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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
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Product Description

The PWR-3K-AC-F is a 3kW Titanium AC Power Supply designed for the Arista 7300 series, including the DCS-7304, DCS-7308, and DCS-7316 chassis, featuring a front-to-rear air flow direction for efficient cooling. It operates with an input power range of 200 - 240 VAC at 16 A (20 A US), supporting a frequency of 50 or 60 Hz, and requires 14 AWG C19-C20 power cables for connection. Designed to meet various environmental and safety standards, it operates within a temperature range of 0°C (32°F) to 40°C (104°F), supports a humidity range of 5% to 95%, and complies with EMC and safety standards including FCC, UL/CSA 60950-1, and IEC 60950-1.

FAQs for the PWR-3K-AC-F

  • What is the input power requirement for the Spare 3kW AC Power Supply?
    The input power requirement is 200 - 240 VAC, 16 A (20 A US), 50 or 60 Hz.
  • Which chassis are supported by the Spare 3kW Titanium AC Power Supply for 7300 series?
    Supported chassis include DCS-7304, DCS-7308, and DCS-7316.
  • What type of power cables are required for this power supply?
    Power cables required are 14 AWG, C19-C20.
  • How does the air flow direction of the PSU affect its installation?
    The PSU air flow direction can be reverse (Red) or forward (Blue), determining its compatibility with the air flow design of the chassis for optimal cooling.
  • What are the operating temperature limits for this power supply?
    The operating temperature ranges from 0°C (32°F) to 40°C (104°F).
  • Can the power supply operate at high altitudes?
    Yes, it can operate at altitudes up to 10,000 ft (3,000m).
  • What are the EMC emissions standards the power supply complies with?
    It complies with FCC, EN55022, EN61000-3-2, EN61000-3-3 or EN61000-3-11, and EN61000-3-12 standards.
  • What safety certifications does the power supply hold?
    It is certified under UL/CSA 60950-1, EN 60950-1, IEC 60950-1, and the CB Scheme with all country differences.
  • What is the maximum relative humidity the power supply can withstand during operation?
    It can withstand up to 95% relative humidity.
  • Is branch circuit protection required for this power supply?
    Yes, branch circuit protection of 20A is required.

Product Review

The ARISTA PWR-3K-AC-F power supply offers a high-capacity 3kW Titanium AC power solution for the 7300 series, ensuring reliable operation across a range of supported chassis (DCS-7304, DCS-7308, DCS-7316). However, its operation is limited to a specific voltage range (200 - 240 VAC) and requires branch circuit protection of 20A, which may restrict its use in regions with lower standard voltage supplies or infrastructure. Furthermore, it adheres to rigorous safety and EMC emissions standards, but its operational temperature range is confined to 0°C to 40°C, potentially limiting its deployment in environments with extreme temperatures.


The ARISTA PWR-3K-AC-F is a 3kW Titanium AC Power Supply designed specifically for use with Arista's 7300 series network switches. This includes compatibility with the DCS-7304, DCS-7308, and DCS-7316 chassis. It features a distinctive blue handle indicating its support for front-to-rear air flow direction, optimizing cooling efficiency in data center environments. This power supply operates on an input power per circuit of 200 - 240 VAC with a current of 16 A, or 20 A for US configurations, and supports a frequency range of 50 or 60 Hz. It is designed to meet branch circuit protection requirements of 20A. To ensure reliable connectivity, the required cabling and interconnects are specified as power cables of 14 AWG with C19-C20 connectors. The ARISTA PWR-3K-AC-F is engineered to function within a broad range of environmental conditions. It operates effectively at temperatures ranging from 0°C (32°F) to 40°C (104°F) and can be stored in temperatures ranging from -25°C (-13°F) to 70°C (158°F). The device's performance is consistent across a wide range of humidity levels, from a minimum of 5% to a maximum of 95% relative humidity. It is also designed to operate at altitudes from sea level up to 10,000 feet (3,000m), ensuring versatility across various installation environments. EMC emissions compliance is achieved with standards such as FCC, EN55022, EN61000-3-2, EN61000-3-3 or EN61000-3-11, and EN61000-3-12, ensuring that the power supply does not interfere with other equipment. Safety is a key focus, with certifications from UL/CSA 60950-1, EN 60950-1, IEC 60950-1, and the CB Scheme with all country differences, guaranteeing a high standard of safety for use in different regions.
  • Air Flow Direction: Supports front-to-rear with a blue handle for easy identification.
  • Input Power Specifications: Designed for 200 - 240 VAC, 16 A (20 A US), 50 or 60 Hz, with branch circuit protection of 20A.
  • Environmental Tolerance: Operates within 0°C to 40°C and withstands storage temperatures from -25°C to 70°C.
The ARISTA PWR-3K-AC-F power supply is not only built to support the demanding power requirements of Arista's 7300 series switches but also designed with operational efficiency and safety in mind. Its broad compatibility with power standards, coupled with a design focused on durability and reliability, makes it a critical component for maintaining the uptime and performance of network infrastructures.


Model Number ARISTA PWR-3K-AC-F
Manufacturer Arista
Description 3kW AC Titanium Power Module with Blue Handle for 7300 Series
Compatible Models DCS-7304, DCS-7308, DCS-7316
Input Voltage 200 - 240 VAC, 16 A (20 A for US), 50/60 Hz
Circuit Breaker Requirements 20A
Connectivity Requirements 14 AWG Power Cords, C19 to C20 Connectors
Cooling Airflow Direction From Front to Rear
Cooling Configuration Red for Reverse, Blue for Forward Airflow
Operating Temperature Range 0°C to 40°C (32°F to 104°F)
Storage Temperature Range -25°C to 70°C (-13°F to 158°F)
Operating Humidity Range 5% to 95% non-condensing
Operational Altitude Range Up to 10,000 ft (0 to 3,000m)
Electromagnetic Compatibility Standards FCC, EN55022, EN61000-3-2/3-3/3-11/3-12
Safety Certifications UL/CSA 60950-1, EN 60950-1, IEC 60950-1, CB Scheme

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