Welcome to the Schneider Electric Website

Welcome to our website.

Select your location

TeSys LR97D

Electronic overcurrent relays 0,3 A to 38 A

Part of TeSys

TeSys LR97D electronic overcurrent relays provide protection against locked rotor, seizure or mechanical shocks. Unlike the thermal overload relays, these relays do not have a thermal memory. They have definite time characteristics with adjustable current threshold and time delay.

TeSys LR97D
  • Features

    • Direct mounting beneath TeSys Model d contactors up to LC1D38, width 45 mm
    • Screw clamp or lug connections
    • External 24 to 230 V AC power supply
    • Manual or automatic reset
    • Protection functions:
      - Overcurrents due to overload or mechanical jamming: starting and steady state operation overtorque monitoring - Can be used as torque surge protection
      - Specific protection for locked rotor
      - Specific protection for phase failure.
    • Current threshold adjustment using 2 separate time settings (starting and trip in steady state operation)
    • Selection of 3-phase or single-phase operation
    • Diagnostics via 2 LED indicators (starting, overtorque, rotor locked and phase failure)
    • Auxiliary contact: 1 C/O.


    Benefits

    Machine protection combined with motor starter
    With its simple setting and signalling features, the electronic overcurrent relay, or overtorque protection relay, assures optimal protection of your machine.
    Due to its compactness  (45 mm wide) it easily integrates in the motor starter functions.

    Applications

    Industry, infrastructures, buildings:
    • Machines with high resistive torque
    • High inertia machines
    • Machines with high risk of jamming during steady state operation.
    These relays do not have thermal memory and can be used as specific motor protection in the case of severe duty applications:
    • Machine with long starting time
    • Machine with frequent starting.

EcoStruxure™ for Your Business

EcoStruxure lets you thrive in today's digital world. Make better business decisions with scalable and converged IT/OT solutions.

Reach Us

Have a question, complaint or is there some feedback you’d like to send us to make your experience with Schneider Electric better?

FAQ

Easily find and share the answer you are looking for from our online FAQ service.

Distributor Locator

A simple tool to locate easily your nearest Schneider Electric distributor.

MySchneider App

Discover our new mySchneider app which offers tailored services, 24/7 self-service, and easy access to expert support and information. Download and register now to get access to recommended services and more.

Need information?

Browse our resource section and find the most useful tools and documents for all our products.
Compare products: /