Power Connection With Common Input Utility - GE SG 400 Series Installation Manual

3.8.2 Power connection with common input utility

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.
L1-1 Rectifier + Bypass Phase A
L2-1 Rectifier + Bypass Phase B
L3-1
Rectifier + Bypass Phase C
N
Utility Neutral
The interconnection bus bars BR1, BR2 and BR3 MUST REMAIN CONNECTED (see Fig.
3.8.3-3).
L1 Load Phase A
N
Load Neutral
Modifications reserved
OPM_SGS_ISG_M40_M50_2US_V021.doc
PE
PE
Position of the PE bolt in case the
cable input is from the bottom of the UPS
Fig. 3.8.2-1 Power connection with Common Input Utility
Common Input Rectifier / Bypass
Output Load
L2
PE Load
PE Input Utility
PE Load
+
-
Utility Neutral
L1
L2
L3
PE Input Utility
Load Phase B
Load Ground
PE
Typical installation using
common NEMA two hole lugs
Load Neutral
L1-1
1 - INPUT UTILITY
L2-1
RECTIFIER & BYPASS
L3-1
Typical installation using
Load
common NEMA two hole lugs
Ground
L3 Load Phase C
User Manual SG Series 400 & 500 UL S2
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