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    Huawei ETP4890-B3A1 Power Converter

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    ETP4890-B3A1 Hardware Description
    Introduction
    Huawei ETP4890-B3A1 power converter with 3xR4830G/R4830N 1xSMU01C.


    3U height
     
    Voltage range of 85 V AC to 300 V AC
     
    Output: -48V, 90A Max
     
    Maximum output power: 4815W
     
    Supports electronic labels
     
    Display in English and Chinese and user operations on the Liquid crystal display (LCD)
     
    Rectifiers and the SMU are hot-swappable
     
    Apply for Huawei OLT, Huawei OSN, Huawei Router, and Huawei Switch.
     
    ETP4890-B3A1 has three rectifier slots, that can support R4830G1 and R4830N2, three rectifiers are configured by default. It is an embedded telecom power system that supplies power to -48 V DC communications equipment with a maximum current of 90 A.
    ETP4890-B3A1 Datasheet
    Technical Specifications
    Category Item Specification
    AC input Input system 220 V AC single-phase
    Input frequency Frequency range: 45-66 Hz; nominal frequency: 50 Hz or 60 Hz
    Power factor (PF) ≥ 0.99 (rated input, with loads)
    DC output Output voltage range -42 V DC to -58 V DC
    Default output voltage -53.5 V DC
    Max. output power 4815 W
    Regulated voltage precision ≤ ±1% (The output voltage is within 53.5 V DC±0.1 V DC, with 50% load percentage.)
    Peak-to-peak noise voltage ≤ 200 mV (under rated input voltage and load power)
    Noise weighting ≤ 2 mV (300 Hz to 3400 Hz, input voltage ≤ 264 V AC)
    Unbalance of load sharing ≤ ±5% (with 50% to 100% loads)
    Structure Dimensions (H x W x D) 130.5 mm x 442 mm x 255 mm
    Weight ≤ 13 kg (including rectifiers)
    Protection level IP20
    Installation mode Equipped with mounting ears to adapt to 19-inch cabinets
    Cable routing AC input cables are routed in from the upper left side, and DC output cables are routed out from the lower right side
    Maintenance mode Maintained from the front
    Heat dissipation mode Nature heat dissipation
    Configurations
    Subrack 3 U power system
    SMU One SMU01C
    Rectifier A maximum of three R4830G1s, or R4830N2s
    Surge protective device (SPD) AC SPD: Nominal discharge current: 20 kA, maximum discharge current: 40 kA (8/20 µs)
    DC SPD: Differential mode: 10 kA; common mode: 20 kA (8/20 µs)

    Return and Exchange Policy

    Thank you for choosing Huatelecom! We value your trust and strive to provide high-quality products and exceptional service. Below is our comprehensive return and exchange policy to ensure your rights are protected.

    1. Return Policy

    • Eligibility for Returns (Quality Issues Only):
      If the product has quality defects that affect its normal usage, you are eligible to apply for a return within 7 calendar days of receiving the product. The following conditions must be met:

      1. The product must be unused, with all original packaging, accessories, and manuals intact.
      2. A valid proof of purchase (order number, invoice, etc.) must be provided.
      3. Clear evidence of the defect, such as photos or videos, must be submitted for verification.

    • Shipping Costs for Returns:
      If the return is due to quality issues, Huatelecom will cover the international shipping costs for returning the product.

    • Refund Processing:
      Once the returned product is received and inspected, the refund will be processed within 7 business days. The refund will be issued through the original payment method, and processing times may vary depending on your payment provider.

    2. Exchange Policy

    • Eligibility for Exchanges (Quality Issues Only):
      You may request an exchange if the product develops a quality issue within 15 calendar days of receipt. The conditions for eligibility are:

      1. The product must be returned with all original packaging, accessories, and manuals.
      2. Proof of purchase and evidence of the defect must be provided.

    • Shipping Costs for Exchanges:
      Huatelecom will bear the international shipping costs for the exchange.

    • Exchange Process:
      Upon receiving the defective product, we will inspect it and send a replacement product within 7 business days.

    3. Warranty Service

    • Coverage During the Warranty Period:
      For products within the warranty period, if quality issues arise, we will provide a replacement free of charge with your next order. No additional shipping costs will be incurred for the replacement.

    • Out-of-Warranty Repairs:
      For products outside the warranty period, repairs can be arranged. However, customers will need to cover theround-trip international shipping costs for sending the product to us and receiving it back after repair.

    4. Damages or Loss During Shipping

    • For Customers Who Purchased Shipping Insurance:
      If the product is damaged or lost during shipping, the insurance company will compensate for the loss. Customers must:

      1. Submit a compensation claim within 15 calendar days of the order being shipped.
      2. Provide required documentation, such as photos of the damaged packaging, damaged product, or proof of non-delivery.
      3. Huatelecom will assist in the claim process to ensure timely resolution.

    • For Customers Without Shipping Insurance:
      If you choose not to purchase shipping insurance, Huatelecom will not be liable for any damages or losses incurred during transit.

    5. Application Process for Returns, Exchanges, or Claims

    1. For further assistance, please reach out to us:

      • Email: sales@huatelecom.com
      • Phone: +852 44652638
      • Business Hours: Monday to Friday, 9:00 AM - 6:00 PM (GMT+8)
        Provide your order number, issue description, and supporting evidence (photos, videos, etc.).

    2. Request Review:
      Our team will review your application within 1-3 business days and notify you of the outcome.

    3. Return or Exchange Process:

      • If approved, you will receive instructions on how to return the product or proceed with the exchange.
      • For insurance claims, we will assist in coordinating with the insurance company.

    4. Refund or Replacement:
      Once the product is received and inspected, we will process your refund, exchange, or warranty claim promptly.

    6. Important Notes

    • Timeframes:

      • Returns must be initiated within 7 days of receipt.
      • Exchanges must be requested within 15 days of receipt.
      • Warranty replacements depend on the warranty terms for the specific product.

    • Condition of Returned Products:
      Products must be returned in their original condition with all accessories and packaging intact. Damaged, altered, or incomplete items may not qualify for returns or exchanges.

    • Shipping Insurance:
      We highly recommend purchasing shipping insurance to protect against potential damages or losses during transit.

    • Non-Eligible Returns/Exchanges:

      • Products with intentional damage or misuse.
      • Issues reported beyond the specified timeframes.
      • Non-Huatelecom products or items purchased from unauthorized channels.

    At Huatelecom, your satisfaction is our top priority. Thank you for trusting us with your business!