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OPM_SGS_ISG_M75_M75_2US_V010.doc
Installation Guide
SG Series 750 UL S2
&
SG Series 750 T12 UL S2
3.9.3 Power connection dual input utility (option)
SGS
_
750_S2_U
P
S
c
onnec
tion s
epara
te_G
E_
01_U
S
PE Load
PE Input Utility
L1-1
1 - INPUT UTILITY RECTIFIER
L3-1
L2-1
+
common NEMA two hole lugs
Typical installation using
-
PE Load
PE Input Utility
L2
Neutral Utility (Bypass)
Neutral Load
L3
LOAD
L1
must be screwed onto the bus bars
wit 2 bolts M4x10
Typical installation using
common NEMA two hole lugs
PHASE BARRIER NOMEX SHEET
After cable connections to the
bus bars are done, the
In
ca
se
of
du
al
in
pu
t u
tilit
y
MUST BE
REM
O
V
ED
!
BR
1,
BR
2 a
nd
BR
3
L1-2
2 - INPUT UTILITY BYPASS
L2-2
L3-3
(option)
Fig. 3.9.3-1 SG Series 750 & SG Series 750 T12 power connections Dual Input Utility (option)
Use
M12x35 bolts
for the cable connections on INPUT / OUTPUT power wiring
Bus Bars
.
Cable terminations are to the
Rectifier Input
/
Output Bus Bars
as shown above.
Connect wire to the
Bus Bars
using appropriate tools and appropriate torque.
Torque specification for two hole lugs on
Bus Bars
: see
Section 3.9.1
.
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. 3.9.3-3)
.
Output Load
L1
Load Phase A
L2
Load Phase B
L3
Load Phase C
N
Load Neutral
PE Load
Load Ground
