GE Industrial Solutions SG Series 400 & 500 Installation Guide - Manual (Page 26)

3.8.3 Power connection with dual input utility (option)
Position of the PE bolt in case the
cable input is from the bottom of the UPS
PE
SGSU
_400-5
00_S2
_UPS c
onnec
tion se
parate
_GE_0
1US
PE
PE
Typical installation using
common NEMA two hole lugs
PE Input Utility
PE Load
Utility Neutral
Load Neutral
Load
Typical installation using
common NEMA two hole lugs
2
- I
NP
UT
U
TI
LI
TY
B
YP
AS
S
(o
pt
io
n)
L1-2
L3-2
L2-2
L1
L2
L3
L3-1
1 - INPUT UTILITY
RECTIFIER
L1-1
L2-1
+
-
Fig. 3.8.3-1 Power connection with Dual Input Utility (option)
Use 1/2” 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 3.8.1.
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.
Always verify that the received UPS is as per the configuration ordered.
While installing UPS dual source, shorting jumpers BR1, BR2 and BR3 should not be
present. See Fig. 3.8.3-3.
Output Load
L1 Load Phase A L2 Load Phase B L3 Load Phase C
N Load Neutral PE Load Load Ground
Modifications reserved Page 26/41
OPM_SGS_ISG_M40_M50_2US_V021.doc User Manual SG Series 400 & 500 UL S2