HPE PSU-550-AC Power Supply

The HPE PSU-550-AC Power Supply is a robust, enterprise-grade 550-watt AC input solution designed to keep critical server environments running smoothly. Built for HPE ProLiant servers and blade systems, this hot-plug power supply delivers dependable performance, streamlined maintenance, and enhanced uptime for data centers, remote offices, and enterprise IT. Whether you’re expanding capacity, upgrading aging hardware, or seeking a spare that aligns with your fault-tolerant strategy, the 550-AC model provides the reliability, efficiency, and safety features necessary to power your essential workloads with confidence.

• Uninterrupted, hot-plug power for high availability: Engineered for rapid field maintenance, the HPE PSU-550-AC can be replaced without powering down the host in many supported configurations. This hot-plug capability minimizes downtime during routine maintenance, sudden failures, or capacity upgrades, helping you maintain service levels for virtualization, databases, and other mission-critical applications.
• 550W continuous power tailored for enterprise workloads: This power supply delivers a stable 550-watt output to support demanding server deployments. With the right chassis and backplane, it supports scalable configurations that align with growing workloads, while maintaining solid headroom for peak demand periods and dynamic workloads common in data-center operations.
• Designed for compatibility with HPE ProLiant ecosystems: The PSU-550-AC is built to integrate seamlessly with HPE ProLiant servers, blade systems, and compatible chassis. Its standardized form factor and HP backplane interface simplify installation, replacement, and inventory management in multi-server environments, reducing downtime and optimizing the maintenance workflow.
• Robust protection and safety features: Protection is a core focus, with comprehensive safeguards such as over-voltage, over-current, short-circuit, and thermal protections. These features help prevent damage to the power supply, server components, and workload integrity, while enabling safe operation across a wide range of environmental conditions.
• Efficient, reliable operation with enterprise-grade cooling: The 550-AC power supply is engineered for efficient performance and durable operation in data-center settings. Its cooling profile and electrical design contribute to lower energy consumption, reduced heat output, and quieter operation in environments where many servers run simultaneously, supporting greener IT practices and lower operating costs.

Technical Details of HPE PSU-550-AC Power Supply

• Model: HPE PSU-550-AC Power Supply
• Power rating: 550W continuous output for reliable server power
• Input voltage: 100–240V AC, 50/60 Hz (universal input for global operation)
• Efficiency: 80 Plus-certified design for energy efficiency and reduced operating costs
• Form factor and interface: Hot-plug-compatible power supply designed for HPE backplanes and server chassis
• Protection features: Over-voltage, over-current, short-circuit, and thermal protection to safeguard equipment and data
• Operating environment: Built to perform in data-center environments with reliable operation across typical server room temperatures
• Compliance: RoHS-compliant with standard industry certifications such as UL and CE
• Maintenance and serviceability: Hot-swappable design enables quick replacement with minimal downtime

how to install HPE PSU-550-AC Power Supply

Installing the HPE PSU-550-AC is straightforward when you follow these steps. Always refer to your server’s service guide for model-specific instructions and safety precautions. Prepare a clean work area, ensure you have the correct spare PSU module, and follow proper electrostatic discharge (ESD) precautions during handling.

1. Power down and prepare: If you’re replacing an existing PSU, power down the server according to your shutdown procedures and unplug the power cords. If you’re performing a routine swap in a live environment, verify that hot-swap capabilities are supported for your chassis configuration.
2. Open the chassis and locate the spare bay: Access the server’s PSU bays or hot-swap backplane. Identify the appropriate hot-plug slot reserved for spare or redundant power modules.
3. Remove the old PSU (if applicable): If replacing an existing unit, release the latch or lever that holds the current PSU in place. Gently slide the unit out of the bay, taking care not to damage connectors or cables.
4. Install the new PSU: Align the HPE PSU-550-AC with the bay guides and slide it into the slot until the latch engages. Ensure that the backplane connectors seat fully and that the unit is firmly seated in the bay.
5. Reconnect and power up: Reconnect the power input to the PSU if required by your configuration. Close the chassis, restore power, and power on the server. Observe the LED indicators on the PSU to confirm proper operation.
6. Verify operation: Once powered, verify that the server recognizes the new PSU in its management software or hardware status indicators. Check that the system is showing healthy redundancy if you’re using a multi-PSU setup.

Frequently asked questions

• What systems is the HPE PSU-550-AC compatible with? The PSU-550-AC is designed for HPE ProLiant servers and compatible HP blade systems. For exact compatibility, consult your server’s maintenance and service guide or the product compatibility matrix in your region.
• Does this power supply support redundant configurations? Yes. The HPE PSU-550-AC is built for hot-swappable operation in environments that use redundant power configurations, helping maximize uptime in data-center deployments.
• What about energy efficiency? The unit features an 80 Plus-certified design to promote energy efficiency, reduce operating costs, and contribute to greener IT practices in the data center.
• What safety features are included? It includes over-voltage, over-current, short-circuit, and thermal protection to safeguard both the power supply and your server hardware under varying loads and environmental conditions.
• What is the warranty or support availability? Warranty terms vary by region and vendor. Check with your distributor or HP support channel for the exact warranty period and coverage for the PSU-550-AC in your location.