Overview
Front view (interior)
Ground lugs—Ground lugs are provided for the Main Input switch, Bypass Input switch, and Cross Tie Output breaker. The main input lug has two holes: one for a main ground and one for the GEC. See the instruction sheet, Certified Electrician’s Instructions for more information.
Main Input switch (A)— The main power source connects to your system at the Main Input switch. See the instruction sheet, Certified Electrician’s Instructions for more information.
Optional Bypass Input switch (B)— If you ordered a PDU that accepts input power from two different sources, your secondary power source connects to your system at the Bypass Input switch (Q10). The switch requires 208V input and 4-wire input conductors. The secondary source must have its phases in sync with the main input source (A). See the instruction sheet, Certified Electrician’s Instructions for more information.
Optional Cross Tie Output circuit breaker (X) or MCCB subfeed— You have the option of selecting ether a cross tie or MCCB subfeed breaker. The cross tie is a 4-pole circuit breaker that outputs 208V, 320A to a bypass input switch on a different system. The MCCB subfeed outputs 208V, 150A or 208V 225A to a bypass input switch on a different system. Either circuit breaker allows systems to be cascaded. See “Site Planning” in the InfraStruXure 80kW Installation and Start-Upand the instruction sheet, Certified Electrician’s Instructions for more information.
PDU monitoring unit circuit breakers—Power supplied to the PDU monitoring unit is controlled through these two circuit breakers.
Fuses—These fuses protect the silicon-controlled rectifiers in the UPS bypass static switch. The fuses are present only on dual-fed PDUs and single-fed PDUs without a transformer.
Optional bottom feed—If you ordered main input wiring to be routed under the floor, these terminal blocks are your connection to the Main Input switch, Bypass Input switch, and Cross Tie Output breaker.
80kW InfraStruXure PDU—Operation and Configuration | 7 |
