3.8.3 Power connection dual input utility (option)
A
PE Load
PE
Input utility
L1
LO
AD
L2
L3
N
PE Load
PE Input utility
1 - I
N
PUT REC
TIFIER
L2-1
L3-1
L1-1
N - Bypass
2 - IN
PU
T BY
PA
SS
(opti
on)
L3-2
L2-2
Typical installation using
common NEMA two hole lugs
L1-2
A
SGS_2
25-30
0_S2_
UPS co
nnectio
n sepa
rate_G
E_01U
S
Fig. 3.8.3-1 Power connections Dual Input Utility (option)
Fix the cables on accessory
“A”
with the enclosed cable ties.
Cable terminations are to the
Rectifier/Bypass Input Lugs
and
Load Output Lugs
as shown above.
Connect wire to the
Lugs
using appropriate tools and appropriate torque.
Torque specification for
Input/Output
and
DC
power connections on
Bus Bars
: see
Section 3.8.1
.
Dual Input Configuration Rectifier / Bypass (option)
L1-1
Rectifier Phase A
L1-2
Bypass Phase A
L2-1
Rectifier Phase B
L2-2
Bypass Phase B
L3-1
Rectifier Phase C
L3-2
Bypass Phase C
PE Input Utility
Ground
N - Bypass
Bypass Neutral
For dual input configurations, a neutral conductor is required from the bypass source
only. The interconnection links
BR1
,
BR2
and
BR3
MUST BE REMOVED (see
Fig. 3.8.3-3)
.
Output Load
L1
Load Phase A
L2
Load Phase B
L3
Load Phase C
N
PE Load
Load Neutral
Load Ground
Modifications reserved
Page 25/40
OPM_SGS_ISG_M22_M30_2US_V010.doc
Installation Guide
SG Series 225 & 300 UL S2
