12V 3A Power Supply Transformer for Access Control Devices Description This 12V 3A power supply transformer is designed to provide the correct voltage and current for common access control devices. It delivers a steady 12 volt output at up to 3 amps, making it suitable for powering magnetic locks, electric strikes, and motorized bolts used in door control systems. Key benefits Provides the required 12V DC power at up to 3A so access control devices receive consistent voltage and perform as intended. Simplifies system setup by providing a dedicated power source for locks and strikes, avoiding overloaded circuits from shared supplies. Reduces troubleshooting time by supplying a clear, singlepoint power source for door hardware. Function and compatibility Function: converts mains power to a regulated 12V output rated at 3A for access control equipment. Compatible with magnetic locks, electric strikes, and motorized bolts rated for 12V operation and within the 3A current limit. Suitable for integration with access control panels, keypads, and standalone lock installations. Key attributes Output: 12V at 3A rating to support most singledoor locking devices. Intended use: power supply for access control hardware such as magnetic locks, electric strikes, and motorized bolts. Installation: intended for use in access control cabinets, behind panels, or other standard electrical enclosures where a dedicated 12V supply is required. Performance: rated to provide continuous 12V output up to the 3A limit to match device requirements. Practical use scenarios Office entrance: power a failsafe magnetic lock on a single office door together with an access control reader. Apartment entry: supply an electric strike on a residential building main entry door controlled by an intercom or access panel. Small warehouse gate: power a motorized bolt on an internal gate or secondary security door where a compact 12V source is needed. Notes for selection Verify that the target device is rated for 12V and that its current draw does not exceed 3A. For installations with multiple locks or higher current requirements, select a power supply with an appropriate higher amperage rating. This power supply transformer provides a straightforward way to power standard 12V access control devices while keeping wiring and system design simple and predictable.