{"product_id":"12v-5a-access-control-power-supply-battery-backup","title":"12V 5A Access Control Power Supply with Battery Backup","description":"\n\u003ch2\u003e12V 5A Universal Access Control Power Supply with Battery Backup Interface\u003c\/h2\u003e\n\u003cp\u003eKeep your door access control system running reliably around the clock with this robust 12V 5A universal power supply. Engineered for access control panels, electric locks, alarm systems, and security monitoring equipment, this unit features a built-in battery backup interface for seamless, uninterrupted power — even during a mains outage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e⚠ Please Note:\u003c\/strong\u003e Battery is \u003cstrong\u003enot included\u003c\/strong\u003e. A 12V 7Ah battery is recommended (approximate size: 151mm × 65mm × 100mm).\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Input Range:\u003c\/strong\u003e AC 100–260V, 50–60 Hz — compatible with virtually any mains supply worldwide.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStable Adjustable Output:\u003c\/strong\u003e DC 11.5V–13.5V at 5A output current, adjustable to compensate for long wiring runs and ensure your electric lock operates correctly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Ripple:\u003c\/strong\u003e Upp ≤50mV for ultra-clean, stable DC output.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Voltage Isolation:\u003c\/strong\u003e 1500V AC isolation for 1 minute without breakdown — safe and reliable design.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAuto Short-Circuit \u0026amp; Overload Protection:\u003c\/strong\u003e Automatically disconnects on short circuit and restores once the fault is cleared. Also includes overheating and over-voltage protection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Reverse Polarity Protection:\u003c\/strong\u003e If the battery is connected incorrectly, only the fuse blows — the power supply unit itself is protected from damage.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmart Battery Charging:\u003c\/strong\u003e 1A trickle charge with automatic cut-off at 13.5V (full charge). LED charge indicator included. Charges a 12V\/7Ah battery in approximately 4 hours.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Over-Discharge Protection:\u003c\/strong\u003e Automatically disconnects battery when voltage drops below 9.5V to preserve data integrity in the access control unit and enable fast recharge.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrue Uninterruptible Switchover:\u003c\/strong\u003e Mains-to-battery switchover time of only 10ms — virtually seamless, zero-downtime power continuity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery Test Button:\u003c\/strong\u003e Built-in battery start button for easy installation testing and diagnostics.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRemote Access Compatible:\u003c\/strong\u003e Integrated remote control output with door-open timing of 0–15 seconds (adjustable). Supports both NC and NO electric lock configurations — works with any standard electric lock.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Controller Signal Input:\u003c\/strong\u003e CONTROL port accepts active signals (DC 5–24V) with internal isolation, allowing simultaneous connection of multiple access control controllers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Ideal for access control, alarm systems, CCTV\/monitoring equipment, and other 12V DC-powered security devices.\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  \u003ctr style=\"background:#f5f5f5;\"\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eInput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eAC 100–260V, 50–60 Hz\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDC 11.5V–13.5V (adjustable)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eOutput Current\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e5A\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eRipple Voltage\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eUpp ≤50mV\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1500V AC \/ 1 min\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCharging Current\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1A (auto cut-off at 13.5V)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Recommended\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e12V 7Ah (not included); ~151mm × 65mm × 100mm\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSwitchover Time\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e≤10ms (mains to battery)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSignal Input\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eDC 5–24V (active, internally isolated)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eDoor Open Timer\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e0–15 seconds (adjustable)\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation \u0026amp; Safety Notes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eInstall in a dry, well-ventilated location. Do \u003cstrong\u003enot\u003c\/strong\u003e install in damp areas or where water ingress is possible.\u003c\/li\u003e\n  \u003cli\u003eThe two red wires are AC 100–260V input. Do not exceed the rated input range.\u003c\/li\u003e\n  \u003cli\u003eThe yellow-green wire must be properly earthed (grounded).\u003c\/li\u003e\n  \u003cli\u003eHigh-voltage components are protected by a clear cover — do \u003cstrong\u003enot\u003c\/strong\u003e open or touch internal components unless you are a qualified professional.\u003c\/li\u003e\n  \u003cli\u003eAlways identify positive (red) and negative (black) battery connections before installing the battery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor general electrical safety guidance, refer to the U.S. Consumer Product Safety Commission – Electrical Safety Guide.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is a battery included with this access control power supply?\u003c\/h4\u003e\n\u003cp\u003eA: No, the battery is not included. We recommend using a 12V 7Ah sealed lead-acid battery (approximate dimensions: 151mm × 65mm × 100mm) for optimal backup performance.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What happens when mains power is cut — will my access control system stay on?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. This unit features a true uninterruptible power supply (UPS) function with a switchover time of just 10ms from mains to battery — so fast that your access control system and electric locks remain fully operational without any interruption.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I connect more than one access control controller to this power supply?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The CONTROL signal input supports active DC 5–24V signals and includes internal isolation, allowing you to connect multiple access control controllers simultaneously without interference.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What types of electric locks is this power supply compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This unit supports both Normally Closed (NC) and Normally Open (NO) electric lock configurations, making it compatible with virtually any standard electric lock used in access control installations.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I adjust the output voltage?\u003c\/h4\u003e\n\u003cp\u003eA: The output voltage is adjustable between 11.5V and 13.5V via the built-in adjustment mechanism. This is particularly useful when wiring runs are long, as voltage drop along the cable can prevent electric locks from operating correctly — simply increase the output voltage to compensate.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is a battery included with this access control power supply?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No, the battery is not included. We recommend using a 12V 7Ah sealed lead-acid battery (approximate dimensions: 151mm × 65mm × 100mm) for optimal backup performance.\"}}, {\"@type\": \"Question\", \"name\": \"What happens when mains power is cut — will my access control system stay on?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. 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