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White rectangular metal power supply unit for door access control

YINGHUA

YINGHUA 12V5A White Power Supply Door Lock

SKU CH-D9MR-JH00Y

Delivers stable 12 V DC from 90–260 V AC input with adjustable 0–15 s lock delay and automatic short-circuit protection for access-control systems

  • Main functionEntrance
  • Product typeChain Guard
  • Main materialMetal
  • Stable 12 V output powers access-control locks reliably
  • Wide AC 90-260 V input suits global mains voltages
  • Built-in delay circuit sets lock time from 0 to 15 seconds
  • Automatic protection disconnects supply during short-circuit events
  • NC/NO relay outputs control multiple electric-lock types

Power Supply for Access Control

The YINGHUA 12V5A unit delivers regulated DC power to RFID readers fingerprint scanners and electric locks. It accepts a wide AC input range from 90V to 260V making it suitable for standard mains supplies worldwide. The white metal enclosure houses the switch-mode circuitry designed for continuous operation in entrance security systems.

Upgrading from 3A to 5A Output

A 3A supply is adequate when powering a single lock from the same source. Moving to the 5A model provides a more stable current reserve when two locks share one power supply reducing voltage sag during simultaneous activation. The jump is worth it for dual-door installations or where cable runs add resistance to the circuit.

Installers Needing Adjustable Lock Timing

The built-in delay circuit allows the lock release time to be set between 0 and 15 seconds matching different entry requirements. NC and NO outputs let the unit control fail-safe or fail-secure locks without extra relays. Buyers who need integrated battery backup or network monitoring should look at a different product.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $302.99
Pricier than about 90% of the 2,145 comparable items (median $55.99).

Specifications

Product
Product typeChain Guard
Size & build
Main materialMetal
More details
Main functionEntrance

Questions about this item

What AC input voltage range does the 12V5A version accept?

The 12V5A model operates on an AC input range of 90V to 260V, covering most standard mains supplies worldwide.

How is the lock delay time set on this power supply?

A built-in delay circuit lets you adjust the lock release time between 0 and 15 seconds directly on the unit.

What protection activates if the output is shorted?

An automatic protection circuit temporarily disconnects the output or blows the internal fuse until the fault is cleared.

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