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LRD07C

The Schneider Electric LRD07C is a TeSys D series differential thermal overload relay . It is a 3-pole thermal overload relay (Class 10A) designed to protect motors against overload, phase failure, and phase imbalance

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Technical Specifications (Parameters) Parameter English Value Product Type Differential thermal overload relay Range / Series TeSys / TeSys D / TeSys Deca Protection Adjustment Range 1.6 ... 2.5 A Thermal Overload Class Class 10A (conforming to IEC 60947-4-1) Compatible Contactors LC1D09 to LC1D38 Rated Operational Voltage [Ue] 690 V AC 0...400 Hz for power circuit Rated Insulation Voltage [Ui] 690 V (conforming to IEC 60947-4-1) Rated Impulse Withstand Voltage [Uimp] 6 kV Auxiliary Contacts 1 NO + 1 NC Conventional Free Air Thermal Current [Ith] 5 A for signalling circuit Phase Failure Sensitivity Tripping current 130% of Ir on two phases, the last one at 0 Tripping Threshold 1.14 ± 0.06 Ir conforming to IEC 60947-4-1 Reset Mode Manual or Automatic (selectable) Degree of Protection IP20 (conforming to IEC 60529) Ambient Air Temperature (Operation) -20 ... +60 °C (no derating) Ambient Air Temperature (Storage) -60 ... +70 °C Temperature Compensation -20 ... +60 °C Mechanical Robustness Vibrations: 6 Gn (IEC 60068-2-6), Shocks: 15 Gn for 11 ms (IEC 60068-2-7) Standards IEC 60947-4-1, UL, CSA, CCC, EAC, BV, DNV-GL, ATEX, UKCA