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Hot Products

LF 2005-S/SP1 , LF2005-S/SP1

HOT OFFER// Authorized Distributor
  • MacroQuest Part#LF 2005-S/SP1
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $422.47 - $609.62
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    10-49 Pieces $504.77
    50-99 Pieces $459.66
    100-499 Pieces $445.02
    >=500 Pieces $422.47
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    Description FAQ Review
    Description

    LF2005-S/SP1 Closed-Loop Hall Effect Current Sensor

     

    LF2005-S/SP1 Master High Current with Precision – Safeguarding Industrial Power

    In high-power applications such as motor drives, power supplies, renewable energy systems, and welding equipment, achieving high-accuracy, high-reliability current measurement remains a core challenge for engineers.

    The LF2005-S/SP1 closed-loop Hall effect current sensor, from LEM (Switzerland) – a world leader in electrical measurement – is designed specifically for high-precision current detection in high-power scenarios. Equipped with excellent performance and extreme reliability, it equips your power system with "eagle-eyed" accuracy.

    Rated at 2000 A, measuring up to 3500 A – whether DC, AC, or complex pulsed currents, the LF2005-S/SP1 captures them precisely, meeting your need for dynamic monitoring of large-scale currents.

     

    Key Advantages – Why Choose the LF2005-S/SP1?

    I. ±0.3% Ultra-High Accuracy – Know Every Milliampere with Confidence

    The LF2005-S/SP1 uses advanced closed-loop Hall effect technology, achieving ±0.3% accuracy at +25°C, with typical linearity error below 0.1%. This means – no matter how severely the system load fluctuates – it delivers true, reliable current data, providing a solid foundation for your control decisions.

    II. <1μs Ultra-Fast Response – Capture Transient Current Changes

    The 90% step response time is less than 1 microsecond, with a frequency bandwidth covering DC to 100 kHz, enabling accurate tracking of current changes with di/dt > 50 A/μs. For high-dynamic scenarios such as inrush currents during welding equipment startup or high-frequency switching currents in inverters, the LF2005-S/SP1 handles them effortlessly, missing no transient waveform.

    III. -40°C to +85°C Wide Operating Temperature – Unfazed by Harsh Environments

    The LF2005-S/SP1 operates stably from -40°C to +85°C. Low thermal drift ensures that measurement accuracy does not drift with environmental changes. Whether in the severe cold of northern winters or the high heat of long-running equipment, it remains consistently reliable.

    IV. 6 kV High Electrical Isolation – Safety Always Online

    Excellent electrical isolation between primary and secondary circuits, with an AC withstand voltage rating of 6 kV (50 Hz, 1 min). The housing uses UL 94-V0 flame-retardant insulating material. In high-voltage, high-current industrial sites, safety is the top priority – the LF2005-S/SP1 builds a solid "safety wall" for you.

    V. Compact Modular Design – Flexible and Easy Installation

    The sensor features a compact panel-mount package with a primary conductor opening of 60.5×20.5 mm (or 27 mm diameter). It supports multiple panel mounting options, allowing flexible layout according to your equipment space.

     

    LF2005-S/SP1 Applications – Wide Compatibility, Full Coverage

    With its outstanding adaptability, the LF2005-S/SP1 serves a broad range of industrial and energy sectors:

    Application Area

    Typical Use Cases

    Motor Drives

    AC variable speed drives, servo motor drives, DC motor drives – real-time monitoring of large currents to ensure stable operation

    Railway Traction

    Designed for modular current measurement in traction converters; control and protection for main traction and auxiliary inverters

    Renewable Energy

    Current monitoring in photovoltaic inverters and wind power systems – helping green energy operate efficiently

    Power Supplies

    Charge/discharge current detection in uninterruptible power supplies (UPS) and switch-mode power supplies (SMPS)

    Welding Equipment

    High-current detection dedicated to welding power sources – meeting demanding high-dynamic response requirements

    Battery-Powered Systems

    Current monitoring and protection for large energy storage battery banks and battery-powered equipment

     

    LF2005-S/SP1 Technical Specifications at a Glance

    Parameter

    Value

    Brand

    LEM (Switzerland)

    Rated current (RMS)

    2000 A

    Measuring range

    0 ~ 3500 A (with ±24 V supply)

    Secondary output signal

    Instantaneous 400 mA current

    Turns ratio

    1:5000

    Supply voltage

    ±15 V to ±24 V DC (bipolar)

    Accuracy (@ +25°C)

    ±0.3%

    Linearity error

    < 0.1%

    Response time (90% step)

    < 1 μs

    Frequency bandwidth (-1 dB)

    DC ~ 100 kHz

    Operating temperature range

    -40°C ~ +85°C

    Storage temperature range

    -50°C ~ +90°C

    Dielectric withstand voltage

    6 kV (50 Hz, 1 min)

    Weight

    Approx. 1.5 kg

    Housing material

    UL 94-V0 flame-retardant insulating plastic

    Mounting type

    Panel mount, 4 x Ø6.5 mm mounting holes

     

    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
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    30-Days returns
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    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

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    A: Yes we can. Please contact with your sales manager for more information.

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    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?
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