APC 0U 208V 24-Outlets Switched Rack Power Distribution Unit

Overview

The APC AP8961 is a switched rack power distribution unit designed to deliver 208-volt power efficiently within server racks while saving horizontal space by mounting vertically in the 0U channel. It features twenty-one C13 outlets and three C19 outlets, supporting a total load capacity of 5.7 kW, making it suitable for powering a variety of equipment such as servers, storage arrays, and network switches. This unit offers remote outlet control and real-time current monitoring, helping administrators manage power distribution and prevent overloads without needing physical access to the rack.

Key features

• Vertical 0U rack mount design that preserves valuable horizontal rack space for other equipment
• Remote outlet control via web browser, SNMP, or Telnet, allowing administrators to reboot devices or schedule power sequences remotely
• Real-time current metering displayed locally and over the network to monitor power usage accurately
• User-defined alarms that alert when power consumption approaches circuit limits, reducing the risk of breaker trips
• Support for an optional temperature or humidity sensor to extend environmental monitoring inside the rack
• Input plug with NEMA L21-20P configuration providing three-phase 208-volt power for high-density data center environments
• Integration with APC management software for unified monitoring alongside UPS systems and other infrastructure components

Key specs

• Outlets: 21 C13 and 3 C19
• Input voltage: 208 V three-phase
• Maximum load capacity: 5.7 kW
• Mounting: 0U vertical rack mount
• Dimensions: 70.5 in × 2.2 in × 1.8 in
• Weight: 15.2 lb
• Input plug type: NEMA L21-20P

Connectivity and compatibility

This power distribution unit connects to three-phase 208-volt power sources using a NEMA L21-20P input plug, which is common in enterprise data centers and colocation facilities. Its mix of C13 and C19 outlets supports a wide range of rack-mounted equipment, including servers, switches, and storage devices. Remote management capabilities via web, SNMP, and Telnet protocols ensure compatibility with standard IT infrastructure monitoring tools.

Performance and reliability

The AP8961 offers precise current metering and user-configurable alarms to help prevent overloads that could disrupt operations. Its ability to remotely control individual outlets reduces downtime by enabling quick reboots of unresponsive devices without physical intervention. The option to add environmental sensors further enhances reliability by monitoring temperature and humidity conditions that affect equipment health.

Ideal uses and environments

This PDU is well suited for high-density data centers, enterprise server rooms, research laboratories, and colocation facilities where space efficiency and reliable power management are critical. IT teams benefit from its remote control and monitoring features, which simplify power management tasks and improve uptime. Its vertical mounting design makes it a strong choice for racks where horizontal space is at a premium.