Main range TeSys product name TeSys LRK product or component type Differential thermal overload relay device short name LR2K relay application Motor protection product compatibility LP4K LC1K LP1K LC7K network type DC AC thermal overload class Class 10A conforming to IEC 60947-4-1 thermal protection adjustment range 0.110.16 A [Ui] rated insulation voltage Power circuit: 690 V conforming to BS 4941 Power circuit: 690 V conforming to IEC 60947 Power circuit: 750 V conforming to VDE 0110 group C Power circuit: 600 V conforming to CSA C22.2 No 14