Eaton Power Xpert Solar 1500 User Manua

Electrical Connections24 Power Xpert Solar 1500/1670 kW Inverter MN141001EN—October 2014 www.eaton.comTable 8. 3-Wire Connection—Inverter Point-of-Common Coupling InterfaceAppendix B references the contents of the flex-bus kit andthe instructions which accompany the inverter. No provisionsfor a cabled connection is provided, or allowed.As illustrated in Figure 21:● Prepare each mating bus face with Penetrox “E” orsuitable equivalent for copper connections● DO NOT use Penetrox “A” or similar compounds madefor Al to Al or Al to Cu connections● Apply a tamper-proof torque-marking paint, once thehardware is properly torquedFigure 20. Phase LocationsFigure 21. AC Output Phase Connections: ThroatConnection DetailsGrounded ConductorsThe grounded-conductor busbar has provisions for up to 24circuits using 2-hole compression lugs. Bolt size is 1/2-inch;bar material is 1/4-inch thick. Minimum hardware is grade-5and UL-approved crimp-on type ring terminal lugs. Aluminumhardware kits can be utilized, if they are Listed for use withthe specific compression lugs. Select lugs to match thebusbar’s 2-hole: 1/2-inch dia. at 1.75-inch spacing as notedin Table 3 and Table 6. Figure 22 and Figure 23 illustratethe connection points.When planning for cable-routing, the grounded-conductorbus terminals will match the number of OCPD (fuse) inputsutilized on the non-grounded bus.Location Wire NumberWire Size(Max–Min) (Al/Cu Rated) Torque CommentsThroat Terminals A B C Supplied Flex-Bus (kit) 50–60 ft-lb (68–81 Nm) See Appendix BInstructions P52791AC EGCAC GETGround 1/2 inch 1-Hole Compression Lug See Appendix D Equipment Ground90 °C TerminalsPhase APhase BPhase C12.8012.006.33DETAIL ATHROAT, SIDE VIEW12.006.75DETAIL BTHROAT, TOP VIEW