Locknetics PS904-4RL-FA Power Supply Amps

For reliable, always-on access control power, the Locknetics PS904-4RL-FA Power Supply provides stable, supervised low-voltage output tailored for security and monitoring installations. Built for system integrators and facility managers, this Class 2 power supply delivers up to 4A of filtered, regulated current with selectable 12V or 24V outputs, ensuring consistent performance for electrified strikes, electromagnetic locks and card readers. Onboard AC input and DC output monitoring LEDs plus isolated SPDT contacts simplify integration with alarm panels and building management systems, while the automatic battery back-up board preserves operation during power loss. The compact enclosure and polarized option-board connectors reduce installation time and wiring complexity, making the PS904-4RL-FA a practical fit for retrofit and new-build access control projects. RoHS compliant and designed for demanding security environments, it supports surveillance and monitoring applications where uptime and supervision matter. Specify the Locknetics PS904-4RL-FA for turnkey power reliability—order now or contact your sales representative to discuss system compatibility and deployment.

• Delivers dependable, filtered Class 2 low-voltage power to keep access control devices online and reduce nuisance faults
• Selectable 12V/24V output with 4A total capacity to support electrified strikes, electromagnetic locks and card readers without guesswork
• Integrated AC/DC monitoring with visible LEDs and isolated SPDT contacts for easy supervision and alarm integration
• Automatic battery back-up voltage selection and compact enclosure simplify installation and ensure continuous operation during outages
• Optional plug-in fire alarm board and polarized option-board connectors streamline system expansion and field maintenance