APC AP9551 Rack-Mount PDU — 120V, 20A, 14 Outlets

Designed for professional IT environments, the APC AP9551 Power Distribution Unit delivers reliable, plug‑and‑play power distribution for servers, switches, storage, and network gear in compact rack enclosures. Built by Schneider Electric, a global leader in data center infrastructure, this PDU focuses on durability, simple cable management, and consistent 120V power delivery in a standard 19‑inch rack. With a 1920 VA load rating and a 20A current capacity, it is well-suited for mid‑sized racks in data centers, server rooms, labs, or edge deployments. The AP9551’s rugged black enclosure is engineered for continuous operation, helping IT teams minimize downtime while keeping power organized and accessible. Whether you’re reorganizing a legacy rack or deploying a new one, this PDU provides reliable, straightforward power distribution to keep your equipment running smoothly.

• Rack‑mountable 1U design compatible with standard 19‑inch racks for quick deployment in data centers, server rooms, and network closets. The slim footprint helps maximize cabinet space while delivering a dependable power distribution solution for multiple devices.
• Versatile outlet configuration with 14 NEMA 5‑15R receptacles to support most common IT devices. This arrangement simplifies cabling and ensures convenient access to power for servers, switches, storage units, and networking gear within a single rack footprint.
• Robust power input and output specifications: accepts 100–120 V input with a 120 V output, delivering a stable distribution path for critical equipment. A 1920 VA load capacity and 20 A rating provide ample headroom for a balanced mix of devices in typical rack deployments.
• Durable, black enclosure built for reliability in demanding environments. Designed for 24/7 operation, it stands up to routine maintenance cycles and intensive workloads while helping to manage power in a neat, organized fashion. The AP9551 is backed by a solid warranty to protect your investment.
• Ideal for IT ecosystems including servers, routers, switches, and storage arrays. This PDU simplifies power distribution planning, supports clean cable management, and integrates smoothly with standard rack architectures, making it a practical choice for both new installations and upgrades to existing cabinets.

Technical Details of AP9551

• Model: AP9551
• Brand: APC by Schneider Electric
• Product Type: Power Distribution Unit (PDU)
• Mounting: Rack‑mountable (19‑inch rack standard)
• Color: Black
• Input Voltage: 100–120 VAC
• Input Connector: NEMA L5‑20P
• Output Voltage: 120 VAC
• Output Connectors: 14 × NEMA 5‑15R outlets
• Load Capacity: 1920 VA
• Current Rating: 20 A
• Warranty: 2 years

How to Install AP9551 PDU

• Step 1: Prepare your rack. Ensure the cabinet is clean, ventilation is adequate, and there is a stable power source nearby. Verify that the rack supports a standard 19‑inch mounting footprint suitable for the AP9551.
• Step 2: Mount the PDU in the rack. Align the chassis with the rack rails and secure the unit using the appropriate screws in the top and bottom mounting points. Confirm the PDU is firmly attached and level to prevent movement during cable management.
• Step 3: Connect the input power. With the power off, connect the NEMA L5‑20P input connector to your main power source or distribution strip. Ensure the outlet supplying the PDU is capable of delivering up to 20 A and is properly grounded.
• Step 4: Arrange and connect devices. Use the 14 NEMA 5‑15R outlets to distribute power to servers, switches, storage devices, and other critical equipment. Group devices by priority and ensure that the total connected load does not exceed the 1920 VA rating and the 20 A current limit.
• Step 5: Power on and verify. Restore power and verify that each outlet provides 120 V to its connected device. Label cables for easy maintenance and monitor any changes in load distribution as equipment is added or removed from the rack.

Frequently asked questions

• Q: What input and output voltages does the AP9551 support?
  A: The AP9551 supports 100–120 VAC input and provides 120 VAC output, suitable for most North American IT equipment in standard data centers and server rooms.
• Q: How many outlets does the AP9551 have and what type are they?
  A: The AP9551 features 14 NEMA 5‑15R outlets, providing convenient power connections for a range of devices in a single rack.
• Q: What is the maximum load and current rating?
  A: The unit offers a load capacity of 1920 VA with a 20 A maximum current rating, supporting a typical mix of servers, switches, and storage in a rack environment.
• Q: Is the AP9551 suitable for rack installations?
  A: Yes. The AP9551 is designed for rack‑mount installations in standard 19‑inch racks, making it ideal for data centers, server rooms, and network closets.
• Q: What warranty comes with the AP9551?
  A: The AP9551 is backed by a 2‑year warranty, reflecting Schneider Electric’s commitment to reliability and long‑term support for critical IT infrastructure.
• Q: Where is the AP9551 typically used?
  A: It is commonly deployed in data centers, edge installations, labs, and IT rooms where organized, reliable power distribution is required for multiple devices within a single rack.