{"product_id":"dc-12v-fail-secure-electric-mortise-drop-bolt-lock-mechanical-key","title":"DC 12V Fail Secure Electric Mortise Drop Bolt Lock \u0026 Key","description":"\n\u003ch2\u003eDC 12V Fail Secure Electric Mortise Drop Bolt Lock — Built for Reliable Access Control\u003c\/h2\u003e\n\u003cp\u003eUpgrade your door security with the \u003cstrong\u003eElectric Mortise Drop Bolt Lock (Model XM-500A\/XM-500B)\u003c\/strong\u003e — a heavy-duty, fail-secure access control lock engineered for offices, wooden doors, metal doors, glass doors, and PVC doors. Featuring a solid \u003cstrong\u003e304 stainless steel lock core\u003c\/strong\u003e capable of withstanding up to \u003cstrong\u003e1,000 kg of impact\u003c\/strong\u003e, this lock offers professional-grade durability rated for \u003cstrong\u003e500,000 operation cycles\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWith its built-in \u003cstrong\u003eadjustable time delay\u003c\/strong\u003e (0, 3, 6, or 9 seconds), LED status indicators, and door-status signal output, it integrates seamlessly into virtually any access control system — all at a practical DC 12V operating voltage.\u003c\/p\u003e\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\u003eFail Secure Operation:\u003c\/strong\u003e Locks automatically when power is cut off (Normally Open — NO), keeping your premises secure during outages.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMechanical Key Override:\u003c\/strong\u003e Includes a physical key for manual access when needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e304 Stainless Steel Core:\u003c\/strong\u003e Solid lock core (16 mm protrusion × 13 mm diameter) resists up to 1,000 kg of force.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Time Delay:\u003c\/strong\u003e Choose 0, 3, 6, or 9 seconds to suit your workflow.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Status Display:\u003c\/strong\u003e Red light = locked; Green light = unlocked — instant visual confirmation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDoor Status Signal Output:\u003c\/strong\u003e NO, NC, and COM contacts for integration with monitoring systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMagnetic Induction Sensing:\u003c\/strong\u003e Detects door gap up to 8 mm for accurate status reporting.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrushed Stainless Steel Panel:\u003c\/strong\u003e Modern finish resists corrosion and daily wear.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBroad Door Compatibility:\u003c\/strong\u003e Fits wooden, metal, and PVC doors.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Range:\u003c\/strong\u003e Works in temperatures from -10°C to +55°C (14°F to 131°F) and humidity from 0–90% RH.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eXM-500A \/ XM-500B\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eWorking Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDC 12V ±10% (24VDC available on request)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eStarting Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e960 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eWorking Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e180 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eLock Core Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e16 mm protrusion length × 13 mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eLock Core Strength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWithstands up to 1,000 kg impact\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eTime Delay Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0 s, 3 s, 6 s, 9 s (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDoor Gap Sensing\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eUp to 8 mm magnetic induction\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePanel Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e304 Stainless Steel (brushed finish)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e-10°C to +55°C (14°F to 131°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOperating Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0–90% RH\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eRated Durability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e500,000 operation cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCompatible Door Types\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eWooden, Metal, PVC\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Electric Mortise Drop Bolt Lock (XM-500A or XM-500B)\u003c\/li\u003e\n  \u003cli\u003eMechanical key(s) for manual override\u003c\/li\u003e\n  \u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose This Lock?\u003c\/h3\u003e\n\u003cp\u003eWhether you're securing an office entry, a server room, or a residential gate, this fail-secure electric drop bolt lock delivers the reliability and integration flexibility modern access control demands. The combination of a robust stainless steel build, adjustable delay timing, visual LED feedback, and dry-contact signal output makes it a versatile choice for both standalone and networked security setups.\u003c\/p\u003e\n\n\u003cp\u003eFor general guidance on door hardware security standards, visit the U.S. Consumer Product Safety Commission (CPSC).\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does \"fail secure\" mean for this electric mortise drop bolt lock?\u003c\/h4\u003e\n\u003cp\u003eA: Fail secure means that when power is cut off, the lock remains in the locked (secured) position. This is the opposite of fail safe (which unlocks on power loss). For security-sensitive areas like offices or server rooms, fail secure ensures your door stays locked during a power outage.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this electric drop bolt lock compatible with my existing access control system?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The lock operates at DC 12V (with 24VDC available on request) and provides NO, NC, and COM dry-contact signal outputs, making it compatible with most standard access control panels, keypads, card readers, and intercoms.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I open the door manually if the power goes out?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The lock includes a mechanical key override, allowing authorized personnel to unlock the door manually regardless of power status.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What door types are compatible with this mortise lock?\u003c\/h4\u003e\n\u003cp\u003eA: This lock is designed for wooden doors, metal doors, and PVC doors. Its magnetic induction sensing works with a door gap of up to 8 mm.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How durable is the lock core?\u003c\/h4\u003e\n\u003cp\u003eA: The lock core is made from solid 304 stainless steel and is engineered to withstand up to 1,000 kg of impact force. The entire unit is rated for 500,000 operation cycles, ensuring long-term reliability in high-traffic environments.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does \\\"fail secure\\\" mean for this electric mortise drop bolt lock?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Fail secure means that when power is cut off, the lock remains in the locked (secured) position. This is the opposite of fail safe (which unlocks on power loss). For security-sensitive areas like offices or server rooms, fail secure ensures your door stays locked during a power outage.\"}}, {\"@type\": \"Question\", \"name\": \"Is this electric drop bolt lock compatible with my existing access control system?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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