DC 12V Access Control Power Supply w/ Backup Battery Port

Asia-Teco DC 12V Access Control Power Supply with Backup Battery Interface

Keep your RFID card access control system running reliably with this robust DC 12V 3A/5A Power Supply from Asia-Teco (Models KD1203 / KD1205). Designed specifically for electronic locks and access control accessories, this unit accepts a wide-range AC input of 100–240V, making it compatible with power grids worldwide. The built-in backup battery interface (12V 7Ah / DC 12.5–14V) keeps your system operational for 3–5 hours during a power outage, ensuring uninterrupted security coverage.

Made in Mainland China.

Key Features

• Wide AC Input: AC 100–240V — works with virtually any standard wall outlet globally
• Stable DC Output: 12V at 3A or 5A to power electronic locks and access control boards
• Backup Battery Interface: Supports 12V 7Ah batteries (DC 12.5–14V) for 3–5 hours of backup runtime during outages
• Fail-Safe Security Mode: Automatically defaults to a safe state in the event of power loss
• Smart Fault Protection: Gradual shutdown on output overload; immediate shutdown on output short circuit — indicated by a flashing red LED
• Auto-Recovery: Automatically restores output once a short circuit or overload condition is cleared
• Compatible With: RFID card readers, electromagnetic locks, electric strikes, and other access control accessories
• Models: KD1205 (12V 5A) / KD1203 (12V 3A)

Specifications

Why Choose This Access Control Power Supply?

Whether you're securing a small office, a warehouse entrance, or a residential building, this power supply delivers the consistent, clean DC power that access control systems demand. The wide-input voltage range eliminates compatibility concerns, while the intelligent fault response system ensures your hardware is protected from overload and short-circuit events. The backup battery interface adds an extra layer of reliability — so a power cut doesn't mean a security gap.

For general guidance on physical access control and security system best practices, visit the Cybersecurity & Infrastructure Security Agency. You can also explore electrical safety standards at OSHA's Electrical Safety resource.

Frequently Asked Questions

Q: What backup battery does this access control power supply support?

A: This power supply is compatible with 12V 7Ah sealed lead-acid batteries with a charging voltage of DC 12.5–14V. With a suitable battery connected, the system can continue operating for approximately 3–5 hours during a power outage. Note: the backup battery is not included.

Q: What is the difference between the KD1205 and KD1203 models?

A: The KD1205 provides a DC 12V 5A output, while the KD1203 provides a DC 12V 3A output. Choose the 5A model for systems with higher current demands (e.g., multiple locks or larger electromagnetic locks) and the 3A model for lighter-duty or single-lock installations.

Q: Is this power supply compatible with RFID card access control systems?

A: Yes. This unit is specifically engineered to power RFID card readers, electromagnetic locks, electric strikes, and associated access control accessories that require a stable 12V DC supply.

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

A: The power supply features intelligent fault protection. On an overload, output is gradually reduced to protect the connected equipment. On a short circuit, output shuts down immediately and a red LED flashes to indicate the fault. Once the fault condition is cleared, the unit automatically recovers — no manual reset required.