GE Industrial Solutions LP 33U Series 10 & 20 kVA Installation Guide User Manual
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OPM_LPS_3UI_10K_20K_1US_V010.doc
Installation Guide LP 33U Series 10 & 20 kVA / S1
3.7.4
General data table for current protection and wire sizing
Fig. 3.7.4-1 Common Input Rectifier & Bypass
Fig. 3.7.4-2 Dual Input Rectifier & Bypass (option)
The AC values below are current ratings per phase.
These maximum and nominal ratings should be considered when choosing the
appropriate AC over current protection device.
NEC (National Electric Code) Section 210-20 a rules must be applied.
DC current rating is the maximum battery discharge current which the UPS allows.
AC Input
AC Input Rectifier
AC Input Bypass
DC Input
F2
UPS Model
F1
Nom. Max.
F3 F4
LP 33U Series / 10 kVA
27.8 A
25.2 A
27.4 A
27.8 A
34.3 A
LP 33U Series / 20 kVA
55.5 A
50.4 A
54.8 A
55.5 A
68.6 A
Size of Branch Circuit Over current Protection - All Models:
"CAUTION - To reduce the risk of fire, only connect UPS to a circuit provided with (see below)
maximum amperes branch circuit over current protection in accordance
with the NEC (National Electric Code), NSI / NFPA 70
AC Input
AC Input Rectifier
AC Input Bypass
DC Input
UPS Model
F1 F2 F3
F4
LP 33U Series / 10 kVA
35 A
35 A
35 A
50 A
LP 33U Series / 20 kVA
70 A
70 A
70 A
100 A