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Name:
QFX3100-PWRAC-560A
- Description:
- 560W Power Supply A for QFX3100 (spare)
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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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QFX3100-PWRAC-560A Overview
QFX3100-PWRAC-560A is a high-performance 550W modular power supply designed in an ATX form factor, earning a Gold 80 PLUS certification. It supports a wide input voltage range of 100–240V with Active PFC and delivers reliable performance thanks to its robust build quality, efficient power conversion, and comprehensive overcurrent (OCP), overvoltage (OVP), short-circuit (SCP), and over-temperature (OTP) protections.
QFX3100-PWRAC-560A features a 120mm fan with a fluid dynamic bearing and zero RPM mode for quiet operation, making it ideal for gaming, workstation, and enterprise server applications. It comes equipped with an ATX 24-pin connector, one EPS (CPU) 4+4 pin connector, two PCIe (6+2) connectors, eight SATA power connectors, and four Molex connectors, all with sleeved cables to ensure a clean build and dependable performance.
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QFX3100-PWRAC-560A Specifications
| Product Type | Power Supply |
| Wattage | 550W |
| Use Case | Gaming / Workstation / Enterprise Server |
| 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 | 120mm |
| Fan Bearing Type | Fluid Dynamic |
| Zero RPM Mode | Yes |
| Efficiency Rating | 90% |
| Protections | OCP / OVP / SCP / OTP |
| ATX 24-Pin Connectors | 1 |
| EPS (CPU) 4+4 Pin | 1 |
| PCIe (6+2) Connectors | 2 |
| SATA Power Connectors | 8 |
| 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 | QFX3100-PWRAC-560A |
| Height | 5 inches |
| Width | 6 inches |
| Depth | 11 inches |
| Weight | 8 lbs |
QFX3100-PWRAC-560A Use Case
Hot-Swappable Power Redundancy for 24/7 Data Center Uptime
In large-scale data centers, IT teams install the QFX3100-PWRAC-560A-560W Power Supply A as a hot-swappable spare on QFX3100 switches to achieve N+1 power redundancy. This configuration ensures uninterrupted 560W power delivery during maintenance or unexpected failures, delivering 99.999% network uptime and eliminating service disruptions.
Rapid Power Failover in High-Density Campus Networks
In high-density campus deployments—supporting digital classrooms, VoIP, and video conferencing—network architects provision the QFX3100-PWRAC-560A-560W Power Supply A as a standby unit on QFX3100 switches. Upon primary supply failure, automatic failover occurs in under 30 seconds, maintaining full PoE capacity and safeguarding critical applications without manual intervention.
Plug-and-Play Power Backup for Distributed Branch Offices
For geographically dispersed branch locations with limited on-site staff, operations teams stage the QFX3100-PWRAC-560A-560W Power Supply A as a pre-configured spare. In the event of a power module fault, local technicians perform a tool-free swap, reducing MTTR by up to 80% and sustaining consistent network performance and business continuity.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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|---|---|---|---|---|---|
| 80 PLUS Certification | Gold | None | Gold | Gold | 80 PLUS |
| ATX 24-Pin Connectors | 1 | N/A | 1 | 1 | 1 |
| Cable Type | Sleeved | Flat | Sleeved | Sleeved | Flat |
| Certifications | 80 PLUS / CE / FCC / UL / RoHS | N/A | 80 PLUS / CE / FCC / RoHS | 80 PLUS / CE / FCC / UL / RoHS | 80 PLUS |
| Depth | 11 inches | N/A | 6.3 inches | 3.4 inches | 5.9 inches |
| Efficiency Rating | 90% | N/A | 92% | 92% | 85% |
| EPS (CPU) 4+4 Pin | 1 | N/A | 1 | 1 | 1 |
| Fan Bearing Type | Fluid Dynamic | N/A | Fluid Dynamic | Fluid Dynamic | Sleeve |
| Fan Size | 120mm | N/A | 120mm | 120mm | 80mm |
| Floppy Connector | No | No | No | No | No |
| Form Factor | ATX | N/A | ATX | ATX | ATX |
| Height | 5 inches | N/A | 5.5 inches | 5.9 inches | 4.5 inches |
| Hot-Swap Capable | No | N/A | No | No | No |
| Input Voltage | 100–240V | N/A | 100–240V | 100–240V | 100–240V |
| Modularity | Modular | Non-Modular | Non-Modular | Modular | Non-Modular |
| Molex Connectors | 4 | N/A | 4 | 2 | 2 |
| MTBF (Mean Time Between Failures) | 150,000 hours | N/A | 150,000 hours | 150,000 hours | 100,000 hours |
| Operating Temperature | 50°C | N/A | 50°C | 50°C | 40°C |
| PCIe (6+2) Connectors | 2 | N/A | 2 | 2 | N/A |
| PFC (Power Factor Correction) | Active PFC | N/A | Active PFC | Active PFC | Active PFC |
| Product Name | QFX3100-PWRAC-560A | QFX-QSFP-DAC-3M | JPSU-850W-AC-AFO | JPSU-850W-DC-AFI | JPSU-150-AC-AFO |
| Product Type | Power Supply | N/A | Power Supply | Power Supply | Power Supply |
| Protections | OCP / OVP / SCP / OTP | N/A | OCP / OVP / SCP / OTP | OCP, OVP, UVP, SCP, OTP | OCP / OVP / SCP |
| Rail Configuration | Single Rail | N/A | Single Rail | Single Rail | Single Rail |
| Remote Monitoring | No | N/A | No | No | No |
| RGB Lighting | No | No | No | No | No |
| SATA Power Connectors | 8 | N/A | 6 | 6 | 2 |
| Use Case | Gaming / Workstation / Enterprise Server | Data Center | Gaming / Workstation / Enterprise Server | Enterprise Server / Workstation / Gaming | General Use |
| Wattage | 550W | N/A | 850W | 850W | 150W |
| Weight | 8 lbs | N/A | 12 lbs | 7.5 lbs | 3.2 lbs |
| Width | 6 inches | N/A | 5.9 inches | 5.5 inches | 6.3 inches |
| Zero RPM Mode | Yes | No | Yes | No | Yes |
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Questions & Answers
Q
What is the QFX3100-PWRAC-560A 560W Power Supply A?
A
The QFX3100-PWRAC-560A is a 560-watt AC power supply module designed as a direct spare for Juniper QFX3100 switches.
Q
Is the QFX3100-PWRAC-560A compatible with all QFX3100 switch models?
A
Yes, the QFX3100-PWRAC-560A is fully compatible with all Juniper QFX3100 chassis that require Power Supply A, including QFX3100-24T and QFX3100-48S variants.
Q
What are the power output and efficiency ratings of the QFX3100-PWRAC-560A?
A
The unit delivers 560 W of output power and operates at up to 90% efficiency, meeting 80 PLUS Platinum standards for energy savings.
Q
How do I install the QFX3100-PWRAC-560A spare power supply?
A
Slide the QFX3100-PWRAC-560A into an empty PSU bay until the latch clicks, connect the AC power cord, and verify the LED status turns green.
Q
Does the QFX3100-PWRAC-560A support hot-swapping?
A
Yes, the QFX3100-PWRAC-560A supports hot-swappable replacement to maintain uninterrupted switch operation.
Q
What warranty covers the QFX3100-PWRAC-560A?
A
Juniper provides a standard one-year limited warranty on the QFX3100-PWRAC-560A, with optional support contract extensions available.
Q
Where can I purchase the QFX3100-PWRAC-560A spare power supply?
A
You can buy the QFX3100-PWRAC-560A from authorized Juniper distributors or Juniper’s official online store using SKU QFX3100-PWRAC-560A.
Q
What are the physical dimensions and weight of the QFX3100-PWRAC-560A?
A
The power supply measures 43.3 × 30 × 4.4 cm (W × D × H) and weighs approximately 2.1 kg (4.63 lbs).
Q
What AC input voltage range does the QFX3100-PWRAC-560A support?
A
It supports a 100–240 V AC input at 50/60 Hz with automatic switching for global deployment.
Q
What is the part number cross-reference for the QFX3100-PWRAC-560A?
A
The official Juniper part number is QFX3100-PWRAC-560A, also referenced as PWR-AC-560A in the QFX3100 product documentation.
Q
Is professional installation required for the QFX3100-PWRAC-560A?
A
Professional installation is recommended for safety and compliance, but you can install the module yourself by following Juniper’s installation guide.
Q
Can the QFX3100-PWRAC-560A be used in a standard 1U rackmount environment?
A
Yes, the QFX3100-PWRAC-560A is designed for Juniper QFX3100 switches, which are 1U rackmount devices.
Q
How do I troubleshoot common installation issues with the QFX3100-PWRAC-560A?
A
Ensure the PSU is fully seated, verify the AC cord is connected, check for green status LEDs, and consult Juniper Tech Support if errors persist.
Q
What safety and compliance certifications does the QFX3100-PWRAC-560A hold?
A
The power supply is UL, CE, FCC and RoHS compliant and meets IEC 60950-1 safety standards.
Q
How long does shipping take for the QFX3100-PWRAC-560A?
A
Standard shipping is 3–5 business days from our US and EMEA warehouses, with expedited options available at checkout.
Q
What is the return policy for the QFX3100-PWRAC-560A?
A
We offer a 30-day return policy for unused units in original packaging; a restocking fee may apply based on vendor terms.
Q
Can the QFX3100-PWRAC-560A operate in high-temperature environments?
A
Yes, it is rated for 0 °C to 40 °C operating temperature with adequate chassis airflow and up to 70 °C for storage.
