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TeSys LT47 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 LT47 relays from 0.5 A to 60 A prevent overcurrents due to overload or mechanical jamming (starting and steady state operation overtorque monitoring). They can also be used for torque surge protection.
Machine protection combined with motor starter. TeSys LT47 electronic overcurrent relays (or overtorque protection relays) assure optimal protection for motors and other mechanical devices, such as gear boxes.
TeSys LT47 electronic overcurrent relays do not have thermal memory and can be used as specific motor protection in the case of severe duty applications, such as machines with long starting times or frequent starting. The range is suitable for a variety of motor protection applications in industry, infrastructures and buildings, including: