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White rectangular metal power supply unit with front terminals

YINGHUA

YINGHUA 12V 3A Access Control Power Supply White

SKU CH-FP9B-K1NXZ

Provides 12 V 3 A DC power for access-control locks and controllers from 110–240 V AC with adjustable 0–15 s delay and short-circuit protection

  • TypeChain Guard
  • MaterialMetal
  • FunctionEntrance
  • Stable DC 12 V 3 A output for reliable lock operation
  • Wide AC 110–240 V input suits global mains voltages
  • Adjustable 0–15 second delay tailors door-release timing
  • Automatic short-circuit protection cuts power to prevent damage
  • Controls locks directly, reducing controller load and wiring complexity

12V 3A Access Control Power Supply

This unit converts standard AC mains voltage into a regulated DC 12V output rated at 3A. It is designed to power electric locks, access controllers, exit buttons and RFID readers in a door entry system. The enclosure is finished in white.

Installers needing adjustable lock timing

The built-in delay circuit allows the lock release time to be set anywhere between 0 and 15 seconds, which suits most standard entry scenarios. Buyers who require a delay longer than 15 seconds or who need multiple independent relay outputs should look at a different controller.

3A continuous output with short-circuit protection

At the rated 3A the supply comfortably runs a single electric lock plus the controller and reader. If the connected load exceeds 3A or a short circuit occurs, the internal protection disconnects the output until the fault is cleared.

Highlights

  • Stable DC 12 V 3 A output for reliable lock operation
  • Wide AC 110–240 V input suits global mains voltages
  • Adjustable 0–15 second delay tailors door-release timing
  • Automatic short-circuit protection cuts power to prevent damage
  • Controls locks directly, reducing controller load and wiring complexity

Specifications

TypeChain Guard
MaterialMetal
FunctionEntrance

Questions about this item

What AC voltage range must my building supply for this 12V 3A power supply to operate?

The unit accepts standard AC 110V to 260V input, so it works on most mains supplies worldwide without a separate transformer.

Can I keep my existing electric lock and exit button when installing this supply?

Yes, it is designed to control E/M locks, access controllers and exit push buttons directly via NC/NO outputs.

How do I verify the delay timer is functioning after wiring the unit?

Trigger the lock and confirm it releases for the set period up to 15 seconds; the built-in delay circuit governs this timing.

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