Recommended Cable Sizes for 208 V
 DANGER |
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hazard of electric shock, explosion, or arc flash
All wiring must comply with all applicable national and/or electrical codes.
Failure to follow these instructions will result in death or serious injury.
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NOTE: Overcurrent protection is to be provided by others.
Cable sizes in this manual are based on table B.52.5 of IEC 60364-5-52 with the following assertions:
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90 °C conductors
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An ambient temperature of 30 °C
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Use of copper conductors
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Installation method C
If the ambient temperature is greater than 30 °C, larger conductors are to be selected in accordance with the correction factors of the IEC.
Cable Size for Cables Between UPS and Battery Breaker for Easy UPS 3M
| Battery breaker boxes | Connection | 50 kVA | 60 kVA | 80 kVA | 100 kVA |
|---|---|---|---|---|---|
| 1xE3MBBB60K80H | DC+, N, DC- (mm²) |
70 |
70 |
– |
– |
| PE (mm²) |
35 |
35 |
– |
– |
|
| 2xE3MBBB60K80H | DC+, N, DC- (mm²) |
50 |
50 |
50 |
70 |
| PE (mm²) |
25 |
25 |
25 |
35 |
|
| 1xE3MBBB100K200H | DC+, N, DC- (mm²) |
– |
– |
2X70 |
2X70 |
| PE (mm²) |
– |
– |
70 |
70 |
Cable Size per String for Cables Between Battery Breaker and Battery Bank For Easy UPS 3M
| Number of battery strings | Connection | 50 kVA | 60 kVA | 80 kVA | 100 kVA |
|---|---|---|---|---|---|
| 1 battery string | Batt+, N, Batt- (mm²) |
70 |
70 |
2X70 |
2X70 |
| PE (mm²) |
35 |
35 |
70 |
70 |
|
| 2 battery strings | Batt+, N, Batt- (mm²) |
35 |
35 |
70 |
70 |
| PE (mm²) |
16 |
16 |
35 |
35 |
|
| 3 battery strings | Batt+, N, Batt- (mm²) |
16 |
16 |
50 |
50 |
| PE (mm²) |
16 |
16 |
25 |
25 |
|
| 4 battery strings | Batt+, N, Batt- (mm²) |
16 |
16 |
35 |
35 |
| PE (mm²) |
16 |
16 |
16 |
16 |