{"product_id":"kw11-3z-micro-limit-switch-3pin-no-nc-5a-125v-250vac-10-20-pack","title":"KW11-3Z Micro Limit Switch 3-Pin NO\/NC 5A 125\/250VAC | 10\/20 Pack","description":"\u003ch2\u003eReliable Micro Limit Switches for Precise Control Applications\u003c\/h2\u003e\n\u003cp\u003eWhether you're building DIY electronics, automating machinery, or repairing appliances, these \u003cstrong\u003eKW11-3Z Micro Limit Switches\u003c\/strong\u003e deliver dependable performance in a compact, snap-action package. Available in packs of 10 or 20, these CE-certified mini switches feature both \u003cstrong\u003eNormally Open (NO) and Normally Closed (NC)\u003c\/strong\u003e contacts on a single 3-pin terminal — giving you flexible control options for virtually any project.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KW11-3Z — industry-standard micro switch for wide compatibility\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3-Pin Configuration:\u003c\/strong\u003e Common (COM), Normally Open (NO), and Normally Closed (NC) terminals for versatile wiring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Current:\u003c\/strong\u003e 5A for reliable switching under real-world loads\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e 125V AC \/ 250V AC — suitable for both low and high voltage circuits\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCE Certified:\u003c\/strong\u003e Meets European conformity safety standards\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHandle \u0026amp; Handleless Options:\u003c\/strong\u003e Choose the lever\/handle or handleless contact style to suit your application\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Plastic Housing:\u003c\/strong\u003e Lightweight yet rugged for long-term use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals:\u003c\/strong\u003e Safe materials, no hazardous substances\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eValue Packs:\u003c\/strong\u003e Choose 10-piece or 20-piece sets to stock up and save\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e3D printers (endstop \/ homing switches)\u003c\/li\u003e\n  \u003cli\u003eCNC machines and laser cutters\u003c\/li\u003e\n  \u003cli\u003eDIY robotics and automation projects\u003c\/li\u003e\n  \u003cli\u003eHome appliance repair (microwaves, washing machines, refrigerators)\u003c\/li\u003e\n  \u003cli\u003eIndustrial equipment and control panels\u003c\/li\u003e\n  \u003cli\u003eDoor and drawer position sensors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKW11-3Z\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePins\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3-Pin (COM, NO, NC)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e125V AC \/ 250V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCE\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\u003ePack Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 or 20 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-scr-solid-state-relay-switch-module-dc3-24v-40a-optocoupler\"\u003e1-Channel SCR Solid State Relay Module DC3-24V 40A Optocoupler\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-pack-22awg-glass-tube-fuse-holder-5x20mm-6x30mm-screw-type-10-pack\"\u003e10-Pack 22AWG Glass Tube Fuse Holder 5x20mm \u0026amp; 6x30mm Screw\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10-pack-12v-3-pin-pc-fan-power-extension-cable-26cm-cpu-gpu-cooler\"\u003e10-Pack 12V 3-Pin PC Fan Extension Cable 26cm – CPU GPU Cooler\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on electrical component safety standards, visit the U.S. Consumer Product Safety Commission (CPSC).\u003c\/p\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Limit_switch\" target=\"_blank\" rel=\"noopener\"\u003eLimit switch\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the difference between the NO and NC contacts on the KW11-3Z micro switch?\u003c\/h4\u003e\n\u003cp\u003eA: The \u003cstrong\u003eNormally Open (NO)\u003c\/strong\u003e contact is open (no current flows) when the switch is at rest and closes when the actuator is pressed. The \u003cstrong\u003eNormally Closed (NC)\u003c\/strong\u003e contact is the opposite — it is closed at rest and opens when the actuator is triggered. The Common (COM) pin is shared between both. This 3-pin design lets you choose the contact behavior that best suits your circuit.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these KW11-3Z switches compatible with 3D printer endstops?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The KW11-3Z is one of the most popular micro switches used in 3D printers as endstop\/homing switches. The compact size, reliable snap-action mechanism, and standard pin spacing make them a direct fit for most DIY and commercial 3D printer builds including RepRap-style designs.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the maximum load these micro switches can handle?\u003c\/h4\u003e\n\u003cp\u003eA: These switches are rated for \u003cstrong\u003e5A at 125V AC or 250V AC\u003c\/strong\u003e. They are designed for moderate-load switching tasks. For high-current or high-voltage applications beyond these ratings, a relay or solid-state relay should be used in conjunction with the switch.\u003c\/p\u003e\n\u003ch4\u003eQ: Do these come with both handle and handleless versions?\u003c\/h4\u003e\n\u003cp\u003eA: Yes — you can select either the \u003cstrong\u003elever\/handle\u003c\/strong\u003e style (which includes an actuating arm for easy mechanical triggering) or the \u003cstrong\u003ehandleless\/button contact\u003c\/strong\u003e style (a bare plunger design for tight spaces or direct contact triggering). Check the available variant options when adding to your cart.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between the NO and NC contacts on the KW11-3Z micro switch?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Normally Open (NO) contact is open (no current flows) when the switch is at rest and closes when the actuator is pressed. The Normally Closed (NC) contact is the opposite — it is closed at rest and opens when the actuator is triggered. The Common (COM) pin is shared between both. This 3-pin design lets you choose the contact behavior that best suits your circuit.\"}}, {\"@type\": \"Question\", \"name\": \"Are these KW11-3Z switches compatible with 3D printer endstops?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The KW11-3Z is one of the most popular micro switches used in 3D printers as endstop\/homing switches. The compact size, reliable snap-action mechanism, and standard pin spacing make them a direct fit for most DIY and commercial 3D printer builds including RepRap-style designs.\"}}, {\"@type\": \"Question\", \"name\": \"What is the maximum load these micro switches can handle?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These switches are rated for 5A at 125V AC or 250V AC. They are designed for moderate-load switching tasks. For high-current or high-voltage applications beyond these ratings, a relay or solid-state relay should be used in conjunction with the switch.\"}}, {\"@type\": \"Question\", \"name\": \"Do these come with both handle and handleless versions?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes — you can select either the lever\/handle style (which includes an actuating arm for easy mechanical triggering) or the handleless\/button contact style (a bare plunger design for tight spaces or direct contact triggering). Check the available variant options when adding to your cart.\"}}]}\u003c\/script\u003e","brand":"Oasis Select","offers":[{"title":"KW11-3Z-1 \/ 20PCS","offer_id":47720983920745,"sku":"14:175#KW11-3Z-1;5:200000323#20PCS","price":11.28,"currency_code":"USD","in_stock":true},{"title":"KW11-3Z-1 \/ 10PCS","offer_id":47720983953513,"sku":"14:175#KW11-3Z-1;5:200000990#10PCS","price":11.28,"currency_code":"USD","in_stock":true},{"title":"KW11-3Z-E \/ 20PCS","offer_id":47720983986281,"sku":"14:193#KW11-3Z-E;5:200000323#20PCS","price":11.28,"currency_code":"USD","in_stock":true},{"title":"KW11-3Z-E \/ 10PCS","offer_id":47720984019049,"sku":"14:193#KW11-3Z-E;5:200000990#10PCS","price":11.28,"currency_code":"USD","in_stock":true},{"title":"KW11-3Z-A \/ 20PCS","offer_id":47720984051817,"sku":"14:173#KW11-3Z-A;5:200000323#20PCS","price":11.28,"currency_code":"USD","in_stock":true},{"title":"KW11-3Z-A \/ 10PCS","offer_id":47720984084585,"sku":"14:173#KW11-3Z-A;5:200000990#10PCS","price":11.28,"currency_code":"USD","in_stock":true},{"title":"KW11-3Z-B \/ 20PCS","offer_id":47720984117353,"sku":"14:29#KW11-3Z-B;5:200000323#20PCS","price":11.28,"currency_code":"USD","in_stock":true},{"title":"KW11-3Z-B \/ 10PCS","offer_id":47720984150121,"sku":"14:29#KW11-3Z-B;5:200000990#10PCS","price":11.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/7931\/3257\/files\/Scf09f636cec340dd8a6fe81e89ad33cdr.webp?v=1782320759","url":"https:\/\/oasis-select.com\/products\/kw11-3z-micro-limit-switch-3pin-no-nc-5a-125v-250vac-10-20-pack","provider":"Oasis Select","version":"1.0","type":"link"}