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Hot Products

LV100-500,LV 100-500

HOT OFFER// Authorized Distributor
  • MacroQuest Part#LV100-500
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $361.02 - $494.55
    / Pieces
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    1-9 Pieces $494.55
    10-99 Pieces $409.48
    >=100 Pieces $361.02
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    Description FAQ Review
    Description

    ‌LV100-500 Closed-Loop Voltage Sensor — The Stable Choice for Industrial High-Precision Measurement

    ‌

    LV100-500 ‌Core Features‌
    Leveraging ‌closed-loop (compensated) Hall effect technology‌, it achieves zero-flux dynamic balance, eliminating zero drift and nonlinear distortion to deliver ‌high-fidelity, delay-free, repeatable‌ voltage signals even under dynamic loads and electromagnetic interference.
    ‌High-accuracy measurement‌: ±0.9% F.S. accuracy across the full temperature range, meeting the stringent demands of industrial control systems for data consistency.
    ‌Zero insertion loss design‌: No series sampling resistor required on the primary side, preventing energy loss and thermal effects to enhance overall system efficiency.
    ‌Wide operating temperature‌: Functional from ‌0°C to 70°C‌, with extended versions supporting ‌-45°C to 85°C‌, ensuring reliable performance in diverse industrial environments.
    ‌Industrial-grade insulation‌: Enclosure complies with ‌UL94-V0‌ flammability standard; primary-to-secondary isolation rated at ‌6 kV‌, guaranteeing safety and signal integrity.
    ‌Rapid response capability‌: Response time under ‌90 μs‌, precisely capturing fast voltage transients — ideal for high-frequency control applications.

     

    LV100-500 ‌Technical Specifications‌

    ‌Sensor Type‌: Closed-loop voltage sensor (Hall effect)

    ‌Rated Voltage‌: 500 V DC/AC

    ‌Measurement Range‌: ±750 V

    ‌Secondary Output Signal‌: Linear proportional current output (typical 50 mA)

    ‌Supply Voltage‌: 15 V DC bipolar (external power)

    ‌Response Time‌: ≤ 90 μs

    ‌Bandwidth‌: DC ~ 100 kHz

    ‌Accuracy Class‌: ±0.9% F.S. (over full temperature range)

    ‌Temperature Drift‌: ≤ 150 ppm/°C

    ‌Isolation Voltage‌: 6 kV DC / 1 min (primary-secondary isolation)

    ‌Operating Temperature‌: -45°C to 85°C (version-dependent)

    ‌Mounting Style‌: Panel mounting, compatible with standard industrial enclosures

    ‌Protection Rating‌: Complies with UL94-V0, suitable for high-dust, high-humidity, and high-electromagnetic-interference environments

     

    LV100-500 ‌Typical Applications‌

    Closed-loop bus voltage feedback and speed control in variable frequency drives

    DC bus voltage monitoring and battery charge/discharge control in uninterruptible power supplies (UPS)

    DC-side voltage acquisition in photovoltaic inverters and energy storage systems

    Energy recovery control in rail transit traction converters

    Voltage stability monitoring and protection in industrial welding power supplies

    Feedback loop construction in high-precision DC motor drive systems

     

    ‌Why Choose LV100-500?‌
    As a closed-loop voltage sensor engineered by LEM for ‌medium-voltage industrial systems‌, the LV100-500 sets a benchmark in ‌accuracy, stability, and reliability‌.
    Its closed-loop architecture reduces long-term drift by over ‌85%‌ compared to open-loop alternatives, dramatically lowering calibration frequency and maintenance overhead — especially critical for 24/7 industrial operations.
    The integrated primary resistor simplifies system integration, eliminating the need for external sensing components and reducing potential failure points.

     

    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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    -A:You have three ways to request a quote:
    1.Choose an item using a search box or browsing through product categories.Click on "Request Quote" button on the Product page.
    2.Click here for feedback on our web.
    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. 


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    -A:Yes, you can. you can pay on our company via Credit Card/Debit Card（Mastercard, Discover, Visa, American EXpress, Diners).

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    Review
    Ottis
    Mar 04, 2026
    reat quality and super fast shipping
    Kendrick
    Feb 25, 2026
    Everything is very professional. hope can do more in the future.
    Otto
    Nov 05, 2025
    Supplier delivers fast
    Jerry
    May 11, 2025
    Very professional and parts always come new & original.
    Ulysses
    Mar 27, 2025
    Great Company and Great People
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