{"product_id":"micro-limit-switch-roller-lever-spdt-snap-action-3pin-10-pack","title":"10-Pack Micro Limit Switch Roller Lever SPDT Snap Action 3-Pin","description":"\n\u003ch2\u003e10-Pack Micro Roller Lever Limit Switches — SPDT Snap Action, 3-Pin\u003c\/h2\u003e\n\u003cp\u003eUpgrade your electronics projects with this convenient 10-piece set of micro limit switches featuring a roller lever arm and SPDT (Single Pole Double Throw) snap-action mechanism. Model \u003cstrong\u003eKW11-3Z-2\u003c\/strong\u003e, these compact yet robust switches deliver fast, precise actuation — perfect for hobbyists, engineers, and professionals alike.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSnap-Action Mechanism:\u003c\/strong\u003e Delivers instant, reliable on\/off switching with crisp tactile feedback every time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoller Lever Arm:\u003c\/strong\u003e Built-in roller reduces friction and wear, extending switch lifespan significantly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSPDT 3-Pin Configuration:\u003c\/strong\u003e Versatile common, normally open (NO), and normally closed (NC) terminals for maximum wiring flexibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Rated for AC 125V–250V, 5A current — suitable for a broad range of low-voltage applications (below 50V AC or 75V DC).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature:\u003c\/strong\u003e Performs reliably from -40°C to 70°C, ideal for demanding environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Size:\u003c\/strong\u003e Measures just 20 × 10 × 6 mm (L × W × H) — fits easily into tight spaces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Plastic Housing:\u003c\/strong\u003e Lightweight yet sturdy construction for long-lasting performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2-Year Warranty:\u003c\/strong\u003e Backed by a 2-year manufacturer warranty for added peace of mind.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCCC Certified:\u003c\/strong\u003e Meets China Compulsory Certification standards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003eAn external mechanical force is transmitted through the roller lever to activate the internal spring-loaded reed. When the actuating force reaches the critical threshold, the reed snaps to the action point, instantly switching the contact state (open or closed). Once the force is removed, the reed springs back, reversing the switch state — providing reliable, repeatable snap-action operation.\u003c\/p\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eComputer mice and input devices\u003c\/li\u003e\n  \u003cli\u003eAutomotive and vehicle electronics\u003c\/li\u003e\n  \u003cli\u003eCommunication equipment\u003c\/li\u003e\n  \u003cli\u003eGas boilers and burners\u003c\/li\u003e\n  \u003cli\u003eSmall household appliances\u003c\/li\u003e\n  \u003cli\u003eMicrowave ovens and electric rice cookers\u003c\/li\u003e\n  \u003cli\u003eMedical equipment\u003c\/li\u003e\n  \u003cli\u003eBuilding automation systems\u003c\/li\u003e\n  \u003cli\u003eElectric tools and power equipment\u003c\/li\u003e\n  \u003cli\u003eTest instruments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKW11-3Z-2\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSwitch Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSPDT Micro Snap-Action Switch\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActuator Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoller Lever Arm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 125V – 250V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40°C to 70°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 × 10 × 6 mm (L × W × H)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTerminals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-Pin PCB \/ Through-Hole\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCCC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e10 × Micro Roller Lever Limit Switches (KW11-3Z-2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does SPDT mean on a micro limit switch?\u003c\/h4\u003e\n\u003cp\u003eA: SPDT stands for Single Pole Double Throw. It means the switch has one common (COM) terminal that can connect to either a Normally Open (NO) or Normally Closed (NC) terminal. This gives you maximum flexibility to configure the switch for your specific circuit — whether you need it to complete a circuit when triggered or break a circuit when triggered.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the maximum current and voltage these micro limit switches can handle?\u003c\/h4\u003e\n\u003cp\u003eA: The KW11-3Z-2 micro limit switches are rated for up to 5A of current at AC 125V–250V. They are also compliant for low-voltage applications below 50V AC or 75V DC, making them versatile for a wide variety of electronic and automation projects.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are these micro limit switches suitable for outdoor or high-temperature environments?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — these switches are designed to operate reliably across a wide temperature range of -40°C to 70°C, making them suitable for demanding environments including automotive, industrial, and outdoor automation applications. However, they are not rated as waterproof or weatherproof, so additional enclosure protection is recommended for fully outdoor use.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does SPDT mean on a micro limit switch?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"SPDT stands for Single Pole Double Throw. It means the switch has one common (COM) terminal that can connect to either a Normally Open (NO) or Normally Closed (NC) terminal. 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