Skip to content


by Juniper
Product Line: Juniper Power Supply Units (PSUs)
Product Type: JPSU350ACAFO
Original price $0.00 - Original price $536.00
Original price
$0.00 - $536.00
Current price $536.00
Title: Surplus

Orders typically ship within 1-3 Business days, if you need an item to ship sooner please contact us.

Product Description

The JPSU-350-AC-AFO Juniper power supply offers 350 W AC power with front-to-back airflow, designed for efficiency and thermal management in high-demand environments. It supports autosensing 100-120 V/200-240 V AC, with dual loadsharing hot-swappable internal redundant power supplies, ensuring uninterrupted operation and system reliability. Equipped with 8 GB DRAM and capable of handling jumbo frames up to 9216 Bytes, this unit meets rigorous performance and environmental standards, including ROHS 6/6 compliance, across a broad operating temperature range from 32° F to 113° F.

Key Feature for the JPSU350ACAFO

  • What is the power capacity of the AC power supply in this device?
    The power capacity is 350 W.
  • How does airflow direction work in this system?
    The system uses front-to-back airflow.
  • Can the power supplies adapt to different voltages?
    Yes, the power supplies are autosensing, supporting 100-120 V/200-240 V AC.
  • What are the features of the internal power supplies?
    They are dual load-sharing, hot-swappable, and support redundancy.
  • What is the maximum current inrush the power supply can handle?
    The maximum current inrush is 50 amps.
  • How many power supply units (PSUs) are required for a fully loaded chassis?
    At least one PSU per switch is necessary for a fully loaded chassis.
  • What is the total system weight?
    The system weighs 2.4 lb (1.1 kg).
  • How many field-replaceable fans does the system have, and what is their airflow capacity?
    There are two field-replaceable fans, with the PSU fan providing 7.5 CFM and the system fan providing 22 CFM airflow.
  • What is the total maximum airflow throughput when equipped with two power supplies?
    The total maximum airflow throughput is 59 CFM.
  • What is the operating temperature range for this device?
    The operating temperature ranges from 32° F to 113° F.

Product Review

The Juniper JPSU-350-AC-AFO power supply, with its 350W AC and front-to-back airflow, ensures efficient energy usage and effective cooling, suitable for demanding network environments. Its support for dual load-sharing, hot-swappable internal redundant power supplies enhances system reliability and uptime, addressing the needs of critical network infrastructure. However, the maximum inrush current of 50 amps may require careful planning in power distribution within facilities to prevent circuit overload during startup.


The Juniper JPSU-350-AC-AFO is a 350 W AC power supply designed to deliver reliable power for network switches. This power supply supports autosensing and operates on both 100-120 V and 200-240 V AC, providing flexibility for various electrical environments. It is optimized for front-to-back airflow, ensuring efficient cooling and stable operation under load. This model is specifically engineered to support dual load-sharing, hot-swappable, and internal redundant power supplies, enhancing system reliability and uptime. With a maximum current inrush of 50 amps, the JPSU-350-AC-AFO is capable of handling significant power spikes, safeguarding against potential damage. It requires a minimum of one power supply unit (PSU) per switch for a fully loaded chassis, ensuring adequate power distribution across all components. Weighing in at 2.4 lb (1.1 kg), it is relatively lightweight, facilitating easy installation and maintenance. This power supply unit is equipped with two field-replaceable fans. These fans, combined with the PSU's airflow capacity of 7.5 cubic feet per minute (CFM) and an additional fan airflow of 22 CFM, result in a total maximum airflow throughput of 59 CFM with two power supplies. Such airflow capabilities contribute to maintaining optimal operating temperatures and system efficiency. Key hardware specifications include: - <>DRAM of 8 GB, offering substantial memory capacity for managing power supply operations. - <>Support for jumbo frames up to 9216 Bytes, enhancing data transmission efficiency over the network. - <>Compliance with Reduction of Hazardous Substances (ROHS) 6/6, ensuring environmental sustainability. The JPSU-350-AC-AFO operates within a temperature range of 32° F to 113° F and can be stored from -40° F up to 158° F, accommodating a wide range of environmental conditions. It is designed to function optimally at altitudes up to 10,000 ft (3,049 m) when operating and up to 16,000 ft (4,877 m) when not in operation. The operating relative humidity range is from 10% to 85% (non-condensing), and for non-operating conditions, it can withstand 0% to 95% (non-condensing), ensuring durability across various climates. Acoustic noise is rated at 38.5 dBA, indicating a relatively quiet operation, which is beneficial in environments where noise levels are a concern. In summary, the Juniper JPSU-350-AC-AFO is a versatile and efficient power supply unit designed for network switches. Its dual hot-swappable, load-sharing capability, combined with a solid environmental and electrical operating range, makes it a reliable choice for ensuring uninterrupted power delivery to critical network infrastructure.


Part NumberJuniper JPSU-350-AC-AFO
ManufacturerJuniper Networks
Power Supply Capacity350 Watts, Alternating Current
Airflow DirectionFront to Back
Power Supply FeaturesAutomatic Voltage Sensing; Ranges from 100-120V/200-240V AC, 350W AFO
Power Supply RedundancySupports Dual, Hot-Swappable, Load-Sharing for Internal Redundancy
Inrush Current Maximum50 Amps
Minimum Power Supplies for Full Load1 per Switch
Unit Weight2.4 pounds (1.1 kilograms)
Replaceable Fan Units2
Individual AirflowPower Supply Unit: 7.5 CFM; Fan: 22 CFM
Total Airflow with Dual Supplies59 CFM
Memory8 Gigabytes DRAM
Support for Large FramesUp to 9216 Bytes
Environmental ComplianceROHS 6/6 Certified
Sound Emission38.5 dB
Minimum Operating Temperature32°F
Maximum Operating Temperature113°F
Minimum Storage Temperature-40°F
Maximum Storage Temperature158°F
Max Operating AltitudeUp to 10,000 feet (3,049 meters)
Max Non-operating AltitudeUp to 16,000 feet (4,877 meters)
Operating Humidity Min10% (Non-condensing)
Operating Humidity Max85% (Non-condensing)
Non-operating Humidity0% to 95% (Non-condensing)

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare