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Hot Products

LT4000-S/SP35;LT 4000-S/SP35

HOT OFFER// Authorized Distributor
  • MacroQuest Part#LT4000-S/SP35
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $1793.52 - $2456.87
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    10-99 Pieces $2034.29
    >=100 Pieces $1793.52
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    Description FAQ Review
    Description

    LEM LT 4000-S/SP35 Closed-Loop Hall Effect Current Transducer

     

    LEM LT 4000-S/SP35 Product Overview

    The LT 4000-S/SP35 is a closed-loop Hall effect current transducer from LEM's LT4000 series, designed for electronic measurement of DC, AC, and pulsed currents with galvanic isolation between the primary and secondary circuits .

    This model is rated for 4000A nominal current with a measuring range of ±6000A (1.5× overload capability), outputting an 800mA instantaneous current signal with a conversion ratio of 1:5000 . It features a 102mm aperture for the primary conductor crossing, a ±24V bipolar supply, and accuracy of 0.5% . The SP35 suffix indicates a specific configuration version for traction applications.

     

    LEM LT 4000-S/SP35 Key Technical Specifications

    Parameter

    Specification

    Model

    LT 4000-S/SP35

    Series

    LT4000

    Rated Current (I_PN)

    4000 A RMS

    Measuring Range (I_P)

    ±6000 A

    Output Signal (I_SN)

    800 mA instantaneous current

    Conversion Ratio (K_N)

    1:5000

    Measurement Technology

    Closed-loop Hall Effect

    Accuracy (X_G)

    ±0.5 %

    Linearity (ε_L)

    ±0.1 %

    Frequency Bandwidth

    DC ~ 100 kHz

    Response Time (t_r)

    1 µs

    Supply Voltage (V_C)

    ±24V DC (±5%)

    Supply Current (Max)

    41 mA 

    Aperture Diameter

    102 mm

    Polarization

    Bidirectional

    Mounting Type

    Panel Mount / Chassis Mount

    Package / Case

    Module, Single Pass Through

    Operating Temperature

    -40°C ~ +70°C 

    Certification Standards

    EN 50178 

    Application Domain

    Traction 

    Part Status

    Active 

     

    LEM LT 4000-S/SP35 Core Advantages

    Closed-Loop Hall Technology, 0.5% Accuracy: Utilizes closed-loop Hall effect technology with active compensation — accuracy 0.5%, linearity ±0.1% 

    ±6000A Ultra-Wide Range: Rated 4000A with ±6000A measuring range — 1.5× overload capability handles transient surges

    102mm Ultra-Large Aperture: Accommodates large-diameter busbars or multiple parallel cables for flexible installation 

    800mA High Current Output: Excellent noise immunity for long-distance signal transmission 

    -40°C to +70°C Wide Temperature Range: Suitable for demanding industrial and traction environments 

    100kHz Bandwidth + 1µs Response: Captures fast current transients and high-frequency components 

    Traction Application Optimized: Specifically designated by LEM for traction applications 

     

    Why Choose the LT 4000-S/SP35?

    0.5% High Accuracy + ±0.1% Linearity: Closed-loop technology ensures accurate measurement across the full range for precision control requirements 

    ±6000A Wide Range + 102mm Aperture: Covers the full dynamic range from rated to peak current — accommodates large busbars

    EN 50178 Certified: Complies with industrial safety standards for power installations 

    Traction Application Optimized: Designed for railway traction applications including propulsion and auxiliary converters 

    -40°C ~ +70°C Wide Temperature Operation: Suitable for extreme industrial and traction environments 

     

    LEM LT 4000-S/SP35 Target Applications

    LT4000 series transducers are specifically designated for traction applications , but are also suitable for:

    Railway Traction Systems: Traction converters, auxiliary converters, propulsion and braking choppers

    AC Variable Frequency Drives and Servo Motor Drives: High-power motor current feedback control 

    High-Power Industrial Systems: Substations, high-power drives

    Renewable Energy: PV inverters, wind power converters 

    Power Supplies: UPS systems, welding applications 

     

    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
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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

    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:
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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?
    -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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    Mar 30, 2026
    I love this vendor! Shipping was fast to the US.
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    Great supplier. We have done several orders and all come in prisitine condition as stated.
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