{"product_id":"mechanical-tamper-switch-3-pack-normally-closed-plunger-metal-housing-screw-mount","title":"3-Pack Mechanical Tamper Switch – NC Plunger, Metal Housing","description":"\n\u003ch2\u003eMechanical Tamper Switch 3-Pack – Normally Closed Plunger Contact, Metal Housing, Screw Mount\u003c\/h2\u003e\n\n\u003cp\u003eKeep your security enclosures, alarm panels, and control cabinets protected with this reliable set of \u003cstrong\u003e3 Mechanical Tamper Switches\u003c\/strong\u003e. Featuring a normally closed (NC) plunger contact design and a rugged metal housing, these switches instantly signal an alert the moment an enclosure door or cabinet lid is opened — giving you continuous, passive monitoring without any extra wiring complexity.\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\u003eNormally Closed Design:\u003c\/strong\u003e The circuit remains closed when the plunger is depressed (door closed) and opens when the door is opened, triggering your alarm or monitoring system immediately.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndoor-Optimized Reliability:\u003c\/strong\u003e Engineered for stable, consistent performance in indoor security cabinet, control panel, and alarm enclosure applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuick Screw Mount Installation:\u003c\/strong\u003e Each switch includes mounting screws and nuts for fast, secure installation — minimizing downtime during setup or maintenance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Metal + Plastic Construction:\u003c\/strong\u003e The combined metal housing and plastic body ensures long-lasting resilience even under frequent use in demanding industrial or commercial environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Application:\u003c\/strong\u003e Ideal for security cabinets, locking enclosures, alarm doors, access control systems, and control room panels in offices, warehouses, and industrial facilities.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow-Voltage Compatible:\u003c\/strong\u003e Suitable for low-voltage security and alarm systems — easy to integrate into existing setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Mechanical Tamper Switch (Plunger Contact)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCircuit Mode:\u003c\/strong\u003e Normally Closed (NC)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHousing Material:\u003c\/strong\u003e Metal + Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Style:\u003c\/strong\u003e Screw Mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e As Shown\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 3 × Tamper Switches\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e3 × Mechanical Tamper Switches\u003c\/li\u003e\n  \u003cli\u003e9 × Screws\u003c\/li\u003e\n  \u003cli\u003e9 × Nuts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eNote: Due to light reflection and different display settings, the color of the item may appear slightly different from the actual product. Measurement tolerance is ±1–3 cm.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-precision-japanese-double-edged-hand-saw-sk5-steel-fine-toothed-for-carpentry-and-gardening-6-inch-blade-portable-mini-1\"\u003e1pc Precision Japanese Double-Edged Hand Saw – SK5 Steel, Fine-Toothed\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/10pcs-wooden-handle-nylon-bristle-paint-brush-for-oil-painting-dusting-and-cleaning-unrechargeable-hand-tool-set-without-batt-2\"\u003e10Pcs Wooden Handle Nylon Bristle Paint Brush – Hand Tool Set\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-professional-heavy-duty-pruning-shears-with-anti-slip-handle-design-suitable-for-trimming-thick-and-sturdy-branches\"\u003e1pc Professional Heavy-Duty Pruning Shears with Anti-Slip Handle\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 does \"normally closed\" mean for this tamper switch?\u003c\/h4\u003e\n\u003cp\u003eA: A normally closed (NC) tamper switch keeps the electrical circuit closed when the plunger is pressed in (i.e., the door or panel is shut). When the door opens and releases the plunger, the circuit opens, triggering the connected alarm or monitoring system. This is the standard configuration for security enclosure and alarm door applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What types of enclosures or doors is this tamper switch compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This mechanical tamper switch is compatible with a wide range of indoor applications, including security cabinets, alarm enclosures, control panels, locking cabinet doors, and access control setups in offices, warehouses, and control rooms. It uses a standard screw mount, making it easy to fit on most flat surfaces.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How difficult is the installation process?\u003c\/h4\u003e\n\u003cp\u003eA: Installation is straightforward. Each switch comes with 3 screws and 3 nuts, allowing for secure and quick screw-mount installation. Simply position the switch so the plunger makes contact with the door or panel when closed, then wire it into your low-voltage alarm or security circuit. No specialized tools are required.\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 \\\"normally closed\\\" mean for this tamper switch?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A normally closed (NC) tamper switch keeps the electrical circuit closed when the plunger is pressed in (i.e., the door or panel is shut). When the door opens and releases the plunger, the circuit opens, triggering the connected alarm or monitoring system. This is the standard configuration for security enclosure and alarm door applications.\"}}, {\"@type\": \"Question\", \"name\": \"What types of enclosures or doors is this tamper switch compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This mechanical tamper switch is compatible with a wide range of indoor applications, including security cabinets, alarm enclosures, control panels, locking cabinet doors, and access control setups in offices, warehouses, and control rooms. It uses a standard screw mount, making it easy to fit on most flat surfaces.\"}}, {\"@type\": \"Question\", \"name\": \"How difficult is the installation process?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Installation is straightforward. Each switch comes with 3 screws and 3 nuts, allowing for secure and quick screw-mount installation. 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No specialized tools are required.\"}}]}\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:\/\/pg0se5-51.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/pg0se5-51.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"3-Pack Mechanical Tamper Switch – NC Plunger, Metal Housing\", \"item\": \"https:\/\/pg0se5-51.myshopify.com\/products\/mechanical-tamper-switch-3-pack-normally-closed-plunger-metal-housing-screw-mount\"}]}\u003c\/script\u003e","brand":"Babs","offers":[{"title":"As Shown","offer_id":53144535466124,"sku":"14:1954460561#As Shown","price":30.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/2862\/6316\/files\/Seafdee44862849d7b55c6ddefdc4e0aek.webp?v=1787160082","url":"https:\/\/babcustomersupport.com\/products\/mechanical-tamper-switch-3-pack-normally-closed-plunger-metal-housing-screw-mount","provider":"Babs","version":"1.0","type":"link"}