GE lp33 20 series Installation Manual

Critical PowerModifications reserved Page 30/43GE_UPS_ISG_LPS_3UL_20K_30K_2US_V010.docx Installation Guide LP33 Series 20 & 30 UL S24.9.2 Dual input utility (option)Fig. 4.9.2-1 Dual input utility (option)Dual input utilityOn request, the UPS can bedelivered for dual input utility.Two independent lines (F2 and F3)supply separately the rectifier andthe bypass inputsWith this configuration, when therectifier-input fuses are opened, theautomatic bypass and themaintenance bypass are suppliedby the other line.Fig. 4.9.2-2 Terminals for dual input utilityX1 Mains 1 - Rectifier input utility connectionL1-1 = Rectifier Phase AL2-1 = Rectifier Phase BL3-1 = Rectifier Phase CN1 = Mains NeutralPE = Main GroundX2 Mains 2 - Bypass input utility connectionL1-2 = Bypass Phase AL2-2 = Bypass Phase BL3-2 = Bypass Phase CN = Mains NeutralX3 Load - Output load connectionL1 = Load Phase AL2 = Load Phase BL3 = Load Phase CN2 = Load Neutral PE = Load GroundConnect wire to the terminals by usingappropriate tools and appropriate torque shownin Section 4.8.1.Max. rating X1, X2 , X3 and X4 terminals: LP33 Series 30 1/0 AWG (70mm2)LP33 Series 40 4/0 AWG (95mm2)NOTE !For UPS correct operation, the input utility phase rotation must be clock-wise.Inside the UPS, all neutrals N1 and N2 are connected together.NOTE !This UPS is designed to operate in a wye-configured electrical system with a solidlygrounded neutral.LPS33U_030-040_Connection separate_02USUtility 1X4BatteryLoadX1X3L1-1L2-1L3-1N1PEL1L2L3N2PE- 0 +PEUtility 2X2L1-2L2-2L3-2N