Table 2 Recommended Cable Size and Tightening Torque for 225kVA UPS.
The tightening torque must be greater than 90 percent of the recommended torque.
Cable Size and Tightening Torque for 225kVA UPS
(Only copper wires allowed)
Block Number | Cable Size | Tightening Torque |
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|
|
1 | Two 2/0 or larger | 5.8 |
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|
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2 | Two 2/0 or larger | 5.8 |
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|
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3 | Two 2/0 or larger | 5.8 |
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|
|
4 | Two 2/0 or larger | 5.8 |
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|
|
5 | Two 2/0 or larger | 5.8 |
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|
|
6 | Two 2/0 or larger | 5.8 |
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|
|
7 | Two 2/0 or larger | 5.8 |
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|
|
8 | Two 2/0 or larger | 5.8 |
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|
|
9 | Two 2/0 or larger | 5.8 |
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|
|
10 | Two 2/0 or larger | 5.8 |
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|
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11 | Two 2/0 or larger | 5.8 |
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|
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12 | Two 4/0 or larger | 5.8 |
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|
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13 | Two 4/0 or larger | 5.8 |
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|
|
NOTE: Maximum cable size is 350MCM.
*Two battery strings (consult factory if using one battery string).
Three cable knockout plates are provided at bottom of the 150/225kVA UPS. Holes are recommended in Figure 6. The installing electrical contractor must punch the 5 holes.
0.8”
Plate #1 Plate #2 Plate #3
4” Dia.
0.4”
AC Input | Bypass | AC Output | Battery | Control |
|
|
|
| Wires |
2” Dia.
3 solid rectangles show the cable knockout plates’ outline. The dashed rectangle shows the UPS opening under the plates.
Figure 6 - Cable knockout plates at the bottom (150 and 225kVA).
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