Electrical Installation

Input Current Ratings

Table 1 contains the required circuit breaker ratings for hardwired installations. Circuit breaker ratings for units having an input line cord are determined by the current capacity of the line cord.

Table 1. Required Input Circuit Breaker Sizes (200￿240 Vac, 50/60 Hz)

UPS Capacity

Circuit Breaker Rating

 

 

 

 

3 kVA

25A

 

 

 

 

6 kVA

40A

 

 

 

 

9 kVA

60A

 

 

 

 

12 kVA

80A

 

 

 

 

15 kVA

100A

 

 

 

 

18 kVA

125A

 

 

 

 

 

 

 

NOTE To accommodate the feature of easy system expandability, it is recommended that initial installation of the Powerware 9170 UPS contain wiring to support the maximum capacity of the UPS cabinet: 3 kVA for 3-slot cabinets; 9 kVA for 6-slot cabinets; 18 kVA for 9- and 12-slot cabinets.

See Table 2 for recommended conductor sizes to wire the input circuit breakers.

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Powerware® 9170 User's Guide ￿ LTM-1344 B Uncontrolled Copy