Vertiv LIEBERT ITA2 MBC Guía De Instalación Rápida página 2

LIEBERT® ITA2™ MBC
Quick Installation Guide
MBC Terminal Blocks
MBC Main Input
rA bA rB
A B C
MBC Main Output
2. Referring to MBC Main Input
terminal block in the MBC
Terminal Blocks illustration
above, connect input cables:
• Phase A to busbar
between rA and bA
• Phase B to busbar
between rb and bB
• Phase C to busbar
between rC and bC
• Neutral to busbar
on N and N.
• Ground to the PE busbar
Dual-Input Connection
to the MBC
1. Remove the shorting busbars
between Terminals rA – bA,
rB – bB, and rC – bC.
2. For rectifier input, refer to MBC
Main Input terminal block in the
MBC Terminal Blocks illustration
above, and connect input cables:
• Phase A to rA.
• Phase B to rB
• Phase C to rC
• Neutral to N
• Ground to the PE busbar
3. For bypass input, refer to MBC
illustration, and connect bypass
input cables:
• Phase A to bA
2
590-2144-665A/SL-26256QS_REV2
rC bC N N
bB
N
• Phase B to bB
• Phase C to bC
• Neutral to N
• Ground to the PE busbar
CONNECTING MBC
DEDICATED OUTPUT
The MBC may be hardwired to a
dedicated output-distribution panel.
Referring to the MBC Main Output
terminal block in the MBC Terminal
Blocks illustration, connect output
cables to MBC:
• Phase A to A
• Phase B to B
• Phase C to C
• Output neutral to N busbar
• Safety ground to the ground
(PE) bus bar
CONNECTING
MBC-TO-UPS CABLES
MBC to Single-input UPS
1. Leave the shorting busbars in
place on the UPS input terminal
block.
2. Referring to the MBC Terminal
Blocks illustration above, and
the UPS Terminal Blocks
illustration on the next page,
connect cables from the MBC's
PE
N N
MBC
to Dual-input UPS Rectifier
1. Remove the shorting busbars
2. Referring to the MBC Terminal
UPS Input
bB rB bA rA
bC rC
C B A
N
UPS Output
"UPS Input terminal block" to
the UPS: "Input terminal block:"
• rA to busbar
between rA and bA
• rB to busbar
between rb and bB
• rC to busbar
between rC and bC
• N to N.
• Ground from PE busbar to
PE ground stud (next to pA
on UPS output)
between Terminals rA – bA,
rB – bB and rC – bC of the UPS
input terminals.
Blocks illustration above, and
the UPS Terminal Blocks
illustration on the next page,
connect cables from the MBC's
"UPS Input terminal block" to
the UPS: "Input terminal block:"
• rA to rA
• rB to rB
• rC to rC
• N to N.
• Ground from PE busbar to
PE ground stud (next to pA
on UPS output)