Power Connection Dual Input Utility Of Sg Series 10 & 20 - GE SG Series Installation Manual

3.8.4 Power connection dual input utility of SG Series 10 & 20
SG Series 10 & 20:
L1-1 Rectifier Phase A
L2-1
Rectifier Phase B
L3-1 Rectifier Phase C
PE Ground
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. 3.8.4-2).
L1
Load Phase A
N
Load Neutral
Cable terminations are to the Rectifier / Bypass Input Terminals and Load Output Terminals as shown
above.
Connect wire to the Terminals using appropriate tools and appropriate torque.
Torque specification for Input / Output and DC power connections on Terminals: see Section 3.8.1.
NOTE !
This UPS is only designed to operate in a wye-configured electrical system with a
solidly grounded neutral.
If the UPS is equipped with an input transformer, the secondary of the transformer
must be wye-configured with neutral solidly grounded.
Modifications reserved
GE_UPS_OPM_SGS_ISG_10K_40K_0US_V070.docx
Fig. 3.8.4-1 Power connections Dual Input Utility of SG Series 10 & 20
Max. rating X1 and X2 terminals:
Dual Input Configuration Rectifier / Bypass
Output Load
L2
PE
Critical Power
X2
L3-2
L3
L2-2
L2
L1-2
L1
L1-2
L2-2
L3-2
N - Bypass
Load Phase B
Load Ground
X1
N
L3
L2
L1
N - Bypass
L3-1
L2-1
L1-1
3 AWG (25mm )
2
Bypass Phase A
Bypass Phase B
Bypass Phase C
Bypass Neutral
L3
Load Phase C
Installation Guide SG Series 10-20-30-40 UL S
PE
PE
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