{"product_id":"toggle-switch-spdt-double-momentary-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 momentary three-position control for marine electrical applications. With momentary ON positions on both sides of a center OFF position, it is commonly used as a labeled dimmer control.\u003c\/p\u003e\n\u003cp\u003eThis single-pole, double-throw switch uses three quick-connect terminals and is designed to provide momentary control of two circuit paths. The parentheses around both ON positions indicate that each ON position is momentary and returns to OFF when released.\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 select between two different circuit paths or accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn\/Off\/On:\u003c\/strong\u003e A three-position switch with two ON positions and a center OFF position.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMomentary Three-Position Control\u003c\/h2\u003e\n\u003cp\u003eThe (ON)-OFF-(ON) configuration provides momentary activation in either direction. Both ON positions are momentary, while the center position is OFF. Blue Sea Systems identifies this configuration for labeled dimmer applications.\u003c\/p\u003e\n\u003ch2\u003eDesigned for Labeled Dimmer Applications\u003c\/h2\u003e\n\u003cp\u003eThis SPDT momentary switch is commonly used as a labeled dimmer control, where one momentary direction can provide one control input and the opposite direction can provide another. For dimming systems that require a dedicated dimmer controller, compatibility with the specific control system should be confirmed before installation. Blue Sea Systems lists this switch configuration for use with its dimmer systems.\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;\"\u003e(ON)-OFF-(ON), Momentary ON in both directions\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;\"\u003eLabeled dimmer\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);\"\u003e4154\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\u003eQuick-Connect Terminals\u003c\/h2\u003e\n\u003cp\u003eThe switch features three 0.25-inch (6.35 mm) quick-connect tab terminals for straightforward connection to compatible wiring. The three-terminal arrangement corresponds to its SPDT configuration.\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\u003ch2\u003eMomentary Operation\u003c\/h2\u003e\n\u003cp\u003eUnlike a maintained ON-OFF-ON switch, this model returns to the center OFF position after the toggle is released from either ON direction. This makes it appropriate for applications where the control input needs to be activated only while the switch is being held.\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 (ON)-OFF-(ON) mean?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003eIt means the switch has two momentary ON positions with an OFF position in the center. When the toggle is released from either ON position, it returns to OFF.\u003c\/div\u003e\n\u003c\/details\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 stands for Single Pole, Double Throw. This three-terminal configuration allows one common circuit connection to be switched between two circuit paths.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-item\" open=\"\"\u003e\n\u003csummary\u003eWhat is this switch commonly used for?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003eThe specified common application is a labeled dimmer. Blue Sea Systems also identifies the (ON)-OFF-(ON) configuration for dimmer control applications. \u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-item\" open=\"\"\u003e\n\u003csummary\u003eDoes this switch stay ON when released?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003eNo. Both ON positions are momentary. Releasing the toggle allows it to return to the center OFF position.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-item\" open=\"\"\u003e\n\u003csummary\u003eHow many terminals does this switch have?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003eIt has three quick-connect tab terminals, each with a terminal size of 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 application.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-item\" open=\"\"\u003e\n\u003csummary\u003eCan this switch be used with a dimmer controller?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003eIt is listed as a labeled dimmer application. For systems using a separate dimmer controller, verify that the switch configuration is compatible with the controller before installation. Blue Sea Systems lists its related dimmer control switches for use with the Deckhand Dimmer.\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Blue Sea Systems","offers":[{"title":"Default Title","offer_id":52549902532828,"sku":"225D-TG4","price":16.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/0496\/9948\/files\/Toggle_Switch_ON_-OFF-_ON_Momentary.png?v=1789691964","url":"https:\/\/www.technoexpress.com\/products\/toggle-switch-spdt-double-momentary-on-off-on","provider":"Techno Express ","version":"1.0","type":"link"}