RC48C - Bender

RC48CLegend to Wiring diagramComponents:NGRK2CTE6...Neutral grounding resistor, 25A or less.External load switch, disconnects the system being monitored incase of an alarm.Residual current transformer.Locate the residual current transformer as shown in the wiringdiagram.Only pass the active conductors (all phases and the N conductor,if available) through the residual current transformer. Theconductors G (Ground) and GC (Ground Check) must not bepassed through the transformer. Connect the transformer to theterminals k and l of the RC48C.Do not ground any of the CT connections.The residual current transformer is equipped with overcurrentprotection.Termination device to terminate the conductors G (Ground) andGC (Ground Check) of the cable. Always locate the terminationdevice at the end of the cable near to the electrical load.Connect the terminal G of the termination device to theenclosure of the electrical load to ensure that the low-resistanceconnection between enclosure and ground will be monitored.E6S-T Termination device.The same function as E6S, but additionally provided with aremote disconnecting means via an external break contact(stop).Connect the terminals G and GC, as already described above.In addition, connect the terminals GC and T to the external NCcontact.If the external NC contact is activated, an alarm ground checkis triggered in the RC48C. The alarm relay disconnects theconnected circuit of the system and the red ground-check LEDflashes.RI2000GC Remote alarm indicator and operator panel with TESTbutton (T), RESET button (R), “Alarm Ground Fault” LED(GFA) and “Ground Check Safe” LED (GCS). The functionsof the buttons and LEDs and the designations correspond to therespective operating elements on the RC48C.MFElectrical load supplied by the cable being monitored.Short-circuit protection supply voltage: a 6 A fuse isrecommended.Connections:A1,A2 Connection supply voltage Us.11,12,14 and 21,22,24 Two voltage free changeover contacts,trip in case of alarm. UV operation or N/O operation selectable.NC, NC Select N/O operation or N/C operation for the free changeovercontacts:Bridge open: N/O (shunt) operationk,lBridge closed: N/C operation (UV) (factory setting)Connection residual current transformer, alarm LED flashes ifthe CT connection is interruptedGC. G Connection to the conductor G (Ground) and GC (GroundCheck) of the cable.Connection to the remote alarm indicator and operator panelRI2000GC:T Connection external TEST buttonR Connection external RESET buttonGFA Connection external “Alarm Ground Fault”LEDGCS Connection external “Ground Check Safe” LEDU+, U- Output DC 12 V, e.g. for the supply of the remote alarm indicatorand operator panel RI2000GC.C1, C2, U+ Bridge supplying the remote alarm indicator and operatorpanel RI2000GC with supply voltage from the RC48C. Bender Industrial Products - 700 Fox Chase - Coatesville PA 19320 - Tel. (800)-356-4266 - Fax. (610) 383-7100 - www.bender.org4

RC48CTechnical dataInsulation coordination acc. to IEC 60664-1:Rated insulation voltageAC 250 VRated impulse withstand voltage/contamination level 2.5 kV/3Voltage Ranges:Supply voltage U SFuse recommended:Power consumptionAC/DC 60 ... 264 V, 50 / 60 Hz6 A slow fuseapprox. 5 VA at AC 60 Vapprox. 8.5 VA at AC 264 VResidual-Current Monitoring:Response value, residual currentadjustable 0.1 ... 1 Aresp. 1 ... 10 AAccuracy + 0 ... - 25 %Response delayadjustable 0.1 ... 2 sAccuracy of the response delay ± 20 %Continuous short circuit current200 A2500 A for 2 secondsOperating modelatchingGround-Conductor Monitoring:Response value, series resistance fault40 ΩAccuracy+/-10 ΩNo-load voltageDC12VΟutput impedance240 ΩRated current of the measuring loopAC25V continuousProtection against stray voltageAC120V for 3 secondsDelay on release1.5 sResponse time, series resistance faults0.2 sResponse time, cross resistance faults0,2 sAccuracy of the response time ± 20 %Operating modenon latchingInputs:Connection to the residual current transformer:Single wire, 0.75 mm 2 (AWG 18) up to 1 m (3’)Single wire, twisted 0,.5 mm 2 (AWG 18) 1 ... 10 m (3 ... 30’)Shielded cable 0.75 mm 2 (AWG 18) (shield to Ground) 10 ... 25 m(30 ... 75’)Outputs:Switching elements (alarm relay)Rated contact voltageLimited making capacityLimited breaking capacityPermissible number of operating cyclesOperating mode (alarm relay), selectableSwitching elements (GFA, GCS)Rated contact voltageLimited making capacityLimited breaking capacityPermissible number of operating cycles2 Form C contactsAC 250 V / DC 300 VAC/DC 5 AAC/DC 2/0.2 A12000 cyclesN/O (shunt) operationor N/C (UV) operation1 NO contact eachAC 250 V / DC 300 VAC/DC 5 AAC/DC 2/0.2 A12000 cyclesType Tests:Test of the electromagnetic compatibility(EMC)Immunity according to IEC 62020Emission according to EN 50081Emissions according to EN 55011/CISPR11class AGeneral data:Ambient temperature, during operation - 40 °C ...+ 60 °C(233 K ... 333 K)Storage temperature range - 55 °C ... + 80 °C(218 ... 353 K)Climatic class acc. to IEC 607213K5Operating modecontinuous operationMountingany positionConnectionscrew terminalsCross sectional area of connecting cable, single wire 0,2 ... 4 mm 2(AWG 24 to 12)Cross sectional area of connecting cable, flexible 0,2 ... 2,5 mm 2(AWG 24 to 14)Protection class according to DIN EN 60529Built-in components IP 30Terminals/with terminal covers IP 20Flammability classUL94V-0Weightapprox. 360 gApplied StandardsCSA M421-00: July 2000: Use of electricity in minesAS 2081.1 - AS2081.5: Electrical equipment for Coal and Shale MinesIEC 62020:1998-08 Residual Current Monitors Bender Industrial Products - 700 Fox Chase - Coatesville PA 19320 - Tel. (800)-356-4266 - Fax. (610) 383-7100 - www.bender.org5

RC48CAccessoriesDimensions in mm (inches)Termination device E6Termination device E6-50Termination device E6STermination unit E6S-TRemote alarm indicator and operator panelRI2000GC(Installation into standard “one-gang (G1) box”.)The termination devices E6 and E6-50 aredelivered without an enclosure. Bender Industrial Products - 700 Fox Chase - Coatesville PA 19320 - Tel. (800)-356-4266 - Fax. (610) 383-7100 - www.bender.org6

RC48CResidual current transformersOnly BENDER residual current transformers are to be used for RC48C units.Ordering detailsType Designation Part.NoRC48C-935 Ground-Fault Ground-Check Monitor B9401 3002E6 Termination device for RC48C, P= 5W B9401 3008(without enclosure)E6-50 Termination device for RC48C, P= 5W B9401 3009(without enclosure)E6S Termination device for RC48C, P= 5W B9401 3006E6S-T Termination device for RC48C with B9401 3007an integrated resistor for remotedisconnection, P= 50WRI2000GC Remote alarm indicator and operator B9407 1000panel for RC48CCT-M70 Residual current transformer ID= 2.8" B911 777CT-M105 Residual current transformer ID= 4.2" B911 778 Bender Industrial Products - 700 Fox Chase - Coatesville PA 19320 - Tel. (800)-356-4266 - Fax. (610) 383-7100 - www.bender.org7