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    Quote

    Fast Track to a Quote

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    • LW Power Supply PS-303D
    • LW Power Supply PS-303D
    • LW Power Supply PS-303D
    • LW Power Supply PS-303D
    1/4

    • Certification | Testing
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    Brand New
    In Stock

    LW Power Supply PS-303D

    22 inquiries last 6 mos.
    US $ 160 .38 / ea
    Registered Members Enjoy Exclusive Discounts
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    Quantity
    2
    MOQ : 2

    Payment Methods

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    • 100% Original
      Genuine OEM Parts

    • Fast Delivery
      Shipped via FedEx / DHL / UPS

    • 12-Month Warranty
      Worry-Free Coverage

    • Secure Packaging
      Safe & Reliable

    • 5,000+ Global Suppliers
      Trusted by Professionals

    Professional Model-Matching System

    Send us your model numbers or nameplate details.
    We will match your request with our 5,000+ verified suppliers and issue a quotation.

    The LW Power Supply is high quality!
    Feature:
    power supply linear
    Signal channel output
    Digital meter show the voltage and current values
    Voltage/current adjust knob with rough and meticulous adjustable
    Light and compact design
    Deal for educational laboratories, safe for students to use
    Constant voltage and constant current operation (C.C and C.V. can be converted automatically)
    Low ripple and noise
    Affordable and easy to operate
    Have current limitation protection

    Specifications:
    [power supply linear]
    Model: PS-303D
    Input voltage: 220 V/110V+/-10% 50/60Hz (setting switch at the back)
    Output voltage: 0-30V (actually we will make 0-32V for you)
    Output current: 0-3A
    Operating Temperature: 0 to 40 degree celsius
    Relative humidity: <80%
    Storage Temperature:-10 to 70 degree celsius
    Relative humidity: <70%
    Constant voltage state:
    Voltage stability: <0.01%+3mV
    Load stability :< 0.01%+5mV
    Recovery time :< 100uS
    Ripple & noise : <1.0mVrms
    Temperature coefficient: < 300PPM/0C
    Constant current state:
    Current stability: < 0.2%+3mA
    Load stability :< 0.2%+3mA
    Ripple & noise :< 3mArms
    Appearance size: length 285mm* width 128mm* height 145mm (excluding protruding parts)

    Why Global Buyers Choose O&Kmarts

    O&Kmarts:
    • Access to a wide range of SKUs across multiple brands and series
    • One RFQ connects you to 5,000+ global supplier quotes
    • Better availability for urgent and hard-to-find parts
    • Faster global delivery via FedEx / DHL / UPS
    • Easier access to rare and high-value models
    • Flexible sourcing for individual parts or complete solutions
    • Lower MOQs and more adaptable buying options
    • Multi-brand procurement in one order
    • OEM replacement and alternative model solutions available
    • Fewer intermediaries, ensuring more competitive pricing

    Why Global Buyers Choose O&Kmarts

    Local Suppliers:
    • Limited to fast-moving SKUs only
    • Limited local market availability
    • Inventory frequently fails to meet urgent demand
    • Long replenishment cycles, often taking weeks
    • Rarely stock high-value compressors (e.g. Copeland YHV119)
    • Frequently require bundled purchases
    • Rigid and difficult MOQ negotiations
    • Limited brand selection
    • Minimal or no customization capability
    • Higher local distribution and markup costs

    Top Questions from OKmarts Buyers

    • Q: What secure payment methods are supported for high-value international B2B transactions?

      A: To ensure transaction security and accommodate standard corporate purchasing workflows, we support secure international Telegraphic Transfers (T/T Wire), major corporate Credit Cards, PayPal, and Letter of Credit (L/C) frameworks for large-scale procurement contracts.

    • Q: Can OKmarts issue formalized, compliant proforma invoices and commercial invoices tailored for corporate accounting?

      A: Absolutely. Our automated billing system generates itemized Proforma Invoices (PI) and Commercial Invoices containing corporate tax IDs, purchase order (PO) numbers, and explicit company details necessary to satisfy international corporate accounting and auditing standards.

    • Q: What should I do if the specific part number is obsolete or discontinued by the manufacturer?

      A: Our technical engineering team specializes in obsolescence management. If a part is lifecycle-discontinued, we utilize our cross-reference database to recommend exact drop-in replacements or functionally equivalent alternatives, ensuring minimal redesign for your machinery.

    PS-303D
    High Efficiency
    Stable Performance
    Long Service Life
    Explore More LW Power Supply

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    Q&A

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    • Q: Can I add additional items to an existing order?

      A: Unfortunately, once an order is placed, it cannot be modified to add additional items. However, you can place a new order for the additional items separately. If both orders are eligible for combined shipping, we will do our best to consolidate them and refund any excess shipping charges.

    • Q: How can I compare prices and reviews of similar products?

      A: On the product list page, you can view the prices and ratings of different items simultaneously. You can also use filters to sort products by price or rating, facilitating your comparison and selection.

    • Q: How can I view the size and specifications of a product?

      A: On the product details page, you can find detailed information about size and specifications, including size charts, specific measurements, and more, to help you select the right product.


    Customer reviews

    4.7
    Based on 7 reviews
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    • May 14, 2026

      Lee Allison Carr
      Delivered fast! Simple installation. The gasket was a bit lacking in length.
      Helpful?
      (17)
      (0)

    • Feb 25, 2026

      Mari-Isabel Almendares
      Being here for the first time is exciting and enjoyable.
      Helpful?
      (0)
      (0)
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