Installation Planning Guide for 300kVA UPS
Standard System: 480V Input, 480V Output
General Mechanical Information
Dimensions | Weight | Floor |
| Approximate |
| Mechanical Clearance (Inches)from UPS |
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| Heat Rejection |
| for Ventilation and Maintenance Access |
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(W x D x H) | Loading |
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Inches | Lbs. | Lbs./ft. 2 |
| Btu/Hr |
| Top | Front | Bottom | Sides** | Back |
51.2” x 32.7” x 80.7”* | 1230 | 189 | 31,659 |
| 20” | 40” | 0” | 0” | 0” |
*Height includes removable fan housing – Frame height is 78.7”.
**0” clearance for peripheral equipment, 1” clearance for walls.
Primary AC Input (480V 3-Phase / 3-Wire)
| Maximum Input Power Demand |
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| Suggested External |
| External Feeder Wire Size: Min. – Max. Per Phase | ||
| Normal Mode (Recharge Mode) |
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| Overcurrent Protection |
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| kVA | PF | Amps |
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| Amps |
| AWG or kcmil at 75º C Temp. Rating |
| 312 (337) | >0.99 | 376 (406) |
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| 500 AT |
| (2) x 250 kcmil - (2) x 300 kcmil |
Alternate (Bypass) AC Input (480V 3-Phase / 3-Wire)
Maximum Input Power Demand |
| Suggested External |
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| External Feeder Wire Size: |
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| Overcurrent Protection |
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| Min. – Max. Per Phase |
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kVA | PF | Amps (Max.) |
| Amps |
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| AWG or kcmil at 75º C Temp. Rating |
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300 | 1.0 | 361 |
| 500 AT |
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| (2) x 4/0 - (2) x 250 kcmil |
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Battery Input (480VDC Nominal)
| Battery Capacity Required |
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| Discharge at Full |
| Suggested External Overcurrent Protection | External Feeder Wire Size: |
| for Full Load Output |
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| Load Output |
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| kWB |
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| Amps DC |
| Amps | AWG or kcmil at 75º C Temp. Rating |
| 309 @ 1.0 PF |
| 772 |
| 800 AT | (2) x 400 kcmil |
* Contact factory rep for alternate configurations.
AC Output (480V 3-Phase / 3-Wire)
Rated Output Power |
| Suggested External |
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| External Feeder Wire Size: |
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| Overcurrent Protection |
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| Min. – Max. Per Phase |
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kVA | PF | Amps |
| Amps |
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| AWG or kcmil at 75º C Temp. Rating |
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300 | 1.0 | 361 |
| 500 AT |
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| (2) x 4/0 – (2) x 250 kcmil |
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Important Notes:
1.Maximum input current is limited to 106% of the
2.Output load conductors are to be installed in separate conduit from input conductors.
3.Control wires and power wires are to be installed in separate conduits.
4.Recommended AC input and output overcurrent protection based on continuous full load current per NEC.
5.Wiring shall comply with all applicable national and local electrical codes.
6.Grounding conductors to be sized per NEC Article
-Primary AC Input: 3φ,
-Alternate AC Input: 3φ,
-AC Output: 3φ,
- DC Input:
7.Nominal battery voltage based on the use of VRLA type batteries (2.0 volts/cell nominal).
8.Maximum battery discharge current based on lowest permissible discharge voltage of 1.67 VPC.
9.DC wires should be sized to allow not more than a
10.Weights do not include batteries or other auxiliary equipment external to the UPS.
11.Cable sizing calculations based on the following assumptions:
-Minimum size is smallest size based on ampacity at 30 °C.
-Maximum size cable is based on cable bend radius limitations at the UPS terminals.
-Not more than 3
-Temperature rating of copper conductors/terminals: 75 °C.
-Reference: 2005 NEC Handbook, Table 310.16.
NOTE: Consult latest edition of applicable national and local codes for possible variations.
12.Ratings of wires and overcurrent devices are suggested minimums. Consult with a registered Professional Engineer within your local area for proper size selections.
TOSHIBA INTERNATIONAL CORPORATION
13131 West Little York Road
Houston, TX 77041
Telephone: (800) 231-1412
Fax: (713) 896-5212
Web Site: www.toshiba.com/ind
G9000 Installation and Operation Manual | 89 |