{"product_id":"dpst-toggle-switch-4-pin-15a-250vac-on-off-e-ten-1221","title":"DPST Toggle Switch 4 Pin 15A 250VAC On\/Off 2-Position — E-TEN 1221 (Car, Boat, Panel)","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right quantity for my project?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For a single control panel or one-off repair, 1 or 2 pcs is typically sufficient. For wiring multiple circuits in a boat, RV, or automotive build, ordering 4–10 pcs at once reduces per-unit cost and ensures you have spares on hand.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What does DPST mean and how does it affect wiring?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"DPST stands for Double Pole Single Throw. It controls two separate circuits simultaneously with one switch action. Each pole has an input and output terminal, giving you 4 pins total. This is commonly used when you need to switch both the live and neutral lines together for safety.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can this switch handle 15A at 120VAC (US household voltage)?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The switch is rated 15A at 250VAC, which means it can generally handle 15A at 120VAC as well. Always verify the load current of your specific application does not exceed the rated amperage.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this toggle switch suitable for outdoor or marine use?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This switch is designed for panel-mount use in cars, boats, and RVs. It is not inherently waterproof. For exposed outdoor or marine environments, we recommend installing it inside a weatherproof enclosure or using a sealed boot cover to protect the terminals.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What panel cutout size does the E-TEN 1221 require?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The E-TEN 1221 footprint typically requires a rectangular panel cutout of approximately 19.8mm × 12.9mm (≈0.78\\\" × 0.51\\\"). Always measure your panel and confirm against the datasheet before cutting.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I identify which pins are which on a 4-pin DPST toggle switch?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"On a standard 4-pin DPST switch, pins are arranged in two rows of two. Each row represents one pole: the top two pins are Pole 1 (input + output) and the bottom two are Pole 2 (input + output). Use a multimeter in continuity mode to confirm which pins connect when the switch is in the ON position.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I use this switch for DC circuits in automotive applications?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Toggle switches rated for AC loads generally work in low-voltage DC circuits (12V–24V) at equivalent or lower amperage. For automotive 12V DC use, this switch can typically handle the rated 15A load. Confirm your circuit's actual draw before installation.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003eDPST Toggle Switch 4 Pin 15A 250VAC — Reliable On\/Off Control for Car, Boat \u0026amp; Panel Builds\u003c\/h2\u003e\n    \u003cp\u003eWhether you're wiring a custom marine console, building an automotive fuse panel, or replacing a failed switch in an RV control box, finding a toggle switch that fits the E-TEN 1221 footprint and handles real electrical loads without overheating is harder than it should be. This 4-pin DPST toggle switch is built for makers, auto electricians, boat builders, and DIY panel wiring enthusiasts who need a dependable on\/off switch that installs cleanly and stays put.\u003c\/p\u003e\n    \u003cp\u003eEach switch features a 2-position (ON\/OFF) Double Pole Single Throw (DPST) mechanism with 4 solder or quick-connect terminals. The switch is rated at \u003cstrong\u003e15A \/ 250VAC\u003c\/strong\u003e and follows the \u003cstrong\u003eE-TEN 1221\u003c\/strong\u003e form factor for drop-in replacement compatibility. Available in quantities of 1, 2, 4, 6, or 10 pieces per order — ideal for single repairs or multi-circuit panel builds.\u003c\/p\u003e\n    \u003cp\u003eTypical use cases include automotive accessory switching (lights, fans, pumps), marine control panels on sailboats and powerboats, RV and camper van electrical builds, and industrial control enclosures where a compact DPST toggle switch for panel mounting is required.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003e🔌\u003c\/span\u003e\n    \u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct replacement for E-TEN 1221 footprint switches. Fits standard rectangular panel cutouts (approximately 19.8mm × 12.9mm \/ ≈0.78\" × 0.51\"). Verify your panel cutout dimensions before ordering.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These DPST 4-Pin Toggle Switches\u003c\/h2\u003e\n  \u003cul class=\"hdiy-features\"\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e15A \/ 250VAC Rated\u003c\/strong\u003e — Handles demanding loads including lighting circuits, bilge pumps, and auxiliary fans without nuisance tripping in 12V DC or 120–250VAC panel applications.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔀\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eDPST Double-Pole Design\u003c\/strong\u003e — Simultaneously switches two independent circuits with one lever action, making it the right choice for applications where both live and neutral lines must be interrupted together.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eE-TEN 1221 Form Factor\u003c\/strong\u003e — Matches the industry-standard E-TEN 1221 footprint for straightforward drop-in replacement in existing panels without re-cutting or adapters.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e4-Pin Solder\/Quick-Connect Terminals\u003c\/strong\u003e — Clearly arranged terminal layout simplifies wiring for automotive toggle switch panel builds and reduces the chance of miswiring during installation.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🚤\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eVersatile Application Range\u003c\/strong\u003e — Suited for car, boat, RV, and industrial control panel use — anywhere a compact 2-position on\/off toggle switch for panel mounting is needed.\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eFlexible Pack Sizes\u003c\/strong\u003e — Order 1 to 10 pieces to match your project scope, with per-unit cost decreasing at higher quantities — practical for both one-off repairs and production panel builds.\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — DPST Toggle Switch E-TEN 1221\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eSwitch Type\u003c\/th\u003e\n\u003ctd\u003eToggle Switch, 2-Position (ON\/OFF)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePole Configuration\u003c\/th\u003e\n\u003ctd\u003eDPST (Double Pole Single Throw)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eNumber of Pins\u003c\/th\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eVoltage Rating\u003c\/th\u003e\n\u003ctd\u003e250VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCurrent Rating\u003c\/th\u003e\n\u003ctd\u003e15A\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eModel \/ Footprint\u003c\/th\u003e\n\u003ctd\u003eE-TEN 1221\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePanel Cutout (approx.)\u003c\/th\u003e\n\u003ctd\u003e19.8mm × 12.9mm (≈0.78\" × 0.51\")\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eTerminal Type\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eBody Material\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eActuator Color\u003c\/th\u003e\n\u003ctd\u003eSee variant options \/ Contact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMounting Style\u003c\/th\u003e\n\u003ctd\u003ePanel Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eQuantity Options\u003c\/th\u003e\n\u003ctd\u003e1 \/ 2 \/ 4 \/ 6 \/ 10 pcs per order\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-note\"\u003e\n    \u003cspan class=\"hdiy-note-icon\"\u003e⚠️\u003c\/span\u003e\n    \u003cstrong\u003eSpec Confirmation:\u003c\/strong\u003e Terminal type, body material, and actuator color may vary by production batch. If your application has strict requirements, please contact us before ordering to confirm current stock specifications.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-faq\"\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right quantity for my project?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eFor a single control panel or one-off repair, 1 or 2 pcs is typically sufficient. For wiring multiple circuits in a boat, RV, or automotive build, ordering 4–10 pcs at once reduces per-unit cost and ensures you have spares on hand. In most cases, experienced builders order at least 2 extra to account for testing and future replacements.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat does DPST mean and how does it affect wiring?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eDPST stands for Double Pole Single Throw. It controls two separate circuits simultaneously with one switch action. Each pole has an input and output terminal, giving you 4 pins total. This is commonly used when you need to switch both the live and neutral lines together for safety — for example, in 240VAC appliance circuits or dual-battery automotive setups.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan this switch handle 15A at 120VAC (US household voltage)?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. The switch is rated 15A at 250VAC, which means it can generally handle 15A at 120VAC as well. Always verify the load current of your specific application does not exceed the rated amperage. For inductive loads (motors, pumps), derate by approximately 20–25% as a general rule.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs this toggle switch suitable for outdoor or marine use?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThis switch is designed for panel-mount use in cars, boats, and RVs. It is not inherently waterproof or IP-rated. For exposed outdoor or marine environments, we recommend installing it inside a weatherproof enclosure or using a sealed rubber boot cover over the actuator to protect the terminals from moisture and salt spray.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat panel cutout size does the E-TEN 1221 require?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThe E-TEN 1221 footprint typically requires a rectangular panel cutout of approximately 19.8mm × 12.9mm (≈0.78\" × 0.51\"). Always measure your existing panel opening or use a template before cutting new material. If you are replacing an existing E-TEN 1221 switch, it should drop in without modification.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I identify which pins are which on a 4-pin DPST toggle switch?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eOn a standard 4-pin DPST switch, pins are arranged in two rows of two. Each row represents one pole: the top two pins are Pole 1 (input + output) and the bottom two are Pole 2 (input + output). Use a multimeter in continuity mode with the switch in the ON position to confirm which pins are connected before soldering or crimping your wires.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I use this switch for DC circuits in automotive applications?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. Toggle switches rated for AC loads generally perform well in low-voltage DC circuits (12V–24V) at equivalent or lower amperage. For automotive 12V DC use, this switch can typically handle the rated 15A load. Confirm your circuit's actual current draw — including startup surge for motors — before installation.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your quantity above, then add to cart — ships from our US warehouse.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"1","offer_id":52331302781202,"sku":"GLFBLFFBEM00562x1","price":8.83,"currency_code":"USD","in_stock":true},{"title":"2","offer_id":52331302813970,"sku":"GLFBLFFBEM00562x2","price":14.54,"currency_code":"USD","in_stock":true},{"title":"4","offer_id":52331302846738,"sku":"GLFBLFFBEM00562x4","price":26.91,"currency_code":"USD","in_stock":true},{"title":"6","offer_id":52331302879506,"sku":"GLFBLFFBEM00562x6","price":39.29,"currency_code":"USD","in_stock":true},{"title":"10","offer_id":52331302912274,"sku":"GLFBLFFBEM00562x10","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-05_3b7f87c4-15fa-41f1-9b5f-56126a7486b2.jpg?v=1780900098","url":"https:\/\/homediyer.com\/products\/dpst-toggle-switch-4-pin-15a-250vac-on-off-e-ten-1221","provider":"HomeDIYer","version":"1.0","type":"link"}