DC 12V 3A/5A Door Access Control Switch Power Supply

LUCKING DOOR DC 12V Switch Power Supply for Door Access Control Systems

Keep your entry points running smoothly and securely with the LUCKING DOOR DC 12V Switch Power Supply. Available in 3A and 5A output options, this compact and reliable power adapter delivers stable DC 12V output from a wide AC 90V–260V input range — making it compatible with virtually any worldwide electrical standard. Built with high-quality electronic components and advanced switching technology, it provides clean, consistent power to fingerprint readers, RFID/IC card readers, electromagnetic locks, exit push buttons, and access controllers. Made in Mainland China.

Key Features

• Direct Electric Lock Control: Powers and controls electric locks directly — no extra relay or controller required.
• Reduces Controller Load: Offloads power demand from your access controller, simplifying wiring and reducing potential installation issues.
• NC / NO Output Selection: Configurable normally-closed or normally-open relay outputs for compatibility with a wide variety of electric lock types.
• Adjustable Lock Delay Timer: Built-in delay control circuit allows lock hold time to be set from 0 to 15 seconds to suit your security workflow.
• Automatic Short-Circuit Protection: Integrated protection circuitry automatically responds to overload or short-circuit events, preventing equipment damage and maintaining system integrity.
• Wide Input Voltage Range: AC 90V–260V input ensures worldwide compatibility whether in a residential, commercial, or industrial setting.
• Anti-Interference Design: High-quality components minimize electrical noise for stable, dependable output across all connected devices.

Compatible Devices

• Electromagnetic (E/M) Locks
• Electric Strike Locks
• Fingerprint Access Control Machines
• RFID / IC Card Readers
• Access Controllers
• Exit Push Buttons

Specifications

Safety & Compliance

When installing any access control power supply, always follow local electrical codes and safety standards. For guidance on electrical safety in commercial and residential installations, refer to OSHA Electrical Safety Guidelines.

Frequently Asked Questions

Q: What is the difference between the 3A and 5A versions of this access control power supply?

A: Both versions output a stable DC 12V. The 3A model (3.5A actual output) is suitable for lighter loads such as a single access controller and card reader, while the 5A model supports heavier loads like electromagnetic locks combined with multiple peripheral devices. Choose based on the total current draw of your connected equipment.

Q: Is this power supply compatible with both fingerprint and RFID access control machines?

A: Yes. This DC 12V switch power supply is designed to work with a broad range of access control devices including fingerprint readers, RFID/IC card readers, electromagnetic locks, electric strike locks, and exit push buttons — making it a versatile choice for most modern access control installations.

Q: Can this unit be used internationally?

A: Absolutely. The wide AC input range of 90V–260V means this power supply is compatible with electrical systems in most countries around the world, whether you are in North America, Europe, Asia, or elsewhere.

Q: What happens if there is a short circuit in the system?

A: This unit features automatic protection circuitry. In the event of a short circuit or overload, the power supply will temporarily disconnect or the internal fuse/auto-protection line will trip to protect your connected equipment from damage.

Q: What output relay modes does this power supply support?

A: The unit supports both Normally Closed (NC) and Normally Open (NO) output configurations, giving you flexibility to control a wide variety of electric lock types used in access control systems.