{"product_id":"4-pin-rocker-switch-kcd4","title":"4 Pin Rocker Switch Stainless Steel Surface KCD4 Waterproof Rocker Switch CE Certified FILN Factory","description":"\u003cdiv style=\"font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; max-width: 1000px; margin: 0 auto; padding: 10px;\"\u003e\n\u003cdiv style=\"margin-top: 20px; margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"border-bottom: 2px solid #1a73e8; margin-bottom: 15px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; margin: 0; padding-bottom: 5px;\"\u003eRocker Switch Drawing\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/Framed_4_Pin_Waterproof_Rocker_Switch_Drawing.webp?v=1777367822\" alt=\"Rocker Switch Drawing\" style=\"max-width: 100%; height: auto; border-radius: 4px;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 40px;\"\u003e\n\u003cdiv style=\"border-bottom: 2px solid #1a73e8; margin-bottom: 15px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003eWhat is a 4 Pin Rocker Switch?\u003c\/h2\u003e\n\u003cp style=\"margin-top: 10px;\"\u003eA \u003cstrong\u003e4 pin rocker switch\u003c\/strong\u003e is a high-capacity electromechanical switch used to control the power supply of industrial and consumer devices. This \u003cstrong\u003eKCD4 series\u003c\/strong\u003e model features a \u003cstrong\u003estainless steel surface\u003c\/strong\u003e, providing a premium aesthetic and extreme durability. As a Double Pole Single Throw (DPST) device, it can simultaneously cut off both the live and neutral lines, ensuring maximum electrical safety. The integrated LED offers immediate visual confirmation of the \"ON\" status, which is critical for complex machinery operations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 40px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003eIndustrial Product Overview\u003c\/h2\u003e\n\u003cp style=\"margin-top: 10px;\"\u003eThe FILN \u003cstrong\u003eFL3-KCD4-0123-23\u003c\/strong\u003e is a market-leading \u003cstrong\u003e4 pin rocker switch\u003c\/strong\u003e engineered with a unique \u003cstrong\u003estainless steel actuator surface\u003c\/strong\u003e. This rectangular \u003cstrong\u003e30x22mm\u003c\/strong\u003e switch is not only more fashionable than standard plastic models but also significantly easier to clean and maintain in medical or food-processing environments. It is a \u003cstrong\u003eframed rocker switch\u003c\/strong\u003e designed for \u003cstrong\u003esnap-in installation\u003c\/strong\u003e, offering an \u003cstrong\u003eIP65 waterproof\u003c\/strong\u003e rating for outdoor and humid applications. Certified by \u003cstrong\u003eISO9001, CE, VDE, RoHS, SGS, UL\u003c\/strong\u003e, it supports custom voltages from \u003cstrong\u003e5-24V to 110-220V\u003c\/strong\u003e and comes in RGYBW LED colors. Whether for a high-end appliance or heavy machinery, this KCD4 switch ensures long-term reliability and a high-end industrial finish.\u003c\/p\u003e\n\u003cdiv style=\"border: 2px solid #28a745; padding: 15px; border-radius: 8px; text-align: center; margin: 25px 0;\"\u003e\u003ca style=\"color: #28a745; font-weight: bold; text-decoration: none; font-size: 18px; display: block;\" href=\"https:\/\/www.cnfiln.com\/collections\/rocker-switch\" target=\"_blank\"\u003e View All Professional Rocker Switch Collections →\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 40px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003eComparison of 2-Position Switch Functions\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-size: 14px; margin-top: 15px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eSwitch Function\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eOperation Logic\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eCommon Application\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eLatching ON-OFF\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eRemains in the selected position (Stay-put).\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eMain power switches for appliances, heaters, and tools.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cstrong\u003eMomentary (ON)-OFF\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eReturns to the original position when released.\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eReset buttons, horn triggers, and motor starting.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 40px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003eQuick Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-size: 14px; margin-top: 15px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; background-color: #f8f9fa; font-weight: bold; width: 30%;\"\u003eModel Number\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eFL3-KCD4-0123-23\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; background-color: #f8f9fa; font-weight: bold;\"\u003eMounting Size\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e30mm x 22mm (1.18\" x 0.86\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; background-color: #f8f9fa; font-weight: bold;\"\u003eSwitch Function\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eON-OFF (2 Positions)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; background-color: #f8f9fa; font-weight: bold;\"\u003eLED Illumination\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eYes (Red, Green, Yellow, Blue, White)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; background-color: #f8f9fa; font-weight: bold;\"\u003eActuator Material\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eStainless Steel Surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; background-color: #f8f9fa; font-weight: bold;\"\u003eWiring Connection\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e4 PIN Terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; background-color: #f8f9fa; font-weight: bold;\"\u003eIs it Framed?\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eYes, Framed Design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 40px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003ePerformance Parameters\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-size: 14px; margin-top: 15px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eMain Technology Performance\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eSpecification Details\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eFunction\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eON-OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eRated Voltage\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\n\u003cdiv\u003e\u003cspan\u003e16A 250VAC\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eRated Current\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\n\u003cdiv\u003e\u003cspan\u003e16A 250VAC\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eInitial Contact Resistance\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e≤50mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e≥100mΩ\/500VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eDielectric Strength\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e1500VAC\/5mA 60s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eEndurance\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e10,000 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eAmbient Temperature\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e-40T125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eProtection Degree\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eIP65\/IP66\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eCertifications\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eISO9001, CE, VDE, RoHS, SGS, UL, IP65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"text-align: center; margin-top: 15px;\"\u003e\u003cimg style=\"max-width: 100%; height: auto;\" alt=\"FILN Rocker Switch Certifications\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/Product_Certification.webp?v=1774674312\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 40px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003eComponent Materials\u003c\/h2\u003e\n\u003cdiv style=\"margin-top: 40px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003eTechnical Advantages of the 30A High-Current Rocker Switch\u003c\/h2\u003e\n\u003cp style=\"margin-bottom: 15px;\"\u003eThe FILN 30A High-Current Rocker Switch has been meticulously engineered for high-power loads and extreme durability. Below is a detailed technical comparison highlighting the superior features of our upgraded model:\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-size: 14px; margin-top: 15px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f8f9fa;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px;\"\u003eAccessories Name\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px;\"\u003eMaterial\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eActuator Surface\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eTransparent Sheet\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003ePC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eHolder \/ Up Base\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eABS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eWaterproof Cover\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eRubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eBottom Base\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003ePA66\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003ePin \/ Spring Board\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eH62 Brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eContact\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eAgCdO12 (Silver Alloy)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 25px; font-size: 14px; border: 1px solid #eee;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f4f7fb;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #eee; text-align: left; color: #1a73e8;\"\u003eCore Component\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #eee; text-align: left; color: #1a73e8;\"\u003eUpgrade Description\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #eee; text-align: left; color: #1a73e8;\"\u003ePerformance Benefit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee; font-weight: bold;\"\u003eHousing Structure\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee;\"\u003eSplit Black Housing Design\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee;\"\u003eSuperior structural stability and enhanced sealing for easier installation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee; font-weight: bold;\"\u003eWaterproof Design\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee;\"\u003eOptimized Frame Surface\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee;\"\u003eFits panels more securely, significantly improving waterproof and dustproof ratings.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee; font-weight: bold;\"\u003eIllumination\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee;\"\u003ePremium LED Lamp\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee;\"\u003eLonger lifespan and more uniform illumination compared to traditional neon lamps.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee; font-weight: bold;\"\u003eContact Material\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee;\"\u003eSilver Contacts + 1mm Thick Brass\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee;\"\u003eRated for true 30A loads; provides higher electrical endurance and reliability.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee; font-weight: bold;\"\u003eInner Holder\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee;\"\u003eNew Larger Contact Holder\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee;\"\u003eIncreases contact surface area to reduce heat generation during high-current operation.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee; font-weight: bold;\"\u003eMaterial Grade\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee;\"\u003eImported PA Nylon Material\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #eee;\"\u003eHigh-strength flame retardancy; resists cracking even in high-temperature environments.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #1a73e8; border-left: 5px solid #1a73e8; padding-left: 12px; margin: 25px 0 15px; font-size: 22px; font-weight: bold;\"\u003eApplication \u0026amp; Selection Guide\u003c\/h2\u003e\n\u003cp style=\"margin-bottom: 25px;\"\u003eTo ensure the safety and longevity of your equipment, we recommend the \u003cstrong\u003e30A Upgraded Model\u003c\/strong\u003e for heavy-duty applications such as \u003cstrong\u003eIndustrial Control Panels, Outdoor Portable Power Stations, Marine Systems, and High-Performance Automotive modifications\u003c\/strong\u003e. For standard residential or lower-wattage appliances, our Regular Item remains a high-quality, cost-effective solution.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center; margin-top: 20px;\" class=\"product-image-container\"\u003e\u003cimg style=\"display: block; max-width: 100%; height: auto; margin: 0 auto; border: 1px solid #f0f0f0; border-radius: 4px; box-shadow: 0 4px 10px rgba(0,0,0,0.05);\" alt=\"Advantages of 30A Rocker Switch Technical Comparison\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/Advantages-of-30A-Rocker-Switch.webp?v=1777108466\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 40px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003eThe Advantage of Stainless Steel Surfaces\u003c\/h2\u003e\n\u003cp style=\"margin-top: 10px;\"\u003eThe \u003cstrong\u003estainless steel surface rocker switch\u003c\/strong\u003e offers significant benefits for high-end equipment. Unlike standard plastics, the metal surface is \u003cstrong\u003ehighly resistant to fingerprints and stains\u003c\/strong\u003e, making it incredibly easy to clean and maintain. It provides a \u003cstrong\u003emodern, fashionable look\u003c\/strong\u003e that elevates the quality of medical devices, marine dashboards, and kitchen appliances. In dark or low-visibility environments, the \u003cstrong\u003eilluminated KCD4\u003c\/strong\u003e design shines brightly through the stainless frame, whereas a standard non-illuminated black switch is often chosen for its \"low-profile\" versatility in bright settings.\u003c\/p\u003e\n\u003cimg style=\"width: 100%; height: auto; margin-top: 20px;\" alt=\"High Quality Stainless Steel Rocker Switch\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/high-quality-waterproof-rocker-switch.webp?v=1777108466\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 40px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003eIndustrial Applications\u003c\/h2\u003e\n\u003cp style=\"margin-top: 10px;\"\u003eDue to the \u003cstrong\u003ewaterproof IP65\u003c\/strong\u003e rating and the high-current \u003cstrong\u003e30A capacity\u003c\/strong\u003e, this \u003cstrong\u003e4 pin rocker switch\u003c\/strong\u003e is used everywhere reliable power control is needed:\u003c\/p\u003e\n\u003cul style=\"column-count: 2;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedical Equipment:\u003c\/strong\u003e Easy-to-sanitize control panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome Appliances:\u003c\/strong\u003e High-end coffee machines and ovens.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutdoor Machinery:\u003c\/strong\u003e Pumps and lawn equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial Kitchens:\u003c\/strong\u003e Fryers and mixers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOffice Equipment:\u003c\/strong\u003e PDU and server power controls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cimg style=\"width: 100%; height: auto; margin-top: 20px;\" alt=\"Applications of KCD4 Rocker Switches\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/Application-of-Rocker-Switches.webp?v=1777108480\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 40px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003eStep-by-Step Installation Guide\u003c\/h2\u003e\n\u003col style=\"margin-top: 15px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePanel Cutout:\u003c\/strong\u003e Precise a 30mm x 22mm rectangular opening in your panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Switch:\u003c\/strong\u003e Position the \u003cstrong\u003e4 pin rocker switch\u003c\/strong\u003e from the front of the panel and push downward.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Clips:\u003c\/strong\u003e Ensure the \u003cstrong\u003esnap-in clips\u003c\/strong\u003e on the sides of the switch body lock firmly into the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Connect your wires to the \u003cstrong\u003e4PIN terminals\u003c\/strong\u003e on the back according to the wiring diagram. The framed design ensures a flush, professional fit.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cimg style=\"width: 100%; height: auto; margin-top: 20px;\" alt=\"KCD4 Rocker Switch Installation Steps\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/Rocker-Switch-Installation-Steps.webp?v=177710907\"\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 40px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003e4 Pin Complete Rocker Switch Wiring Diagram and Connection Guide\u003c\/h2\u003e\n\u003cp\u003eA \u003cstrong\u003e4 pin rocker switch wiring diagram\u003c\/strong\u003e is essential for managing higher-current loads or providing clear visual feedback in electrical systems. These switches are typically \u003cstrong\u003eDouble Pole Single Throw (DPST)\u003c\/strong\u003e or specialized single-pole configurations that allow the internal lamp to function independently or in synchronization with the connected device. Depending on your requirements, \u003cstrong\u003erocker switch wiring\u003c\/strong\u003e can be configured for either \"Independent Illumination\" (Always On) or \"Dependent Illumination\" (On when Device is Active).\u003c\/p\u003e\n\u003ch3\u003eOption 1: Light On When Device is Operating (Dependent Illumination)\u003c\/h3\u003e\n\u003cp\u003eThis configuration is ideal when you need a visual status indicator to show that the equipment is currently powered. In this mode, the internal LED only illuminates when the switch is toggled to the \"Press\" position.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Connection:\u003c\/strong\u003e Connect the positive (+) and negative (-) wires from the power source to the \u003cstrong\u003ebottom set of pins\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Connection:\u003c\/strong\u003e Connect the positive and negative terminals of your device to the \u003cstrong\u003etop set of pins\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLogic:\u003c\/strong\u003e When the switch is closed, current flows through the device and simultaneously completes the internal circuit for the LED lamp.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center; margin: 20px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/rocker_switch_wiring.webp?v=1777254975\" alt=\"4 Pin Rocker Switch Wiring Diagram - Dependent Illumination\" style=\"max-width: 100%; height: auto; border: 1px solid #eee; border-radius: 4px; box-shadow: 0 2px 5px rgba(0,0,0,0.1);\"\u003e\n\u003cp style=\"color: #666; font-size: 0.85em; margin-top: 10px;\"\u003e\u003cem\u003eFigure 1: Wiring for LED illumination during device operation.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eOption 2: Switch Light Remains Constantly Lit (Independent Illumination)\u003c\/h3\u003e\n\u003cp\u003eThis setup is useful for locating the switch in dark environments (such as vehicle dashboards or industrial control panels). The internal LED remains on as long as the power source is connected, regardless of the device status.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Connection:\u003c\/strong\u003e Connect the power source positive (+) and negative (-) wires to the \u003cstrong\u003etop set of pins\u003c\/strong\u003e (where the internal lamp is internally bridged).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Connection:\u003c\/strong\u003e Connect the device terminals to the \u003cstrong\u003ebottom set of pins\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLogic:\u003c\/strong\u003e The LED is powered directly by the input line, while the rocker mechanism acts as a gatekeeper only for the current flowing to the device.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center; margin: 20px 0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/4_pin_rocker_switch_wiring_diagram.webp?v=1777255069\" alt=\"4 Pin Rocker Switch Wiring Diagram - Constant Illumination\" style=\"max-width: 100%; height: auto; border: 1px solid #eee; border-radius: 4px; box-shadow: 0 2px 5px rgba(0,0,0,0.1);\"\u003e\n\u003cp style=\"color: #666; font-size: 0.85em; margin-top: 10px;\"\u003e\u003cem\u003eFigure 2: Wiring for constant LED illumination (Switch Finder Mode).\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eComparison of Operation Logic\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin: 20px 0;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 450px; font-family: sans-serif; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f1f3f4; border-bottom: 2px solid #1a73e8;\"\u003e\n\u003cth style=\"padding: 15px; text-align: left; border: 1px solid #ddd;\"\u003eConfiguration Type\u003c\/th\u003e\n\u003cth style=\"padding: 15px; text-align: left; border: 1px solid #ddd;\"\u003eSwitch State\u003c\/th\u003e\n\u003cth style=\"padding: 15px; text-align: left; border: 1px solid #ddd;\"\u003eDevice Status\u003c\/th\u003e\n\u003cth style=\"padding: 15px; text-align: left; border: 1px solid #ddd;\"\u003eLED Status\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDependent (Option 1)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eNormal\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eOFF\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eOFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003ePress\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eON\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eON\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #fafafa;\"\u003e\n\u003ctd rowspan=\"2\" style=\"padding: 12px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eIndependent (Option 2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eNormal\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eOFF\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eON\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003ePress\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eON\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #ddd;\"\u003eON\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTechnical Considerations \u0026amp; Safety Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin Orientation:\u003c\/strong\u003e 4-pin rocker switches usually have two parallel circuits. Ensure you are wiring the positive and negative on the correct pairs to avoid a short circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Matching:\u003c\/strong\u003e Check if the internal lamp is designed for 12V DC or 110V\/220V AC. Using an AC lamp on a DC circuit will result in no light, while the reverse may cause the lamp to explode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage Ratings:\u003c\/strong\u003e Most 4-pin industrial switches (like the KCD4 series) support up to 15A-30A. Verify that your total load does not exceed the manufacturer's specification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTermination:\u003c\/strong\u003e Use high-quality 6.3mm female spade connectors. Ensure they are fully insulated to prevent accidental contact between adjacent terminals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 40px; padding: 25px; background-color: #f0f7ff; border-radius: 10px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003eFILN Factory Direct Advantage\u003c\/h2\u003e\n\u003cp style=\"margin-top: 10px;\"\u003eAs a professional manufacturer, FILN offers direct supply with full customization support for global B2B clients.\u003c\/p\u003e\n\u003cul style=\"column-count: 2;\"\u003e\n\u003cli\u003e\u003cstrong\u003eNo MOQ Requirement\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCustom Wire \u0026amp; Connectors\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFast Global Lead Times\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eISO9001\/UL\/CE Certified\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVoltage: 12V, 24V, 110V, 220V\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"margin-top: 20px;\"\u003e\n\u003ca style=\"background-color: #1a73e8; color: white; padding: 10px 20px; text-decoration: none; border-radius: 5px; font-weight: bold; margin-right: 15px;\" href=\"mailto:inquiry@cnylin.com.cn\"\u003eEmail for Free Samples →\u003c\/a\u003e \u003ca style=\"color: #1a73e8; font-weight: bold; text-decoration: underline;\" href=\"https:\/\/www.filn.com\" target=\"_blank\"\u003eWebsite: www.filn.com\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 15px;\"\u003eContact: \u003ca href=\"mailto:inquiry@cnylin.com.cn\"\u003einquiry@cnylin.com.cn\u003c\/a\u003e\u003c\/p\u003e\n\u003cimg style=\"width: 100%; height: auto; margin-top: 15px; border-radius: 5px;\" alt=\"FILN Factory Overview\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/About_FILN.webp?v=1774851338\"\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"margin-top: 40px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8;\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cdiv style=\"margin-top: 15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: Does this 4 pin rocker switch support 220V AC?\u003c\/strong\u003e\u003cbr\u003eA: Yes, it is rated for up to 30A 250VAC. We can customize the internal LED resistor for 12V, 24V, 110V, or 220V.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Is the 30x22mm cutout a standard size?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the 30x22mm cutout is the industry standard for the KCD4 series large rectangular rocker switches.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: How do I identify the 4 pins on the back?\u003c\/strong\u003e\u003cbr\u003eA: Usually, pins are arranged in pairs. One pair is for input (Line) and the other is for output (Load). Check the diagram on the switch body for exact orientation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: Can I get a blue LED instead of red?\u003c\/strong\u003e\u003cbr\u003eA: Yes, FILN provides RGYBW (Red, Green, Yellow, Blue, White) LED color options for all illuminated switches.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ5: Is this switch latching or momentary?\u003c\/strong\u003e\u003cbr\u003eA: This specific model is a latching ON-OFF switch, meaning it stays in the position you press it until you toggle it again.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ6: Why is the 4 pin rocker switch safer than a 2 pin version?\u003c\/strong\u003e\u003cbr\u003eA: Because it acts as a DPST switch, it can cut off both power lines simultaneously, providing complete circuit isolation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ7: Can the LED light stay ON all the time?\u003c\/strong\u003e\u003cbr\u003eA: Yes, by changing the wiring connection to the input side, the LED can stay on independently of the switch position.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ8: What is the lifespan of this industrial switch?\u003c\/strong\u003e\u003cbr\u003eA: It is rated for at least 10,000 electrical cycles and much higher mechanical cycles under normal conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ9: Does FILN provide custom laser markings on the stainless surface?\u003c\/strong\u003e\u003cbr\u003eA: Yes, we can laser engrave custom symbols or icons on the actuator for better user identification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ10: Is the switch body made of flame-retardant material?\u003c\/strong\u003e\u003cbr\u003eA: Yes, the base is made of PA66 nylon, which has excellent flame-retardant and high-temperature resistant properties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"KCD4 Rocker Switch","offers":[{"title":"ON-OFF \/ Red \/ 5-24V","offer_id":39612750299198,"sku":"FL3-KCD4-0123-23-1-R-524V","price":2.98,"currency_code":"USD","in_stock":true},{"title":"ON-OFF \/ Red \/ 110-220V","offer_id":39612750331966,"sku":"FL3-KCD4-0123-23-1-R-110220V","price":2.98,"currency_code":"USD","in_stock":true},{"title":"ON-OFF \/ Red \/ Customization (please note)","offer_id":39612750364734,"sku":"FL3-KCD4-0123-23-1-R-C","price":2.98,"currency_code":"USD","in_stock":true},{"title":"ON-OFF \/ Green \/ 5-24V","offer_id":39612750889022,"sku":"FL3-KCD4-0123-23-1-G-524V","price":2.98,"currency_code":"USD","in_stock":true},{"title":"ON-OFF \/ Green \/ 110-220V","offer_id":39612750921790,"sku":"FL3-KCD4-0123-23-1-G-110220V","price":2.98,"currency_code":"USD","in_stock":true},{"title":"ON-OFF \/ Green \/ Customization (please note)","offer_id":39612750954558,"sku":"FL3-KCD4-0123-23-1-G-C","price":2.98,"currency_code":"USD","in_stock":true},{"title":"ON-OFF \/ Yellow \/ 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