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by Arista
Product Line: Arista Power Supplies
Product Type: PWR-745AC-R Power Supply
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Product Description

The PWR-745AC-R is a 750W AC power supply designed specifically for the Arista 7060X and 7280QR Series Switches, featuring rear-to-front airflow for optimal cooling. It operates within a 100-240VAC input voltage range, supports a 50/60Hz input frequency, and connects via an IEC 320-C13 input connector, achieving an efficiency of 93% with Platinum certification. Designed for reliability, it functions within a broad temperature range from 0˚C (32˚F) to 40˚C (104˚F), supports altitudes up to 10,000 ft (3,000m), and meets comprehensive EMC emissions and immunity standards including FCC, EN55022, and UL/CSA 60950-1.

Key Feature for the PWR-745AC-R

  • What is the power capacity of the power supply compatible with Arista 7060X and 7280QR Series Switches?
    The power capacity is 750W AC with rear-to-front airflow.
  • Can the power supply with part number 750W AC be used with any input voltage?
    Yes, it supports an input voltage range of 100-240VAC.
  • What is the typical input current for this power supply?
    The typical input current ranges from 4A to 10A.
  • Is the 750W AC power supply efficient?
    Yes, it has an efficiency rating of 93% and is Platinum certified.
  • What are the operating temperature limits for the power supply?
    The operating temperature can range from 0˚C (32˚F) to 40˚C (104˚F).
  • What type of input connector does the 750W AC power supply use?
    It uses an IEC 320-C13 input connector.
  • How does the power supply handle humidity during operation?
    It can operate within a relative humidity range of 5% to 95%.
  • What is the maximum operating altitude for the 750W AC power supply?
    The maximum operating altitude is 10,000 ft, (3,000m).
  • Does the power supply meet EMC and safety standards?
    Yes, it meets EMC emissions and immunity standards including FCC, EN55022, and EN55024, and safety standards such as UL/CSA 60950-1, EN 60950-1, and IEC 60950-1.
  • What is the storage temperature range for the 750W AC power supply?
    The storage temperature can range from -40˚C (-40˚F) to 70˚C (158˚F).

Product Review

The Arista PWR-745AC-R power supply, designed for the Arista 7060X and 7280QR Series Switches, offers a 750W AC power capacity with a high efficiency rate of 93%, ensuring minimal power waste and reduced operational costs. With its wide range of input voltage (100-240VAC) and compatibility with IEC 320-C13 connectors, it provides flexibility in deployment across various power infrastructures. However, the operating temperature range is limited to 0˚C to 40˚C, potentially restricting its use in environments with extreme temperature conditions.


The Arista PWR-745AC-R is a power supply designed to meet the needs of Arista 7060X and 7280QR Series Switches, ensuring reliable power delivery for network infrastructure. With a power capacity of 750W AC and supporting an input voltage range of 100-240VAC, this power supply is versatile for global deployment. It operates efficiently with a typical input current of 4A at 100V to 4A at 240V and an input frequency of 50/60Hz, making it suitable for a wide variety of electrical environments. One of the key features of the PWR-745AC-R is its high efficiency, rated at 93%, which qualifies it as a Platinum-level power supply. This efficiency not only contributes to lower operational costs by reducing power waste but also ensures less heat generation, contributing to the longevity of the power supply and the equipment it serves. The power supply is designed with a rear-to-front airflow, optimizing cooling in compact spaces and ensuring that it can operate effectively within a broad range of temperatures. It supports a minimum operating temperature of 0˚C (32˚F) and a maximum of 40˚C (104˚F), with storage temperatures ranging from -40˚C (-40˚F) to 70˚C (158˚F). This wide temperature range ensures reliability in various environments, from cold storage areas to hot data centers. Humidity is another factor that can affect the performance and lifespan of electronic components. The PWR-745AC-R is designed to operate within a relative humidity range of 5% to 95%, accommodating most operating environments without condensation issues. Its operational altitude range extends from 0 ft to 10,000 ft (0m to 3,000m), enabling deployment in a wide array of geographical locations without affecting performance.
  • Input Connector: IEC 320-C13, ensuring compatibility with standard AC power cords and ease of integration into existing setups.
  • EMC Compliance: Meets emissions and immunity standards including FCC, EN55022, and EN55024 among others, ensuring minimal interference with other equipment.
  • Safety Certifications: Includes UL/CSA 60950-1, EN 60950-1, and IEC 60950-1, adhering to stringent safety standards for peace of mind.
In terms of electromagnetic compatibility (EMC), the PWR-745AC-R adheres to a comprehensive set of standards, including emissions regulations such as FCC and EN55022, as well as immunity standards like EN55024. This ensures that the power supply does not interfere with the operation of other equipment and is resistant to interference from external sources. Additionally, the power supply meets several safety standards, including UL/CSA 60950-1, EN 60950-1, and IEC 60950-1, and is part of the CB Scheme with all country differences. This confirms that the device has been tested and approved for safe operation in a wide range of conditions and jurisdictions. Overall, the Arista PWR-745AC-R is a critical component for ensuring the reliable operation of Arista 7060X and 7280QR Series Switches. With its high efficiency, broad operating conditions, and compliance with safety and EMC standards, it is an excellent choice for businesses looking to maintain high-performance network operations.


Part NumberArista PWR-745AC-R
ManufacturerArista Networks
Power Output750 Watts AC
Compatible ModelsArista 7060X, 7280QR Series (airflow from rear to front)
Input Voltage Range100VAC to 240VAC
Standard Input Current4A at 100VAC to 4A at 240VAC
Frequency of Input50Hz/60Hz
Power Input ConnectorIEC 320-C13
Efficiency Rating93% Platinum Level
Minimum Operating Temperature0°C
Maximum Operating Temperature40°C
Minimum Storage Temperature-40°C
Maximum Storage Temperature70°C
Operating Humidity Range5% to 95% (non-condensing)
Minimum Elevation for Operation0 meters
Maximum Elevation for Operation3,048 meters (10,000 feet)
Electromagnetic Compatibility (EMC)FCC, EN55022, EN61000-3-2/3-3/3-11/3-12, EN55024, EN300 386
Safety StandardsUL/CSA 60950-1, EN 60950-1, IEC 60950-1, CB Scheme

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