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Hot Products

LTT88-S;LTT 88-S

HOT OFFER// Authorized Distributor
  • MacroQuest Part#LTT88-S
  • ManufacturerLEM
  • Standard Lead TimeNA
  • Part StatusActive
    • $142.85 - $208.72
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    10-99 Pieces $171.43
    >=100 Pieces $142.85
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    Description FAQ Review
    Description

    LTT88-S Hall Closed-Loop Current Sensor — Reliable Choice for Precision Current Measurement

     

    LTT88-S Key Product Information

    Parameter

    Details

    Model

    LTT88-S

    Brand

    LEM (Switzerland)

    Type

    Hall closed-loop current sensor / current transformer

    Package / Form

    MODULE

    RoHS Status

    Compliant (Lead free / RoHS Compliant)

    Packaging

    Tape & Reel / Cut Tape / Tray / Tube

     

    LTT88-S Product Overview

    The LTT88-S is a high-precision Hall closed-loop current sensor from Swiss manufacturer LEM. In frequency converters and industrial automation control systems, it plays a vital role as the “heart of current monitoring”. It is widely used in Schneider Electric drives (ATV61/71 series), inverter units, UPS systems, CNC machines, motor drives, and power grid monitoring systems.

    LEM is a world-leading manufacturer of current and voltage sensors, known for advanced Hall effect, fluxgate, and air gap technologies in industrial control applications. The LTT88-S is a testament to LEM’s technical excellence – offering high accuracy, high stability, and outstanding noise immunity, making it a trusted choice for engineers in current sensing solutions.

     

    LTT88-S Four Key Advantages

    1. Precision Measurement – Safeguarding Equipment Operation

    The LTT88-S enables non-contact, accurate measurement of DC or AC current with fast response and excellent linearity. It is widely used in frequency converters for ground fault detection and analogue sensing on both DC and AC sides, effectively ensuring safe operation of the drive. In motor control, inverter circuits, and highpower power supplies, its high accuracy provides reliable data for overcurrent protection, power control, and operational optimisation.

    2. Electrical Isolation – Eliminating Safety Risks

    Using the Hall effect principle, the sensor measures current via magnetic field induction without direct contact with the circuit under test. This not only avoids the potential electrical connection risks of conventional transformers, but also significantly improves system safety and reliability.

    3. Broad Compatibility – Fits Many Applications

    The LTT88-S can be directly used in Schneider Electric ATV61/71 series frequency converters (30kW/37kW) as a current transformer. As a standard MODULE package component, it also adapts to a wide range of variable frequency drives, inverters, UPS systems, inverter welders, electrolytic and electroplating equipment, as well as microcomputer monitoring systems.

    4. High Reliability – Stable Operation in Harsh Environments

    The LTT88-S features an all-welded construction for reliable electrical contact, excellent vibration resistance, and immunity to oil and dirt. Combined with LEM’s inherently low temperature drift, it delivers stable and accurate current detection signals even in demanding industrial environments, greatly enhancing long-term system reliability.

     

    LTT88-S Typical Applications

    Frequency converters & motor drives – real-time three-phase current monitoring for closed-loop control and overcurrent protection

    Inverter units – reliable operation and precise current feedback for inverters

    UPS systems – fast current response to protect critical loads

    CNC machines – high-accuracy current sensing for precision machining control

    Power grid monitoring systems – current measurement and protection in electrical networks

     

    Why Choose LTT88-S?

    Comparison Aspect

    Advantage of LTT88-S

    Technology origin

    Swiss LEM, a global leader in sensors with deep technical expertise

    Measurement principle

    Hall closed-loop, high noise immunity, fast response

    Safety

    Noncontact sensing, complete electrical isolation

    Compatibility

    Direct fit for Schneider ATV61/71 series; wide adaptability

    Reliability

    Welded construction, low inductance, performs well in harsh conditions

    Environmental compliance

    RoHS compliant, meets green manufacturing requirements

     

    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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    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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    Mar 16, 2026
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    Dec 03, 2025
    Great company to work with. Simon and Alice AA+++
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