APC AP4452A

Overview

The APC AP4452A is an automatic transfer switch designed to provide a redundant power path for single-cord devices in a compact 1U rack-mount form factor. It monitors two independent 120 V, 20 A power sources and switches the load to the secondary input in less than 10 milliseconds if the primary source fails. This rapid transfer ensures critical equipment such as servers, switches, and storage arrays remain operational without interruption or reboot.

Equipped with ten NEMA 5-20R outlets on the rear panel, it can power multiple devices within a small rack or edge cabinet. The dual NEMA L5-20P inputs allow connection to separate branch circuits or UPS systems, supporting high-density equipment without risk of overloading.

Key features

• 1U rack-mount design that fits easily into standard server racks and edge cabinets
• Automatic transfer between two 120 V, 20 A power sources with a transfer time under 10 milliseconds to prevent downtime
• Ten NEMA 5-20R outlets provide ample power distribution for multiple devices in a single rack
• Dual NEMA L5-20P inputs enable connection to separate power feeds or UPS systems for true redundancy
• Onboard APC NMC3 network management card allows real-time load monitoring, alarm configuration, and controlled transfer via web interface, SNMP, or command-line interface
• Compatibility with EcoStruxure IT for centralized monitoring and fleet-wide management of power infrastructure
• Simple installation process with straightforward mounting and plug-in connections
• Includes a 2-year warranty with an option to extend coverage to 5 years for added peace of mind

Key specs

• Form factor: 1U rack-mount
• Input voltage: 120 V AC
• Input current rating: 20 A
• Number of outlets: 10 NEMA 5-20R
• Input connectors: Dual NEMA L5-20P
• Transfer time: less than 10 milliseconds
• Network management: APC NMC3 card with web, SNMP, and CLI support
• Warranty: 2 years standard, optional 5-year extension

Connectivity and compatibility

The AP4452A supports connection to two independent power sources, such as separate branch circuits or uninterruptible power supplies, ensuring continuous power availability. Its ten NEMA 5-20R outlets accommodate a variety of rack-mounted equipment with standard 120 V plugs. The built-in network management card integrates seamlessly with existing IT infrastructure, allowing remote monitoring and control through common protocols and interfaces.

Installation and setup

Installation is straightforward and designed for quick deployment in data centers, branch offices, or edge environments. Simply mount the unit in a standard 19-inch rack, connect the two power inputs to separate sources, and plug in your equipment. The included network management card requires minimal configuration to enable remote monitoring and control, helping you maintain uptime with minimal effort.

Ideal uses and environments

This automatic transfer switch is well suited to environments where equipment has a single power inlet but cannot afford downtime, such as branch offices, colocation cages, edge compute nodes, and labs. It supports high-density racks and is a strong choice for IT professionals who need reliable power redundancy without complex infrastructure changes. Its rapid transfer time and network management capabilities make it a practical solution for maintaining continuous operation in critical setups.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

Non-returnable items include opened TVs, combos, or monitors 37″ or larger, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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