Eaton Cutler-Hammer IQ 300 Series Instructions For Installation, Operation And Maintenance

Effective Date: 2/04IL17574CPage 3-7IQ 300Effective Date: 2/04 Page 3-7For more information visit: www.cutler-hammer.eaton.comAdditionally, the IQ 300 may require connection to a PowerNet network and/or anexternal pulse counter (IQ 320 Base version). The steps for completing each type ofwiring are described in the following sections.Note: Cutler-Hammer recommends using a ferrule connector on all plug-in connec-tors to eliminate stray wires from shorting.ALL WIRING MUST CONFORM TO NATIONAL AND LOCAL CODES.SUFFICIENT ROOM MUST BE PROVIDED FOR ROUTING OF ALLPOWER CABLES. ALL SIGNAL CABLES MUST BE ROUTEDSEPARATELY FROM POWER CABLES. THE CATEGORY 5 CABLECONNECTING THE IQ 300 DISPLAY MODULE AND THE IQ 300 BASEMODULE IS RATED AT 300V. THIS CABLE MUST NOT BE ROUTED INTHE SAME WIRING CHANNEL AS THE SYSTEM POWER.3.3.1 Wiring System Current and VoltageThe IQ 300 must be connected to sources of current and voltage for each phasethat is to be monitored. Current transformers having a 5 A secondary provide thephase current measurement. Phase voltages under 600V may be measured directlyby the IQ 300. Phase voltages over 600V must be measured using potentialtransformers.3.3.2 Wiring Diagrams for Various System ConfigurationsRecommended IQ 300 wiring diagrams for current and potential transformers areshown below in figures 3.5 through 3.14. It is the user’s responsibility to determinewhich wiring diagram applies and to specify and install all current transformers,potential transformers, fuses and other components.3.3.2.1 IQ 330 & IQ 330M Current ConnectorThis warning applies with reference to the current connector.THE IQ 330 AND IQ 330M TERMINAL BLOCK (FIGURE 2.4d) MUST NEVER BEREMOVED WHILE THE UNIT IS ENERGIZED. PERSONAL INJURY AND / OREQUIPMENT DAMAGE MAY RESULT.CAUTIONWARNING