GE Industrial Solutions LP 33 Series 50 & 60 kVA Installation Guide - Manual (Page 25)

Modifications reserved Page 25/42
OPM_LPS_3UI_50K_60K_0US_V010.doc Installation Guide LP 33 Series 50-60 kVA
3.7.4 General dates 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 33 Series / 50 kVA 145A 145 A 174 A 139 A 175 A
LP 33 Series / 60 kVA 178 A 178 A 214 A 167 A 210 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 33 Series / 50 kVA 200 A 200 A 200 A 213 A
LP 33 Series / 60 kVA 225 A 225 A 225 A 250 A
Wire sizing according to NEC Section 210-20 (a) Table 310-16
For recommended wiring, see below table.
AC INPUT:
3-Phase, 4 wires plus GND
AC OUTPUT: 3-Phase, 4 wires plus GND
DC INPUT: 3 wires (positive, negative and neutral) plus GND
Use following single copper wire, AWG size (temperature rating of conductor)
UPS Model Rectifier Input Bypass Input AC Output DC Input
LP 33 Series / 50 kVA 4 x 3/0 (75°C) 4 x 3/0 (75°C) 4 x 3/0 (75°C) 3 x 3/0 (90°C)
LP 33 Series / 60 kVA 4 x 3/0 (90°C) 4 x 3/0 (90°C) 4 x 3/0 (90°C) 3 x 4/0 (90°C)