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

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