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LT 505-S , LT505-S

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  • MacroQuest Part#LT 505-S
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
  • $226.60 - $274.68
    / Pieces
    |
    Pieces(Min. Order)
    1-5 Pieces $274.68
    6-11 Pieces $249.12
    >=12 Pieces $226.60
    Quantity:
    $226.60
    DC: within 2 years
    (0 In Stock)
    $226.60
    LT: 4-6 weeks
    (1050 In Stock)
    $0.00
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    Description FAQ Review
    Description

    LT505-S Closed-Loop Hall Effect Current Transducer


    LT505-S Product Overview

    The LT505-S is a high-precision closed-loop Hall effect current transducer from LEM, a world-renowned sensor manufacturer. Designed for electronic measurement applications, it accurately measures DC, AC, and pulsed currents. The transducer features galvanic isolation between the primary and secondary circuits, completely separating high-voltage and low-voltage sections to enhance system safety and reliability.

    Whether you work with AC variable frequency drives, servo motor controls, DC motor drives, or uninterruptible power supplies (UPS), the LT505-S delivers stable performance as your reliable assistant.


    Key Advantages – Why Choose LT505-S?

    Advantage

    Description

    Excellent Accuracy

    Overall accuracy of ±0.6% and linearity of ±0.1% ensure every measurement is reliable

    Ultra-Fast Response

    Response time of only 1 µs captures instantaneous current changes

    Wide Bandwidth

    Frequency response from DC to 150 kHz handles various complex current waveforms

    High Noise Immunity

    Strong resistance to external interference, stable operation even in harsh electromagnetic environments

    No Insertion Loss

    Closed-loop Hall design achieves zero insertion loss – the measurement process consumes no primary energy, ideal for energy-saving systems

    Wide Operating Temperature

    Range from -10°C to +85°C, adapting to demanding working conditions in different climates

    Current Overload Capability

    Built-in overload protection maintains system stability even beyond rated current


    LT505-S Key Technical Specifications

    Parameter

    Value

    Brand

    LEM

    Series

    LT505

    Primary nominal current (IPN)

    500 A

    Primary measuring range (IPM)

    0 ~ 1200 A

    Secondary nominal signal (ISN)

    100 mA

    Turns ratio

    1 : 5000

    Supply voltage range

    ±15V ~ ±24V (bipolar DC supply)

    Accuracy (@IPN, TA=25°C)

    ±0.6%

    Linearity

    ±0.1%

    Frequency bandwidth (-1dB)

    DC ~ 150 kHz

    Response time (@90% of IP max)

    < 1 µs

    Current consumption

    30 mA (@24V)

    Operating temperature range

    -10°C ~ +85°C

    Storage temperature range

    -25°C ~ +100°C

    Insulation test voltage

    6 kV (50 Hz, 1 minute)

    Primary aperture size

    40.5 × 40.5 mm


    LT505-S Typical Applications

    AC variable frequency drives & servo motor drives – Real-time motor current monitoring to optimize efficiency

    DC motor drive static converters – Precise current feedback for DC speed control systems

    Uninterruptible power supplies (UPS) – Ensuring power quality and reliability for critical equipment

    Switched-mode power supplies (SMPS) – Current monitoring for high-frequency power supplies

    Battery-powered equipment – Monitoring battery charge/discharge current to extend battery life

    Welding power supplies – Precise current control during welding processes

    FAQ
    Q
    What is the advantage of MacroQuest?
    A
    Our advantage is that we not only low prices, but we more suited to you.
    Our Keywords is
    New and original parts
    Fast Delivery
    Instock & available
    Short Leadtime
    30-Days returns
    ISO9001 Certification
    1 Year Warranty 

    Q: I want to work with MacroQuest because of high quality. But I found your price too high and out of line with the prevailing market level, how should I do?
    A: MacroQuest has been devoted to offer a best price to our customers,if you want to buy it at a cheapper price. Please contact us directly to see if we can negotiate  a cheaper price rate. Or, send us an email with your T/P.
    Simon Hsu
    simon@mymacroquest.com
    Alice Wang
    alice@mymacroquest.com

    Q: Can MacroQuest offer NET terms?
    A: Yes we can. Please contact with your sales manager for more information.

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    3.If you have a BOM list or want to email us directly, please contact:
    Simon Hsu
    simon@mymacroquest.com
    Alice Wang
    alice@mymacroquest.com

    Q:Are all the parts new and original?
    -A:Yes, all parts are new and original checked by our quality control department.

    Q:How long is your warranty?
    -A:We offer a 1 year warranty for form fit and function for MacroQuest stock. 


    Q:  Can I use Credit Card/Debit Card payment for my orders on your website?
    -A:Yes, you can. you can pay on our company via Credit Card/Debit Card(Mastercard, Discover, Visa, American EXpress, Diners).

    Please select the first payment method-Paypal, then you will see Credit Card/Debit Card payment button in the lower right corner.



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    Less
    Review
    Vesna
    Mar 25, 2026
    Alice, it is always a great cooperation with you. Let's keep in touch and hope to do more business with you.
    Quentin
    Feb 04, 2026
    Always answer questions, and reply quickly
    Kristina
    Jul 11, 2025
    We are doing business with them for 5 years more. Fast, Reliable supplier.
    Meghan
    May 29, 2025
    Great vendor, fast shipment excellent parts !
    Dorothea
    Aug 06, 2024
    Good and reliable, several deals over many years.
    Review

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