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Prok dv's recommends and suggests to use Digital MicroprocessorMicrocontroller based, Earth Leakage Relay (ELR) with core Balance Current transformer (CBCT ZCT) for typical areas like UPS Inverter application, Mining, Cement, Petroleum & Oil Refineries, Steel, Paper. more...
Din Rail Mounting Earth Leakage Relay - (Without CBCT) 4 + 4 Digit Dual Display Model No.- ELR-500 Size (HxWxD)mm - Din rail Mounting (110 x 35 x 75) Aux Supply - 85-270VAC, 50Hz Input - 30mA to 3.00A AC through External CBCT Output - Relay-1 For Tripping more...