12V Access Control Power Supply Relay Switch – Adjustable Delay
12V Access Control Power Supply Relay Switch – Adjustable Delay
Asia-Teco 12V Access Control Power Supply with Relay Switch & Adjustable Time Delay
The Asia-Teco KDB05-5A 12V DC Power Supply 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.
Made in Mainland China.
Key Features
- Adjustable Time Delay: 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.
- Comprehensive Protection: Built-in safeguards against overload, over-current, over-voltage, and short-circuit keep your system and connected hardware safe.
- Low Noise Output: Minimal electromagnetic interference ensures reliable performance alongside RFID card readers and other access control components.
- High Drive Capacity: 5A output current (36W) provides sufficient momentary current to operate the majority of electric locks on the market.
- Wide Input Voltage Range: Accepts AC 100V–240V, 50–60Hz — compatible with power grids worldwide.
- High-Efficiency Filtered Output: 0.5% output stability (typical) with low-interference filtered output for consistent lock operation.
- Compact & Lightweight: Metal enclosure measures just 92mm × 68mm × 31mm and weighs only 290g — easy to mount in tight spaces.
- Wide Operating Temperature: Rated for -20°C to 65°C, suitable for both indoor and outdoor installations.
Specifications
| Model | KDB05-5A |
| Input Voltage | AC 100V–240V, 50–60Hz |
| Output Voltage | DC 12V |
| Output Current | 5A |
| Output Power | 36W |
| Output Stability | 0.5% Typical |
| Locking Delay | Adjustable 0–20 seconds |
| Operating Temperature | -20°C to 65°C |
| Dimensions | 92mm × 68mm × 31mm |
| Net Weight | 290g |
| Material | Metal |
| Brand | Asia-Teco |
What's in the Box
- 1 × Asia-Teco KDB05-5A 12V Access Control Power Supply
Safety & Installation Reference
For guidance on electrical safety practices when installing access control hardware, visit the OSHA Electrical Safety resource. Always consult a licensed electrician if you are unsure about wiring or installation requirements.
Frequently Asked Questions
Q: What types of electric door locks is this 12V power supply compatible with?
A: 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.
Q: How do I set the time delay on this relay switch?
A: 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.
Q: Will this power supply work with my RFID card reader?
A: 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.
Q: Is this unit suitable for outdoor or temperature-variable installations?
A: 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.
Q: Does this power supply include short-circuit and over-voltage protection?
A: 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.