APC AP4452 Rack Auto Transfer Switch

The APC AP4452 is a rack auto transfer switch that keeps single-corded equipment running even when the primary power feed fails. The unit installs in just 1U of rack space and automatically moves the load to a secondary source, so servers, storage arrays, network gear, or lab instruments stay on without manual intervention.

Power enters through two eight-foot cords fitted with NEMA L5-20P plugs. The switch supplies up to 1920 VA at 120 V across ten NEMA 5-20R outlets, and completes the transfer in less than 10 milliseconds. That speed is quick enough that most connected devices never notice the change.

Day-to-day oversight is simple. A front color LCD shows real-time voltage, current, and status, while an integrated 10/100 RJ45 port and serial connection allow remote monitoring, alerts, and firmware updates from any standard network management platform.

Because it operates between -5 and 45°C and up to 10,000 feet, the AP4452 fits comfortably in data centers, branch offices, and remote sites where conditions vary. Administrators who want a space-saving way to add redundancy to appliances with only one power supply will find it a straightforward, reliable solution.

• Occupies only 1U of rack space, freeing room in crowded racks
• Delivers 1920 VA at 120 V to support demanding loads
• Ten NEMA 5-20R outlets accommodate multiple single-corded devices
• Two eight-foot input cords with NEMA L5-20P plugs provide independent power sources
• Transfers between sources in under 10 milliseconds
• Integrated network and serial interfaces enable remote monitoring and control
• Supports 50/60 Hz operation with a 20 A maximum input current
• Front color LCD supplies local power information and configuration
• Reliable performance from -5 to 45°C and at altitudes up to 10,000 feet
• RoHS compliant construction aligns with environmental standards