Recommended Cable Sizes for 3:3 UPS
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hazard of electric shock, explosion, or arc flash
All wiring must comply with all applicable national and/or
electrical codes. The maximum allowable cable size is 95 mm2.
Failure to follow these instructions will result in death or serious injury.
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Cable sizes in this manual are based on table B.52.12 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 F
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For AC cables: Maximum length 50 m with a line voltage drop <3%
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For DC cables: Maximum length 15 m with a line voltage drop <1%
PE cable size is based on table 54.2 of IEC 60364-4-54.
If the ambient temperature is greater than 30 °C, larger conductors are to be selected in accordance with the correction factors of the IEC.
UPS rating | 10 kVA | 20 kVA | 30 kVA | 40 kVA | 60 kVA | 80 kVA | 100 kVA | 120 kVA | 160 kVA | 200 kVA |
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Input phases (mm2) | 16 | 16 | 16 | 25 | 35 | 50 | 70 | 70 | 2x50 | 2x70 |
Input PE (mm2) | 16 | 16 | 16 | 16 | 16 | 25 | 35 | 35 | 50 | 70 |
Bypass/output phases (mm2) | 16 | 16 | 16 | 16 | 25 | 35 | 50 | 50 | 70 | 2x50 |
Bypass PE/output PE (mm2) | 16 | 16 | 16 | 16 | 16 | 16 | 25 | 25 | 35 | 50 |
Neutral (mm2) | 16 | 16 | 25 | 35 | 50 | 50 | 70 | 70 | 70 | 2x50 |
DC+/DC- (mm2) | 16 | 16 | 25 | 35 | 50 | 70 | 70 | 2x50 | 2x70 | 2x95 |
DC PE (mm2) | 16 | 16 | 16 | 16 | 25 | 35 | 35 | 50 | 70 | 95 |