Smart earth leakage protection - Circutor

Industrial earth leakage protectionWRU-10Differential relay with built-in transformerand displayDescriptionFeaturesElectronic differential protection relay with builtin28 mm transformer, constituting one unit.}}Type A high-insulation, with high-frequencycurrent filter and high insulation. Monitoringusing true root mean square.}}Display with LEDs and display:- differential protection settings.- protection trigger current.- protection status messages, etc.}}Units with three programmable output contactrelays, one switched and two simple. Themain relay is for the protection provided by thecontact or trigger relay of the automatic switchwhile the two others are for the pre-alarm.}}It also has a voltage input for external triggeringand re-arming.}}Assembly on DIN Rail 46277 (EN 50022)}}Reduced three-module size.}}Connection by pluggable terminals.ApplicationWRU-10 relays allow for intelligent differentialprotection. Due to their design features, theyassure maximum safety and continuity in electricalservice, avoiding unwanted tripping..Information on the state of the protected linesis made available through the visualization ofthe instantaneous leakage value on the displayscreen together with prealarm signals, allowingfor effective preventive maintenance.ProtectionClassMeasurementSensitivity PROGRAMABLEDelay PROGRAMABLETest y ResetRemote ControlAssociated circuit breakerLED indicatorCircuit breaker controlA superimmunizedTrue root mean square (TRMS)0,03 ... 3 A, scalable up to 30 A by SETUPTime defined: 0,02 ...1 s, scalable up to 10s by SETUP.Inverse curve: Instantaneous or selective (IEC 60947-2)With built-in buttons, T & RExternal Test Option, voltage-free input tripping.Contact or Circuit breaker + trigger coil• Power supply voltage• Trip due to leakage• Pre-alarm- Protection parameters- Leakage current/trip reading- Leakage current/trip reading.-TEST statuses and externaltripping.Through an NO/NC switched relay, dependingon the connection with the circuit breakerElectric featuresAuxiliary power supply230 Vac (± 30 %) 50 / 60 HzOutput contacts250 Vac, 5 A / 230 Vac, 250 mAOperating temperature -20 ...+70 ºCConstruction featuresFixing DIN Rail 46722 (EN 50022)Dimensions3 modulesWeight275 gDegree of protectionIP 20, IP 41 back panelStandardsIEC 60947-2, IEC 60755, IEC 62020, IEC 61008P1-25