Specifications for 208 V Systems
Input Specifications 208 V
Bypass Specifications 208 V
UPS rating |
10 kW | 15 kW | 20 kW | 25 kW |
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Voltage (V) |
200/208/220 |
200/208/220 |
200/208/220 |
200/208/220 |
Connections |
4-wire (L1, L2, L3, N, G) WYE |
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Bypass voltage range (V) |
200 V: 180-220 |
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Frequency range (Hz) |
50/60 ± 1, 50/60 ± 3, 50/60 ± 10 (user selectable) |
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Nominal bypass current (A) |
29/28/27 |
44/42/40 |
58/56/53 |
73/70/66 |
Nominal neutral current (A) |
50/48/45 |
75/72/68 |
100/96/91 |
125/120/114 |
Maximum short circuit rating* |
65 kA RMS |
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Protection |
Built-in backfeed protection and fuses |
Output Specifications 208 V
Battery Specifications 208 V
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Hazard of electric shock, explosion, or arc flash
Protection of the energy storage device: An overcurrent protective device must be
located in close proximity to the energy storage device.
Failure to follow these instructions will result in death or serious injury.
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All values are based on 40 battery blocks.
Recommended Cable Sizes 208 V
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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 1/0 AWG.
Failure to follow these instructions will result in death or serious injury.
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The maximum number of cable connections per busbar: 2 on input/output/bypass busbars; 2 on DC+/DC- busbars; 4 on N busbar; 5 on G busbar.
Cable sizes in this manual are based on Table 310.15 (B)(16) of the National Electrical Code (NEC) with the following assertions:
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90 °C (194 °F) conductors (75 °C (167 °F) termination)
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An ambient temperature of 30 °C (86 °F)
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Use of copper conductors
If the ambient temperature is greater than 30 °C (86 °F), larger conductors are to be selected in accordance with the correction factors of the NEC.
Equipment grounding conductors (EGC) are sized in accordance with NEC Article 250.122 and Table 250.122.
Copper
UPS rating |
10 kW | 15 kW | 20 kW | 25 kW |
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Input phases (AWG/kcmil) | 8 |
4 |
3 |
2 |
Input EGC (AWG/kcmil) | 8 |
8 |
8 |
6 |
Bypass/output phases (AWG/kcmil) | 8 |
6 |
4 |
3 |
Bypass EGC/output EGC (AWG/kcmil) | 8 |
8 |
8 |
8 |
Neutral (AWG/kcmil) | 6 |
3 |
1 |
2 x 1/0 |
DC+/DC-(AWG/kcmil)* | 10 |
8 |
6 |
4 |
DC EGC (AWG/kcmil) | 10 |
10 |
8 |
8 |
Recommended Upstream Protection 208 V
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Hazard of electric shock, explosion, or arc flash
For parallel systems, instantaneous override (Ii) values must not be set higher than
800 A. Place the label 885-92557 adjacent to the upstream circuit breaker to inform
about the hazard.
Failure to follow these instructions will result in death or serious injury.
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hazard of fire
Failure to follow these instructions can result in injury or equipment damage.
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