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4 over-current protection, Over-current protection – MaxPower Corp Gamatronic Power+ M50-RM User Manual

Page 57

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Gamatronic Electronic Industries Ltd.

POWER+ RM

50

K

VA, N.Am. Std. – User Guide, Release 1.9

41

5.4

Over-Current Protection

CAUTION!
To reduce the risk of fire, connect the UPS only to a circuit provided with
maximum branch circuit over-current protection as indicated in
Table 8, in
accordance with the National Electric Code, NSI/NFPA 70.

ATTENTION !

Pour réduire le risque du feu, reliez l'onduleur seulement à un circuit équipé de
protection maximum de surintensité de circuit de branche comme indiqué au
Table 8, selon le code électrique national, au NSI/NFPA 70.

Ensure that the lines into and out of the UPS have protective circuit breakers installed in
accordance with the ratings listed in Table 8 for your Power+ model.

Table 8: Required external over-current protection and external wire size

UPS

OUTPUT

CAPACITY

L

INE

F

IELD WIRE SIZE

AS PER

UL

*

R

EQUIRED

EXTERNAL

CIRCUIT BREAKER

RATING

*

10 kVA

Rectifier ac input

Bypass ac input

Ac output

35 A

20 kVA

Rectifier ac input

Bypass ac input

Ac output

70 A

30 kVA

Rectifier ac input

Bypass ac input

Ac output

110 A

40 kVA

Rectifier ac input

Bypass ac input

Ac output

150 A

50 kVA

Rectifier ac input

Bypass ac input

Ac output

3/0 AWG (for 175 A)

175 A

* The recommended wire size is based on a 50 kVA system. The required circuit breaker size is
based on the actual maximum power of the system in kVA.