DC 12V 5A Access Control Power Supply | Backup Battery Interface

DC 12V 5A Access Control Power Supply with Backup Battery Interface

Keep your RFID card access control system running reliably with this robust DC 12V 5A power adapter (Model: LK1205) by Asia-Teco. Engineered specifically for electronic locks, door controllers, and access control accessories, this power supply accepts a wide AC input range of 100–240V, making it compatible with power grids worldwide.

Optional Backup Battery Support — Stay Secure During Outages

This unit features a dedicated backup battery interface supporting a 12V 7Ah battery (DC 12.5–14V). When connected to an optional backup battery, your access control system can continue operating for 3–5 hours during a power interruption — so your doors, locks, and readers never go unexpectedly offline.

Please note: The basic 12V version without a battery interface does not include this backup capability. Ensure you select the correct variant for your installation needs.

Key Features

• Wide Input Voltage: AC 100–240V — compatible with global power standards
• Output: DC 12V / 5A (options also available in 3A)
• Backup Battery Interface: Supports 12V 7Ah battery (DC 12.5–14V) for 3–5 hours of backup operation
• Fail-Safe Security Mode: Ensures doors default to a safe state in the event of a fault
• Overload Protection: Gradual shutdown on output overload; immediate shutdown on output short circuit
• Visual Fault Indicator: Flashing red LED signals overload or short-circuit conditions
• Auto-Recovery: Automatically restores output once an overload or short is removed — no manual reset needed
• Designed for Access Control: Ideal for electric locks, magnetic locks, door controllers, and RFID readers
• Model Number: LK1205

Technical Specifications

Who Is This For?

This power supply is ideal for security installers, facility managers, home automation enthusiasts, and anyone setting up or maintaining a card-based or RFID access control system. Whether you're powering a single-door controller or a multi-door setup, the LK1205 provides stable, protected power output with the peace of mind of automatic fault recovery.

For more information on electrical safety standards for power supplies and access control systems, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: Does this access control power supply work with international voltages?

A: Yes. The Asia-Teco LK1205 accepts a wide AC input range of 100–240V, making it compatible with power outlets in the US, Europe, Asia, and most other regions worldwide.

Q: What backup battery do I need for this power supply?

A: This unit supports a 12V 7Ah battery with a DC voltage of 12.5–14V. When connected, the backup battery can keep your access control system running for approximately 3–5 hours during a power outage. The battery is sold separately.

Q: What happens if there is a short circuit or overload?

A: The LK1205 is designed with built-in protection. On a short circuit, the unit immediately shuts down output and signals the fault with a flashing red LED. On overload, it gradually reduces output. Once the fault condition is cleared, the unit automatically recovers — no manual reset is required.

Q: Is this power supply compatible with RFID card readers and electric locks?

A: Yes. This power supply is specifically designed for access control systems, including RFID card readers, electromagnetic locks (maglocks), electric strike locks, and door controllers that operate at DC 12V.

Q: What is Fail Safe mode?

A: Fail Safe means that in the event of a power failure or fault, the connected locks or devices will default to an unlocked (open) state, ensuring people can safely exit a building or secured area. This is a common requirement in fire-safety and emergency egress scenarios.