{"product_id":"12v-access-control-power-supply-relay-switch-time-delay","title":"12V Access Control Power Supply Relay Switch – Adjustable Delay","description":"\n\u003ch2\u003eAsia-Teco 12V Access Control Power Supply with Relay Switch \u0026amp; Adjustable Time Delay\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eAsia-Teco KDB05-5A 12V DC Power Supply\u003c\/strong\u003e is a compact, reliable control unit engineered for door entry lock systems. Whether you're setting up an office, warehouse, apartment building, or home access point, this adapter delivers stable 12V DC power with a built-in relay switch and adjustable locking delay — making installation and management of electric door locks simple and dependable.\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\u003eAdjustable Time Delay:\u003c\/strong\u003e Timer delay is adjustable from 0 to 20 seconds, giving you precise control over how long the door lock stays energized after a trigger signal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComprehensive Protection:\u003c\/strong\u003e Built-in safeguards against overload, over-current, over-voltage, and short-circuit keep your system and connected hardware safe.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Noise Output:\u003c\/strong\u003e Minimal electromagnetic interference ensures reliable performance alongside RFID card readers and other access control components.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Drive Capacity:\u003c\/strong\u003e 5A output current (36W) provides sufficient momentary current to operate the majority of electric locks on the market.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Input Voltage Range:\u003c\/strong\u003e Accepts AC 100V–240V, 50–60Hz — compatible with power grids worldwide.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Efficiency Filtered Output:\u003c\/strong\u003e 0.5% output stability (typical) with low-interference filtered output for consistent lock operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Metal enclosure measures just 92mm × 68mm × 31mm and weighs only 290g — easy to mount in tight spaces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Temperature:\u003c\/strong\u003e Rated for -20°C to 65°C, suitable for both indoor and outdoor installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKDB05-5A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAC 100V–240V, 50–60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 12V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e36W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Stability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5% Typical\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLocking Delay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdjustable 0–20 seconds\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-20°C to 65°C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e92mm × 68mm × 31mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e290g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAsia-Teco\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 × Asia-Teco KDB05-5A 12V Access Control Power Supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety \u0026amp; Installation Reference\u003c\/h3\u003e\n\u003cp\u003eFor guidance on electrical safety practices when installing access control hardware, visit the \u003ca href=\"https:\/\/www.osha.gov\/electrical\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eOSHA Electrical Safety resource\u003c\/a\u003e. Always consult a licensed electrician if you are unsure about wiring or installation requirements.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What types of electric door locks is this 12V power supply compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: The Asia-Teco KDB05-5A is designed to power the majority of 12V electric locks available on the market, including electromagnetic locks (maglocks), electric strike locks, and drop-bolt locks. Its 5A \/ 36W output provides ample current for single-door access control systems.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I set the time delay on this relay switch?\u003c\/h4\u003e\n\u003cp\u003eA: The locking delay is adjustable from 0 to 20 seconds via the onboard timer control. You can fine-tune the delay to match your specific door lock and access workflow — a shorter delay for high-traffic entries or a longer delay for convenience in slower-access environments.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Will this power supply work with my RFID card reader?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The KDB05-5A features a low-noise, high-efficiency filtered output specifically designed to minimize electromagnetic interference with RFID card readers and other access control peripherals, ensuring accurate and reliable reads every time.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this unit suitable for outdoor or temperature-variable installations?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The unit is rated for operating temperatures from -20°C to 65°C, making it suitable for a wide range of environments including unheated server rooms, garages, and outdoor-adjacent enclosures. Its metal enclosure adds durability for demanding installations.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does this power supply include short-circuit and over-voltage protection?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. Built-in protections against overload, over-current, over-voltage, and short-circuit are included, helping to safeguard both the power supply and your connected door lock hardware from electrical faults.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What types of electric door locks is this 12V power supply compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The Asia-Teco KDB05-5A is designed to power the majority of 12V electric locks available on the market, including electromagnetic locks (maglocks), electric strike locks, and drop-bolt locks. 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