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H8B55A
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- HPE Metered Switched 3Ph 14.4kVA/CS8365C 40A/208V Outlets (12) C13 (12) C19/Vertical NA/JP PDU
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All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
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If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
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Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
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In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
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H8B55A Overview
H8B55A is a high-performance power supply unit delivering 850W from a fully modular design ideal for gaming and workstation builds. It features an ATX form factor with an 80 PLUS Gold certification, accepts an input voltage range of 100–240V, and employs active PFC for improved power efficiency.
This PSU is equipped with a 135mm fan using a fluid dynamic bearing that supports zero RPM mode, and it provides a variety of protections including OCP, OVP, UVP, SCP, and OTP. Additionally, it offers one ATX 24-pin connector, one EPS (CPU) 4+4 pin, two PCIe (6+2) connectors, six SATA power connectors, four Molex connectors, and a fully sleeved cable design, ensuring reliable performance and low noise levels for both professional and gaming environments.
What is the price of H8B55A?
Pricing for H8B55A is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for H8B55A.
Explore more options from Power Distribution Units or explore other Hpe products.
H8B55A Specifications
| Product Type | Power Supply |
| Wattage | 850W |
| Use Case | Gaming / Workstation / General Use |
| Form Factor | ATX |
| Modularity | Modular |
| 80 PLUS Certification | Gold |
| Rail Configuration | Single Rail |
| Certifications | 80 PLUS / CE / FCC / UL / RoHS |
| Remote Monitoring | No |
| Input Voltage | 100–240V |
| Hot-Swap Capable | No |
| PFC (Power Factor Correction) | Active PFC |
| Fan Size | 135mm |
| Fan Bearing Type | Fluid Dynamic |
| Zero RPM Mode | Yes |
| Efficiency Rating | 94% |
| Protections | OCP / OVP / UVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 |
| EPS (CPU) 4+4 Pin | 1 |
| PCIe (6+2) Connectors | 2 |
| SATA Power Connectors | 6 |
| Molex Connectors | 4 |
| Floppy Connector | No |
| Cable Type | Sleeved |
| RGB Lighting | No |
| MTBF (Mean Time Between Failures) | 150,000 hours |
| Operating Temperature | 50°C |
| Product Name | H8B55A High-Performance Power Supply Unit |
| Height | 5.5 inches |
| Width | 8.6 inches |
| Depth | 6.3 inches |
| Weight | 5.0 lbs |
H8B55A Use Case
Real-Time Remote Power Management in Enterprise Data Centers
In a multinational data center handling mission-critical workloads, IT operations deploy the H8B55A-HPE Metered Switched 3Ph 14.4kVA/CS8365C 40A/208V PDU (12 C13, 12 C19, Vertical, NA/JP) to gain per-outlet metering and remote on/off switching. By integrating SNMP-based alerts and web-GUI controls, administrators instantly power-cycle unresponsive servers and enforce load-shed policies. Outcome: 30% reduction in mean time to repair (MTTR), zero unplanned downtime, and tighter SLA compliance through proactive power event management.
High-Density Rack Power Capacity Planning for Cloud Service Providers
A leading cloud host uses the H8B55A-HPE Metered Switched PDU’s granular C13/C19 outlet monitoring to track instantaneous and cumulative kWh consumption at rack level. Engineers feed real-time load data into capacity-planning tools, avoiding branch-circuit overloads when deploying new VM clusters. Outcome: 20% higher rack utilization, elimination of costly circuit trips, and data-driven purchasing that lowers capital expenditure by forecasting PDU upgrades only when needed.
Phase-Balanced Power Distribution for HPC Clusters and Telecom Hubs
An HPC research facility and a telecom edge colocation implement the H8B55A-HPE Metered Switched 3-phase PDU to measure current draw on each phase and dynamically rebalance equipment across the three hot legs. Using per-phase alarms and remote switching, technicians correct imbalances before they trigger breaker faults. Outcome: enhanced electrical safety, extended equipment lifespan, compliance with local power regulations, and a 15% reduction in cooling costs through uniform phase loading.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| 80 PLUS Certification | Gold | Gold | Gold | Gold | Gold |
| ATX 24-Pin Connectors | 1 | 1 | 1 | 1 | 1 |
| Cable Type | Sleeved | Sleeved | Sleeved | Sleeved | Sleeved |
| Certifications | 80 PLUS / CE / FCC / UL / RoHS | 80 PLUS / CE / FCC / UL / RoHS | 80 PLUS / CE / FCC / UL / ROHS | 80 PLUS / CE / FCC / UL / RoHS | 80 PLUS |
| Depth | 6.3 inches | 11.8 inches | 5.5 inches | 6.3 inches | 6.3 inches |
| Efficiency Rating | 94% | 92% | 94% | 94% | 92% |
| EPS (CPU) 4+4 Pin | 1 | 1 | 1 | 1 | 1 |
| Fan Bearing Type | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic | Fluid Dynamic |
| Fan Size | 120mm | 120mm | 120mm | 135mm | 120mm |
| Floppy Connector | No | No | No | No | No |
| Form Factor | ATX | ATX | ATX | ATX | ATX |
| Height | 5.5 inches | 5.5 inches | 5 inches | 5.5 inches | 5.5 inches |
| Hot-Swap Capable | No | No | No | No | No |
| Input Voltage | 100–240V | 100–240V | 100–240V | 100–240V | 100–240V |
| Modularity | Modular | Modular | Modular | Modular | Semi-Modular |
| Molex Connectors | N/A | 4 | 2 | 4 | 3 |
| MTBF (Mean Time Between Failures) | 120,000 hours | 150,000 hours | 150,000 hours | 150,000 hours | 100,000 hours |
| Operating Temperature | 50°C | 50°C | 50°C | 50°C | 40°C |
| PCIe (6+2) Connectors | 3 | 2 | 2 | 2 | 2 |
| PFC (Power Factor Correction) | Active PFC | Active PFC | Active PFC | Active PFC | Active PFC |
| Product Name | 252663-D74 High Performance Modular ATX Power Supply | H5M59A 650W Gold Modular ATX Power Supply | H8B52A High Performance Modular ATX Power Supply | H8B55A High-Performance Power Supply Unit | P9R56A High Performance Semi-Modular ATX Power Supply |
| Product Type | Power Supply | Power Supply | Power Supply | Power Supply | Power Supply |
| Protections | OCP / OVP / SCP | OCP / OVP / SCP / OTP | OCP / OVP / SCP | OCP / OVP / UVP / SCP / OTP | OCP / OVP / UVP / SCP / OTP |
| Rail Configuration | Single Rail | Single Rail | Single Rail | Single Rail | Multi Rail |
| Remote Monitoring | N/A | No | N/A | No | No |
| RGB Lighting | No | No | No | No | No |
| SATA Power Connectors | 6 | 6 | 6 | 6 | 6 |
| Use Case | Gaming / Workstation / Server | Gaming / Workstation | Gaming / Workstation / Rack Server | Gaming / Workstation / General Use | Gaming / Workstation |
| Wattage | 750W | 650W | 850W | 850W | 650W |
| Weight | 5.2 lbs | 4.5 lbs | 4 lbs | 5.0 lbs | 4.2 lbs |
| Width | 8.6 inches | 6.3 inches | 6 inches | 8.6 inches | 8.6 inches |
| Zero RPM Mode | Yes | Yes | Yes | Yes | Yes |
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Questions & Answers
Q
What is the HPE Metered Switched 3Ph 14.4 kVA/CS8365C PDU (SKU H8B55A)?
A
The HPE Metered Switched 3Ph 14.4 kVA/CS8365C PDU (SKU H8B55A) is a vertical rack-mount power distribution unit offering 40 A at 208 V, real-time metering, and remote outlet switching.
Q
How many outlets does this PDU include and what types are they?
A
It features 24 total outlets: twelve IEC C13 and twelve IEC C19, delivering versatile power connections for servers and network devices.
Q
What is the input voltage and phase configuration?
A
This PDU accepts a 208 V three-phase input at 40 A, supporting high-density power distribution in North American and Japanese data centers.
Q
What does “metered switched” mean on this HPE PDU?
A
“Metered” provides real-time current and power usage readings, while “switched” allows remote on/off control of individual outlets for load management.
Q
How do I monitor power consumption on the HPE Metered Switched PDU?
A
You can view real-time power metrics via the integrated LCD display or remotely through the onboard web interface and SNMP.
Q
Is this PDU compatible with NA/JP rack standards?
A
Yes, it is designed for North American and Japanese rack configurations, ensuring proper mounting and electrical compliance.
Q
What form factor does the PDU use?
A
The unit is a 1U vertical PDU that mounts along the side of a standard 19-inch server cabinet, optimizing rack space.
Q
Can I remotely switch individual outlets?
A
Yes, the metered switched design allows secure remote on/off control of each C13 and C19 outlet via the web interface or command-line tools.
Q
Does the PDU support environmental sensors?
A
This PDU has an optional sensor port for temperature and humidity probes, enabling integrated environmental monitoring.
Q
What management protocols are supported?
A
It supports SNMP v1/v2c/v3, Telnet, SSH, HTTP/HTTPS, and Modbus TCP for seamless integration with data center management systems.
Q
What safety certifications does the HPE PDU have?
A
It is UL recognized, cULus compliant, CE marked, and meets FCC Class A requirements for safe operation in data centers.
Q
How do I install the H8B55A PDU in my rack?
A
Mount the vertical PDU using included brackets, connect the three-phase 208 V input, then plug in your devices into the C13 and C19 outlets.
Q
What is the maximum power capacity of this PDU?
A
The PDU delivers up to 14.4 kVA under full 40 A, three-phase load, supporting high-density server deployments.
Q
How does the HPE PDU improve data center uptime?
A
By offering real-time power visibility, remote outlet control, and overload protection, it minimizes downtime and speeds troubleshooting.
Q
What warranty and support options are available?
A
HPE provides a standard one-year warranty with options to extend coverage and access to global technical support for rapid issue resolution.
Q
Where can I order the H8B55A – HPE Metered Switched 3Ph 14.4 kVA PDU?
A
You can purchase SKU H8B55A through authorized HPE resellers, the HPE online store, or your preferred IT equipment distributor.
