DC 12V 3.5A/5A Access Control Switch Power Supply
DC 12V 3.5A/5A Access Control Switch Power Supply
DC 12V Access Control Switch Power Supply — 3.5A & 5A Options
Power your door access control system with confidence. This wide-range switching power supply (AC 90–260V input, DC 12V output) is engineered with high-quality electronic components and advanced circuitry to deliver stable, reliable power to fingerprint readers, RFID/IC card readers, electromagnetic locks, electric strike locks, exit push buttons, and access controllers.
Which Output Should You Choose?
- 12V 3.5A — Ideal for setups powering a single electric lock and its controller.
- 12V 5A — Recommended when powering two locks simultaneously for maximum stability and headroom.
Key Features
- Direct lock control — drives your electric lock directly without extra relays in most setups.
- Reduced controller load — offloads power demand from the access controller, simplifying wiring.
- NC / NO output selection — compatible with fail-safe and fail-secure electric locks.
- Adjustable lock-release delay — configurable from 0 to 15 seconds via the onboard delay circuit.
- Automatic short-circuit protection — built-in auto-fuse and protection circuit disconnects power during fault conditions to safeguard your hardware.
- Wide universal input voltage — AC 90V–260V, suitable for use in North America, Europe, Asia, and beyond.
- Anti-interference design — robust filtering ensures clean, stable DC output even in electrically noisy environments.
Technical Specifications
- AC Input: 90V – 260V (universal)
- DC Output: 12V / 3.5A | 12V / 5A
- Security Mode: Fail Safe with Signal
- Model: YQ-S6
- Compatible Devices: Electromagnetic locks, electric strikes, access controllers, exit push buttons, RFID/IC card readers, fingerprint access machines
- Country of Origin: Made in China
Compatible With
- Fingerprint & biometric access control machines
- RFID / IC card readers
- Electromagnetic (E/M) locks & electric strike locks
- Exit push buttons & door release buttons
- Access controller boards
For guidance on safe electrical installation practices, refer to the OSHA Electrical Safety guidelines.
Frequently Asked Questions
Q: What is the difference between the 12V 3.5A and 12V 5A access control power supply versions?
A: The 12V 3.5A version provides sufficient power for a single electric lock along with its access controller and reader. If your setup requires two electric locks running from the same power supply, the 12V 5A version offers greater stability and current headroom, making it the recommended choice for dual-lock configurations.
Q: Is this access control power supply compatible with both fail-safe and fail-secure electric locks?
A: Yes. The unit features selectable NC (Normally Closed) and NO (Normally Open) output terminals, allowing it to work with both fail-safe (power-to-lock, NC) and fail-secure (power-to-open, NO) electric lock types.
Q: Can this switch power supply be used internationally with different mains voltages?
A: Absolutely. The universal AC input range of 90V–260V means this unit is compatible with mains supplies found worldwide, including North American 110V and European/Asian 220–240V systems, with no need for a separate voltage converter.
Q: What happens if there is a short circuit in my access control wiring?
A: The built-in automatic protection circuit is designed to respond to short-circuit events by temporarily disconnecting output power or triggering the auto-fuse, helping to protect both the power supply and connected devices from damage.