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Cable Installation
18
Figure 11 Connecting Nfinity to Maintenance Bypass with transformer
NOTE
1. SINGLE-SOURCE FEED—If feeding the Maintenance Bypass Cabinet from a single
source, the input connection may be made to either TB1 or TB2.
2. DUAL-SOURCE FEED—If feeding the Maintenance Bypass Cabinet from a dual source,
the UPS input supply connection must
be made to TB1 and the bypass input supply
connection must
be made to TB2. The jumpers between TB1 and TB2 must be removed.
3. If connected equipment is a combination of 208 VAC and 120 VAC, use a three-phase panel
board connected to the output terminal TB6.
G
TB1
TB2
G
TB3 TB4
123
TB5
TB6
L1
L2
L1
L2
L1 L2 G 1 2 3 4
1
2
3
4
120
208
240
120
L1 L2 G 1 2 3 1 2 3 4 5
GEC
TB3TB2TB1
Flexible
conduit
208 240
NFINITY UPS
N
FINITY MAINTENANCE BYPASS CABINET
W
ITH TRANSFORMER
See Nfinity
user manual
for details on
connecting
GEC.
G
G
G
Remove these two
wires for dual source
(see NOTE below)
Ensure that both tap
selectors are set to the
correct input voltage
GEC
Input 2
Input 1