\"\u003e4152\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"height: 28px;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eMarine Navigation-Light Applications\u003c\/h2\u003e\n\u003cp\u003eThe ON-OFF-ON SPDT configuration is particularly useful for selecting between navigation-light and anchor-light circuits when the lights use independent bulbs. Blue Sea Systems identifies this switching arrangement as a common navigation-light application. \u003c\/p\u003e\n\u003ch2\u003eElectrical Ratings\u003c\/h2\u003e\n\u003cp\u003eThe switch is rated for up to 15A at 12V DC and 125V AC, and up to 10A at 250V AC. Maximum amperage ratings depend on using appropriately sized fuses and wire for the specific application.\u003c\/p\u003e\n\u003cstyle\u003e\n.faq-accordion { max-width: 700px; margin-top: 10px; }\n.faq-accordion h2 { font-size: 22px; margin-bottom: 14px; }\n.faq-item { background: #f5f5f5; border-radius: 30px; margin-bottom: 10px; overflow: hidden; }\n.faq-item summary { cursor: pointer; list-style: none; padding: 14px 20px; font-weight: 600; color: #1a3d7c; display: flex; align-items: center; gap: 10px; }\n.faq-item summary::-webkit-details-marker { display: none; }\n.faq-item summary::before { content: \"+\"; font-size: 18px; font-weight: bold; color: #333; flex-shrink: 0; }\n.faq-item[open] summary::before { content: \"\\2212\"; }\n.faq-item[open] summary { background: #1a3d7c; color: #ffffff; border-radius: 30px 30px 0 0; }\n.faq-item[open] summary::before { color: #e67e22; }\n.faq-answer { padding: 14px 20px 18px 40px; color: #333; font-size: 14px; line-height: 1.5; }\n\u003c\/style\u003e\n\u003cdiv class=\"faq-accordion\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails class=\"faq-item\" open=\"\"\u003e\n\u003csummary\u003eWhat does SPDT mean on this toggle switch?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003eSPDT means Single Pole, Double Throw. It uses one pole with two selectable circuit paths, with this switch providing ON-OFF-ON operation through three terminals.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-item\" open=\"\"\u003e\n\u003csummary\u003eWhat does ON-OFF-ON mean?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003eON-OFF-ON indicates three maintained positions: one ON position, a center OFF position, and a second ON position. The switch can select between two circuit paths while providing an OFF position in the center.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-item\" open=\"\"\u003e\n\u003csummary\u003eWhat are common uses for an SPDT ON-OFF-ON marine switch?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003eA common application is combining navigation lights or an anchor light with independent bulbs. Blue Sea Systems lists SPDT ON-OFF-ON as a navigation-light switching configuration for independent bulbs.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-item\" open=\"\"\u003e\n\u003csummary\u003eHow many terminals does this SPDT switch have?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003eThis switch has three quick-connect tab terminals, each measuring 0.25 inch (6.35 mm).\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-item\" open=\"\"\u003e\n\u003csummary\u003eWhat is the maximum amperage rating?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003eThe specified ratings are 15A at 12V DC, 15A at 125V AC, and 10A at 250V AC. Appropriately sized fuses and wire should be used for the specific application.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-item\" open=\"\"\u003e\n\u003csummary\u003eIs the ON-OFF-ON action momentary?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003eNo. The supplied specification lists ON-OFF-ON without parentheses, so both ON positions are maintained rather than momentary.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-item\" open=\"\"\u003e\n\u003csummary\u003eWhat type of terminals does this switch use?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003eIt uses three quick-connect tab terminals with a 0.25-inch (6.35 mm) terminal size.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Blue Sea Systems","offers":[{"title":"Default Title","offer_id":52549804884188,"sku":"225D-TG3","price":16.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0496\/9948\/files\/Toggle_Switch_ON-OFF-ON.png?v=1789691964","url":"https:\/\/www.technoexpress.com\/products\/toggle-switch-spdt-on-off-on","provider":"Techno Express ","version":"1.0","type":"link"}