11.3 External Breakers
The G8000 UPS units are not equipped with circuit breakers. The electrical contractor should provide the external breakers for AC input, Bypass input, DC input, and AC output. See Figure 11.1 for the position of the breakers.
Table 11.9 shows the minimum rating for each capacity of G8000 UPS breakers. The Bypass input and the AC output require
Table 11.9 External Breaker Rating.
| AC input / Bypass input / AC output | DC input |
Capacity | Minimum Breaker Rating | Minimum Breaker Rating |
| ||
|
|
|
100kVA | 480V - 150A | 500VDC – 400A |
|
|
|
125kVA | 380V - 250A | 500VDC – 600A |
|
|
|
150kVA | 480V - 225A | 500VDC – 600A |
|
|
|
180kVA | 380V - 350A | 500VDC – 750A |
|
|
|
225kVA | 480V - 350A | 500VDC – 900A |
|
|
|
250kVA | 380V - 500A | 500VDC – 1100A |
|
|
|
300kVA | 480V - 450A | 500VDC – 1,200A |
|
|
|
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