{"product_id":"me-8104-roller-arm-limit-switch-10-pack-cnc-laser-micro-switch","title":"ME-8104 Roller Arm Limit Switch 10 Pack – CNC Laser 5A 250V","description":"\n\u003ch2\u003eME-8104 Momentary Roller Arm Micro Limit Switch – 10-Piece Pack\u003c\/h2\u003e\n\u003cp\u003eGet precision position sensing for your CNC mill, laser cutter, or automation project with this 10-pack of ME-8104 momentary roller arm limit switches. Each switch features a rotary lever arm with roller actuator that delivers crisp, reliable triggering — ideal for end-stop, homing, and safety cut-off applications in workshops and maker spaces alike.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e ME-8104\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Momentary Micro Switch — Rotary Lever Arm with Roller\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Power:\u003c\/strong\u003e AC 250V \/ 5A  |  DC 115V \/ 0.4A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFixing Thread Diameter:\u003c\/strong\u003e 4 mm \/ 0.15\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoller Dimension:\u003c\/strong\u003e ~1.8 × 0.7 cm \/ 0.7\" × 0.3\" (Diameter × Height)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLever Arm Length:\u003c\/strong\u003e 4.6 cm \/ 1.8\"\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Size:\u003c\/strong\u003e 12.3 × 2.8 × 3.9 cm \/ 4.8\" × 1.1\" × 1.5\" (L × W × H)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black \u0026amp; Blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic, Metal \u0026amp; Rubber\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e CCC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2 Years\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePack Quantity:\u003c\/strong\u003e 10 pieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose the ME-8104?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReliable Actuation:\u003c\/strong\u003e The roller-tipped lever arm smoothly engages moving machine parts, ensuring consistent switching without mechanical shock.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Supports AC 250V\/5A and DC 115V\/0.4A, making it versatile across different CNC, laser, and industrial control circuits.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Built from a combination of plastic, metal, and rubber for long-term performance in demanding shop environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWholesale Value:\u003c\/strong\u003e Ten switches per pack mean you always have a spare on hand for multi-axis machines or ongoing projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Mounting:\u003c\/strong\u003e Standard 4 mm fixing thread diameter fits common machine frames and enclosures with minimal modification.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCNC router and milling machine end-stops \u0026amp; homing switches\u003c\/li\u003e\n  \u003cli\u003eLaser cutter and engraver position sensing\u003c\/li\u003e\n  \u003cli\u003e3D printer axis limit detection\u003c\/li\u003e\n  \u003cli\u003eConveyor belt and automated production line position control\u003c\/li\u003e\n  \u003cli\u003eDIY robotics and electromechanical projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Need\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/12pcs-16mm-momentary-push-button-switch-1no-metal-2-pin-self-reset\"\u003e12pcs 16mm Momentary Push Button Switch 1NO Metal 2-Pin Self-Reset\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-2-pin-quick-splice-spring-wire-connectors-lock-terminals\"\u003e10pcs 2-Pin Spring Wire Connectors – Quick Splice Lock Terminals\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-durable-gold-blade-nut-metal-universal-trimmer-accessories-anti-loosening-line-left-hand-thread-replacement-parts-1\"\u003e10pcs Durable Gold Blade Nut Metal Universal Trimmer Accessories\u003c\/a\u003e\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 is the ME-8104 limit switch used for in CNC and laser machines?\u003c\/h4\u003e\n\u003cp\u003eA: The ME-8104 roller arm micro limit switch is commonly used as an end-stop or homing switch on CNC routers, milling machines, laser cutters, and 3D printers. When a moving axis reaches its travel limit, the roller arm is actuated, triggering the switch and signaling the controller to stop or reverse movement — helping protect both the machine and the workpiece.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the difference between momentary and latching switches, and which is the ME-8104?\u003c\/h4\u003e\n\u003cp\u003eA: A momentary switch (like the ME-8104) only remains actuated while physical pressure is applied to its lever arm — as soon as the contact is released, the switch returns to its default state. A latching switch stays in its toggled state until manually reset. For position sensing and homing in CNC and automation applications, momentary micro switches are the standard choice.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these switches compatible with both AC and DC circuits?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The ME-8104 is rated for AC 250V at 5A and DC 115V at 0.4A, making it suitable for a wide range of machine control boards, relay circuits, and automation controllers that operate on either AC or DC supplies.\u003c\/p\u003e\n\u003ch4\u003eQ: How many switches are included and what is the warranty?\u003c\/h4\u003e\n\u003cp\u003eA: Each pack contains 10 ME-8104 limit switches. All switches carry a 2-year warranty, ensuring long-term reliability for your machines and projects.\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 is the ME-8104 limit switch used for in CNC and laser machines?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The ME-8104 roller arm micro limit switch is commonly used as an end-stop or homing switch on CNC routers, milling machines, laser cutters, and 3D printers. 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All switches carry a 2-year warranty, ensuring long-term reliability for your machines and projects.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/68k0rh-yt.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/68k0rh-yt.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"ME-8104 Roller Arm Limit Switch 10 Pack – CNC Laser 5A 250V\", \"item\": \"https:\/\/68k0rh-yt.myshopify.com\/products\/me-8104-roller-arm-limit-switch-10-pack-cnc-laser-micro-switch\"}]}\u003c\/script\u003e","brand":"Richie's","offers":[{"title":"Default Title","offer_id":57606102319270,"sku":"4000125339348-Default Title","price":128.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/2182\/7494\/files\/H685aedef679b470ead532dfd085d2509f.webp?v=1791728002","url":"https:\/\/richiesmart.com\/products\/me-8104-roller-arm-limit-switch-10-pack-cnc-laser-micro-switch","provider":"Richie's","version":"1.0","type":"link"}