Liebert PPC Precision Power Center

1.2.2 Side-Section Electrical ConnectionsInstallation InstructionsFive conductors (three-phase conductors, neutral and ground) are furnished with the distribution sectionfor connection to the transformer section in the field, along with an intercabinet frame groundconductor.For 300-450kVA units, the distribution section phase conductors are connected directly to the transformerterminals:• Phase A (wire 14) to X1• Phase B (wire 15) to X2• Phase C (wire 16) to X3The distribution section neutral (wire 47) and ground (wire 50) conductors are connected to the transformersection main ground bus bar (see unit wiring diagram shipped with unit).For 800kVA units, each distribution section is fed from an output breaker mounted in the transformersection.For 300-450kVA units with current monitoring, route each side-section conductor through the appropriatecurrent transformer (CT) in the main unit.NOTEDistribution section conductors must pass through the current transformers in the samedirection as the main unit panelboard conductors. Use the existing main unit panelboardwiring for reference.10