{"product_id":"4-pin-push-button-switch-ring-led","title":"19mm 4PIN Push Button Switch Ring LED Momentary Stainless Steel for CNC\/Marine | FILN","description":"\u003cdiv style=\"font-family: Arial, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8; width: 100%;\"\u003e\n\u003cspan\u003eButton Switch Drawing\u003c\/span\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/FLM19-FJ-2-E_Drawing.webp?v=1776303562\" alt=\"\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp style=\"margin-top: 10px;\"\u003eThe \u003cstrong\u003e4 pin push button switch\u003c\/strong\u003e (Model: FLM19-FJ-2-E) is a high-performance industrial control component engineered for durability and precision. Manufactured by \u003cstrong\u003eFILN\u003c\/strong\u003e, a leader in the switch industry, this \u003cstrong\u003e19mm waterproof metal switch\u003c\/strong\u003e features a premium \u003cstrong\u003estainless steel\u003c\/strong\u003e housing and a vibrant \u003cstrong\u003eLED ring indicator\u003c\/strong\u003e. With certifications including \u003cstrong\u003eISO9001, CE, VDE, RoHS, SGS, UL, and IP65\u003c\/strong\u003e, it is designed for rigorous environments such as CNC machines, marine systems, and automation equipment. This \u003cstrong\u003emomentary push button switch\u003c\/strong\u003e ensures reliable circuit control with \u003cstrong\u003esilver contacts\u003c\/strong\u003e for superior conductivity. Whether you need a \u003cstrong\u003e12V LED button\u003c\/strong\u003e or a \u003cstrong\u003e220V industrial switch\u003c\/strong\u003e, our \u003cstrong\u003e4-pin terminal design\u003c\/strong\u003e provides a secure and efficient connection for various \u003cstrong\u003eelectrical control panels\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-top: 30px; margin-bottom: 2px; border-bottom: 2px solid #1a73e8; width: 100%;\"\u003eQuick Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-size: 14px; margin-top: 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa; width: 50%;\"\u003eModel Number\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left; width: 50%;\"\u003eFLM19-FJ-2-E\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eMounting Hole Size\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e19mm (0.75 inch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eOperation Function\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eMomentary (Self-Reset)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eLED Color\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eRed \/ Green \/ Yellow \/ Blue \/ White (Bi-color\/Tri-color Customization)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eButton Head Shape\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eFlat Head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eTerminal Type\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e4-Pin Plug-in Terminal (2.8x0.5mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-top: 30px; margin-bottom: 2px; border-bottom: 2px solid #1a73e8; width: 100%;\"\u003ePerformance Parameters\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-size: 14px; margin-top: 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa; width: 50%;\"\u003eRated Voltage\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left; width: 50%;\"\u003e36V DC \/ 250V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eRated Current\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e5A DC \/ 5A AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eRated Power\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e180W (DC) \/ 1250W (AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eInsulation Resistance\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e≥ 1000MΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eDielectric Strength\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e1800V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eContact Resistance\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e\u0026lt; 50mΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eLED Voltage Range\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e3V - 220V (12-24V \/ 110-220V Standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eCertifications\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\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=\"margin-top: 15px; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/Product_Certification.webp?v=1774674312\" alt=\"FILN Product Certification UL CE RoHS\" style=\"max-width: 100%; height: auto; border: 1px solid #eee;\"\u003e\u003c\/div\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-top: 30px; margin-bottom: 2px; border-bottom: 2px solid #1a73e8; width: 100%;\"\u003eComponent Materials\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-size: 14px; margin-top: 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa; width: 50%;\"\u003eButton \/ Actuator\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left; width: 50%;\"\u003e304 Stainless Steel \/ 6063 Aluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eShell \/ Housing\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eH59 Brass \/ 304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eInternal Base\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003ePA66+GF20% Flame Retardant Nylon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eContacts\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eSilver Alloy (AgCdO12)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003ePins\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eH62 Brass Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eSealing Ring\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eSIL Silicone (Waterproof)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-top: 30px; margin-bottom: 2px; border-bottom: 2px solid #1a73e8; width: 100%;\"\u003eGeneral Characteristics\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-size: 14px; margin-top: 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa; width: 50%;\"\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left; width: 50%;\"\u003e-25°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eProtection Level\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eIP65 (Waterproof), IK08 (Vandal-Proof)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eMechanical Life\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e500,000 Cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eElectrical Life\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e100,000 Cycles (250V\/3A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-top: 30px; margin-bottom: 2px; border-bottom: 2px solid #1a73e8; width: 100%;\"\u003eLED Optical\/Electrical Characteristics\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-size: 14px; margin-top: 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa; width: 50%;\"\u003eForward Current\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left; width: 50%;\"\u003e20mA (Typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eLight Intensity\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e1000 mcd\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eColor Temperature (White)\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e8400K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eLuminous Flux\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e4.8 lm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f8f9fa;\"\u003eMax Soldering Temp\u003c\/th\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003e260°C (within 5s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-top: 30px; margin-bottom: 2px; border-bottom: 2px solid #1a73e8; width: 100%;\"\u003eKey Features\u003c\/h2\u003e\n\u003cul style=\"margin-top: 10px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Durability:\u003c\/strong\u003e Rated \u003cstrong\u003eIP65\u003c\/strong\u003e and \u003cstrong\u003eIK08\u003c\/strong\u003e, this \u003cstrong\u003e19mm metal switch\u003c\/strong\u003e is dust-proof, waterproof, and resistant to impacts, making it ideal for harsh industrial environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Load Capacity:\u003c\/strong\u003e Supports up to \u003cstrong\u003e5A 250V AC\/DC\u003c\/strong\u003e, allowing direct control of high-power equipment without the need for intermediate relays.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Material Selection:\u003c\/strong\u003e The \u003cstrong\u003e304 stainless steel\u003c\/strong\u003e shell offers exceptional corrosion resistance, suitable for medical and marine engineering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilver Contact Technology:\u003c\/strong\u003e Utilizes \u003cstrong\u003eAgCdO12 silver contacts\u003c\/strong\u003e to ensure low contact resistance (\u0026lt; 50mΩ) and minimize electrical arcing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Compact Design:\u003c\/strong\u003e With a total length of approximately 26.5mm, it is perfect for space-constrained \u003cstrong\u003econtrol panels\u003c\/strong\u003e and handheld devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-top: 30px; margin-bottom: 2px; border-bottom: 2px solid #1a73e8; width: 100%;\"\u003eIndustrial Applications\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eround push button switch\u003c\/strong\u003e is widely utilized across various sectors:\u003c\/p\u003e\n\u003cul style=\"columns: 2;\"\u003e\n\u003cli\u003eIndustrial control panels\u003c\/li\u003e\n\u003cli\u003eCNC machines\u003c\/li\u003e\n\u003cli\u003eAutomation equipment\u003c\/li\u003e\n\u003cli\u003eElectrical cabinets\u003c\/li\u003e\n\u003cli\u003eMarine systems\u003c\/li\u003e\n\u003cli\u003eMedical devices\u003c\/li\u003e\n\u003cli\u003eSecurity systems\u003c\/li\u003e\n\u003cli\u003eAccess control buttons\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"margin-top: 15px; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/Application_Industries_of_FILN_Push_Button_Switches.webp?v=1776044180\" alt=\"Industrial Applications for Push Button Switches\" style=\"max-width: 100%; height: auto;\"\u003e\u003c\/div\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-top: 30px; margin-bottom: 2px; border-bottom: 2px solid #1a73e8; width: 100%;\"\u003eInstallation Steps\u003c\/h2\u003e\n\u003col style=\"margin-top: 10px;\"\u003e\n\u003cli\u003eDrill a 19mm diameter mounting hole in the control panel.\u003c\/li\u003e\n\u003cli\u003eInsert the \u003cstrong\u003e4 pin button switch\u003c\/strong\u003e through the hole from the front.\u003c\/li\u003e\n\u003cli\u003eSlide the waterproof O-ring and the metal hex nut from the back of the panel.\u003c\/li\u003e\n\u003cli\u003eTighten the hex nut to secure the switch body firmly to the panel.\u003c\/li\u003e\n\u003cli\u003eConnect the wiring terminals according to the desired LED mode (Always ON or Synchronized).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cdiv style=\"margin-top: 15px; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/push_button_switch_installation_steps.webp?v=1775800123\" alt=\"19mm Push Button Installation Steps\" style=\"max-width: 100%; height: auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-family: sans-serif; line-height: 1.4; color: #333; width: 100%; margin: 0 auto; padding: 0;\"\u003e\n\u003ch2 style=\"color: #1a73e8; border-bottom: 2px solid #1a73e8; padding-bottom: 5px; margin: 0 0 10px 0; font-size: 1.5em;\"\u003e4 Pin Push Button Switch Wiring Diagram\u003c\/h2\u003e\n\u003cp style=\"margin: 0 0 10px 0;\"\u003eA 4-PIN switch consists of two parts: \u003cb\u003eSwitch Contacts\u003c\/b\u003e (to control the device) and \u003cb\u003eLED Terminals\u003c\/b\u003e (marked with + and -). Below are two ways to wire the LED indicator.\u003c\/p\u003e\n\u003cdiv style=\"background-color: #f9f9f9; padding: 10px 15px; border-left: 4px solid #3498db; margin: 10px 0;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cb\u003eHorizontal Pins:\u003c\/b\u003e The switch mechanism (Power In \/ Load Out).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVertical Pins (+ \/ -):\u003c\/b\u003e The LED indicator light terminals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"color: #2980b9; margin: 15px 0 5px 0; font-size: 1.2em;\"\u003eMethod 1: LED Synchronized with Device (On when Active)\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 8px 0;\"\u003e\u003cb\u003eLogic:\u003c\/b\u003e The button light only turns \u003cb\u003eON\u003c\/b\u003e when the device is running. It serves as a \"Status Indicator.\"\u003c\/p\u003e\n\u003cul style=\"margin: 0 0 10px 0; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cb\u003eWiring:\u003c\/b\u003e Connect LED (+) to the \u003cb\u003eOutput\u003c\/b\u003e side of the switch. LED (-) to Power Negative.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplications:\u003c\/b\u003e Power start buttons, car fog lights, industrial machinery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBenefit:\u003c\/b\u003e Saves power; provides visual feedback that the system is active.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center; margin: 10px 0;\"\u003e\n\u003cimg style=\"width: 100%; height: auto; display: block;\" alt=\"4PIN LED Sync Wiring\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/Wiring_for_Push_Button_Switch_4PIN_NO_Connection.webp?v=1775805178\"\u003e\n\u003cp style=\"color: #777; font-size: 0.8em; margin: 5px 0;\"\u003e\u003ci\u003eFigure 1: LED turns ON only when button is pressed\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003chr style=\"border: 0; border-top: 1px solid #eee; margin: 15px 0;\"\u003e\n\u003ch3 style=\"color: #2980b9; margin: 15px 0 5px 0; font-size: 1.2em;\"\u003eMethod 2: LED Always ON (Backlight Mode)\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 8px 0;\"\u003e\u003cb\u003eLogic:\u003c\/b\u003e The button light stays \u003cb\u003eON\u003c\/b\u003e constantly as long as there is power, regardless of the button position.\u003c\/p\u003e\n\u003cul style=\"margin: 0 0 10px 0; padding-left: 20px;\"\u003e\n\u003cli\u003e\n\u003cb\u003eWiring:\u003c\/b\u003e Connect LED (+) directly to the \u003cb\u003ePower Positive\u003c\/b\u003e. LED (-) to Power Negative.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eApplications:\u003c\/b\u003e Dark environments, hallway switches, standby power indicators.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBenefit:\u003c\/b\u003e Allows you to find the switch easily in total darkness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center; margin: 10px 0;\"\u003e\n\u003cimg style=\"width: 100%; height: auto; display: block;\" alt=\"4PIN LED Always On Wiring\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/Wiring_for_Push_Button_Switch_4PIN.webp?v=1775805177\"\u003e\n\u003cp style=\"color: #777; font-size: 0.8em; margin: 5px 0;\"\u003e\u003ci\u003eFigure 2: LED stays ON constantly (Backlight)\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 15px; font-size: 13px; border: 1px solid #ddd;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eMode\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eLED Status (Idle)\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eLED Status (Pressed)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cb\u003eSync (Status)\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eOFF\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eON\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cb\u003eAlways ON (Backlight)\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eON\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eON\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-top: 30px; margin-bottom: 2px; border-bottom: 2px solid #1a73e8; width: 100%;\"\u003eIndustry Knowledge\u003c\/h2\u003e\n\u003ch3 style=\"color: #2980b9;\"\u003eWhat is a 4-Pin Push Button Switch?\u003c\/h3\u003e\n\u003cp\u003eA 4-pin push button switch is a fundamental component in industrial electronics. It separates the switching circuit (2 pins) from the indicator circuit (2 pins for the LED). This design allows for independent control of the light, which can act as a status indicator or a constant backlight. In \u003cstrong\u003eFILN\u003c\/strong\u003e products, these switches are often built with \u003cstrong\u003emetal shells\u003c\/strong\u003e for enhanced \u003cstrong\u003eRFI shielding\u003c\/strong\u003e and \u003cstrong\u003emechanical strength\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 style=\"color: #2980b9;\"\u003eLatching vs. Momentary Function\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-size: 14px; margin-top: 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eMomentary (Self-Reset)\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\"\u003eLatching (Self-Locking)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cb\u003eOperation\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eSprings back when released\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eStays in place until pressed again\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cb\u003eBest For\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003ePC Power, Horns, Doorbells\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eMain Power, Light Switches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"color: #2980b9;\"\u003eLED Color Meanings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed:\u003c\/strong\u003e Emergency, Stop, Error.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen:\u003c\/strong\u003e Normal operation, Start, Safety.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYellow:\u003c\/strong\u003e Warning, Standby, Pre-heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue:\u003c\/strong\u003e Specific functions, Manual mode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhite:\u003c\/strong\u003e High-visibility neutral indicator.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"color: #2980b9;\"\u003eTerminal Type Comparison\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #ddd; font-size: 14px; margin-top: 10px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px;\"\u003eType\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px;\"\u003eAdvantages\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px;\"\u003eBest Use Case\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cb\u003ePin Terminal (4-Pin)\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eFast assembly with connectors\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eMass production\/Control panels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cb\u003eScrew Terminal\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eVery secure, no soldering needed\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eField maintenance\/Thick cables\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u003cb\u003ePre-Wired\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003ePlug-and-play, saves time\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eDIY\/Prototyping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"background-color: #eef6ff; padding: 25px; margin-top: 30px; border-radius: 5px;\"\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-bottom: 2px; border-bottom: 2px solid #1a73e8; width: 100%;\"\u003eFILN Factory Direct Advantage\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 20px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px;\"\u003e\n\u003cp\u003eAs a specialized manufacturer, \u003cstrong\u003eFILN\u003c\/strong\u003e provides flexible solutions for global B2B industrial sourcing:\u003c\/p\u003e\n\u003cul style=\"list-style: none; padding-left: 0;\"\u003e\n\u003cli\u003e✅ \u003cstrong\u003eNo MOQ:\u003c\/strong\u003e Small orders welcome for testing and prototyping.\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eFast Delivery:\u003c\/strong\u003e Global shipping with short lead times.\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCustomization:\u003c\/strong\u003e Voltage (3V-220V), Wire length, and Connectors.\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCertified Quality:\u003c\/strong\u003e Full CE\/RoHS\/UL compliance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"margin-top: 20px;\"\u003e\u003ca href=\"mailto:inquiry@cnylin.com.cn\" style=\"background-color: #1a73e8; color: white; padding: 10px 20px; text-decoration: none; font-weight: bold; border-radius: 4px;\"\u003eGet Free Sample Now\u003c\/a\u003e\u003c\/div\u003e\n\u003cp style=\"margin-top: 15px;\"\u003e\u003cb\u003eOfficial Website:\u003c\/b\u003e \u003ca href=\"https:\/\/www.cnfiln.com\" style=\"color: #1a73e8;\" target=\"_blank\"\u003ewww.filn.com\u003c\/a\u003e\u003cbr\u003e\u003cb\u003eContact Email:\u003c\/b\u003e \u003ca href=\"mailto:inquiry@cnylin.com.cn\" style=\"color: #1a73e8;\"\u003einquiry@cnylin.com.cn\u003c\/a\u003e\u003cbr\u003e\u003cb\u003eView All:\u003c\/b\u003e \u003ca href=\"https:\/\/www.cnfiln.com\/collections\/push-button-switch\" style=\"color: #1a73e8;\" target=\"_blank\"\u003eAll Push Button Switches\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 300px; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/About_FILN.webp?v=1774851338\" alt=\"FILN Factory Overview and Production Line\" style=\"max-width: 100%; border-radius: 5px;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #1a73e8; font-weight: bold; display: inline-block; margin-top: 30px; margin-bottom: 2px; border-bottom: 2px solid #1a73e8; width: 100%;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-top: 10px;\"\u003e\n\u003cp\u003e\u003cb\u003eQ1: Is the 19mm 4-pin switch waterproof?\u003c\/b\u003e\u003cbr\u003eA: Yes, it is IP65 rated, making it resistant to water splashes and dust, suitable for outdoor use.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ2: Can I use this 4-pin LED button for a 110V circuit?\u003c\/b\u003e\u003cbr\u003eA: Yes, we offer LED voltage customization from 3V to 220V AC\/DC. Please select the 110V version when ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ3: What is the difference between a 4-pin and a 5-pin switch?\u003c\/b\u003e\u003cbr\u003eA: A 4-pin switch has one set of normally open contacts + 2 LED pins. A 5-pin switch typically offers NO\/NC (Common, Normally Open, Normally Closed) plus 2 LED pins.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ4: Do you support custom wire harness for these switches?\u003c\/b\u003e\u003cbr\u003eA: Yes, FILN provides wire length and connector customization to meet your specific assembly requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ5: Can I get a free sample for testing?\u003c\/b\u003e\u003cbr\u003eA: Absolutely! Please contact our sales team at inquiry@cnylin.com.cn for sample requests.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ6: What is the material of the metal shell?\u003c\/b\u003e\u003cbr\u003eA: The standard material is 304 stainless steel, but we also offer H59 brass and aluminum options.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ7: Is the LED ring always illuminated?\u003c\/b\u003e\u003cbr\u003eA: It depends on your wiring. You can wire it to be \"Always ON\" or \"Only when pressed.\"\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ8: How many cycles will this switch last?\u003c\/b\u003e\u003cbr\u003eA: It has a mechanical life of 500,000 cycles and an electrical life of 100,000 cycles at 3A load.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ9: What is the mounting hole size required?\u003c\/b\u003e\u003cbr\u003eA: It requires a standard 19mm (approx. 3\/4 inch) diameter round hole.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ10: Does FILN provide bulk pricing for industrial buyers?\u003c\/b\u003e\u003cbr\u003eA: Yes, we specialize in B2B supply and provide competitive tiered pricing for factory orders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"19MM Push Button Switch","offers":[{"title":"Silver Housing-Momentary \/ Red \/ 12-24V","offer_id":39588782440510,"sku":"FLM19-FJ-2-E-M-R-1224V","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ Red \/ 110-220V","offer_id":39588782473278,"sku":"FLM19-FJ-2-E-M-R-110220V","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ Red \/ Customization (please note)","offer_id":39588782506046,"sku":"FLM19-FJ-2-E-M-R-C","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ Green \/ 12-24V","offer_id":39588783030334,"sku":"FLM19-FJ-2-E-M-G-1224V","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ Green \/ 110-220V","offer_id":39588783063102,"sku":"FLM19-FJ-2-E-M-G-110220V","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ Green \/ Customization (please note)","offer_id":39588783095870,"sku":"FLM19-FJ-2-E-M-G-C","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ Yellow \/ 12-24V","offer_id":39588782637118,"sku":"FLM19-FJ-2-E-M-Y-1224V","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ Yellow \/ 110-220V","offer_id":39588782669886,"sku":"FLM19-FJ-2-E-M-Y-110220V","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ Yellow \/ Customization (please note)","offer_id":39588782702654,"sku":"FLM19-FJ-2-E-M-Y-C","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ Blue \/ 12-24V","offer_id":39588782833726,"sku":"FLM19-FJ-2-E-M-B-1224V","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ Blue \/ 110-220V","offer_id":39588782866494,"sku":"FLM19-FJ-2-E-M-B-110220V","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ Blue \/ Customization (please note)","offer_id":39588782899262,"sku":"FLM19-FJ-2-E-M-B-C","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ White \/ 12-24V","offer_id":39588783226942,"sku":"FLM19-FJ-2-E-M-W-1224V","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ White \/ 110-220V","offer_id":39588783259710,"sku":"FLM19-FJ-2-E-M-W-110220V","price":2.99,"currency_code":"USD","in_stock":true},{"title":"Silver Housing-Momentary \/ White \/ Customization (please note)","offer_id":39588783292478,"sku":"FLM19-FJ-2-E-M-W-C","price":2.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0266\/7420\/0638\/files\/4pinpushbuttonswitch.webp?v=1776303778","url":"https:\/\/www.cnfiln.com\/products\/4-pin-push-button-switch-ring-led","provider":"FILN Shopify","version":"1.0","type":"link"}