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by Arista
Product Line: Arista Series
Product Type: Power Supply
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Original price $0.00 - Original price $0.00
Original price
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Current price $0.00
Title: Surplus

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Product Description

The PWR-460AC-R is a spare 460 Watt AC power supply designed specifically for Arista 7124SX, 7050, and 7048-A switches, featuring an input voltage range of 100-240AC, 50/60Hz and supporting an air flow direction from rear-to-front. It operates efficiently within a temperature range of 0°C (32°F) to 40°C (104°F) and at altitudes up to 10,000 ft (3,000m), ensuring reliability under various environmental conditions. Compliant with EMC emissions and immunity standards including FCC, EN55022, EN61000-3-2/3/3-11/3-12, EN55024, and EN300 386, this power supply maintains performance integrity in diverse regulatory environments.

FAQs for the PWR-460AC-R

  • What is the power capacity of the spare power supply designed for Arista switches?
    The power capacity is 460 Watt.
  • Which Arista switches is the 460 Watt AC power supply compatible with?
    It is designed for Arista 7124SX, 7050, and 7048-A switches.
  • What is the input voltage range for the power supply?
    The input voltage range is 100-240AC, 50/60Hz.
  • How does air flow through the power supply unit?
    Air flows from the rear to the front.
  • What are the operating temperature limits for the power supply?
    The minimum operating temperature is 0°C (32°F) and the maximum is 40°C (104°F).
  • Can the power supply be used at high altitudes?
    Yes, it can operate at altitudes up to 10,000 ft (3,000m).
  • What are the storage temperature limits for the power supply?
    The minimum storage temperature is -40°C and the maximum is 70°C.
  • What is the relative humidity range for the power supply's operation?
    The relative humidity range for operation is 5 to 95%.
  • Which EMC emissions standards does the power supply comply with?
    It complies with FCC, EN55022, EN61000-3-2, EN61000-3-3 or EN61000-3-11, and EN61000-3-12 emissions standards.
  • What immunity standards are met by the power supply?
    It meets EN55024 immunity standards and Emissions and Immunity standards EN300 386.

Product Review

The ARISTA PWR-460AC-R power supply offers a solid power capacity of 460 Watts, compatible with Arista 7124SX, 7050, and 7048-A switches, ensuring reliable performance across a range of devices. It operates efficiently within a broad input voltage range (100-240AC) and supports a wide operating temperature spectrum from 0°C to 40°C, accommodating various environmental conditions. However, its rear-to-front air flow direction mandates careful consideration of cooling and rack placement strategies to optimize air circulation and prevent overheating in dense installations.


The ARISTA PWR-460AC-R is a spare power supply unit designed to ensure uninterrupted performance and reliability for networking hardware. With a power capacity of 460 Watts, it is engineered to support critical networking operations. This model is compatible with Arista 7124SX, 7050, and 7048-A switches, making it a versatile choice for various networking environments. This power supply operates efficiently within a wide input voltage range of 100-240AC at 50/60Hz, accommodating varying power sources and ensuring stable operation across different regions. The unit is designed with a rear-to-front air flow direction, promoting optimal cooling and performance longevity even under continuous operation. Key hardware specifications include: - Air Flow Direction: Ensures efficient cooling by directing air from the rear to the front. - Power Capacity: Delivers up to 460 Watts, suitable for supporting the power needs of compatible Arista switches. - Input Voltage Range: Operates on 100-240AC, 50/60Hz, accommodating global electrical standards. Operating conditions are an essential aspect of this power supply's specifications. It is built to function within a broad temperature range, from 0°C (32°F) to 40°C (104°F) for operating temperature, and from -40°C to 70°C for storage temperature. This ensures reliability in various environmental conditions. The unit can operate at altitudes up to 10,000 feet (3,000m), offering flexibility for installation in different geographic locations. Humidity tolerance ranges from 5 to 95%, allowing it to perform in a wide array of climatic conditions without condensation. The ARISTA PWR-460AC-R adheres to strict EMC emissions and immunity standards, including FCC, EN55022, EN61000-3-2, EN61000-3-3 or EN61000-3-11, EN61000-3-12 for emissions, and EN55024 for immunity. It also meets the requirements of EN300 386 for both emissions and immunity. These certifications ensure that the power supply not only operates within safe electromagnetic conditions but also does not interfere with the operation of other equipment. In summary, the ARISTA PWR-460AC-R is a dedicated power supply unit crafted to deliver reliable and efficient power to Arista's specific range of switches. Its design and engineering encompass a broad input voltage range, efficient cooling, and operation within a wide range of environmental conditions. Compliance with numerous EMC standards further underscores its suitability for deployment in diverse networking environments, ensuring both safety and performance integrity.


Part Number and Manufacturer ARISTA PWR-460AC-R
Power Supply Capacity 460 Watts AC Spare
Cooling Airflow Direction From Rear to Front
Power Output 460 Watts
Input Power Range 100-240V AC, 50/60Hz
Compatibility Compatible with Arista 7124SX, 7050, and 7048-A Models
Operating Temperature Range 0°C to 40°C (32°F to 104°F)
Storage Temperature Range -40°C to 70°C
Humidity Tolerance 5% to 95% Relative Humidity
Operational Altitude Range 0 to 10,000 feet (0 to 3,000 meters)
EMC Emissions Standards FCC, EN55022, EN61000-3-2, EN61000-3-3, EN61000-3-11, EN61000-3-12
EMC Immunity Standard EN55024
Compliance for Emissions and Immunity EN300 386

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