990-91284-001

Specifications for Maintenance Bypass Cabinet with Input Transformer GVSBPIT25B

UPS rating

10 kW 15 kW 20 kW 25 kW

Input voltage (V)

480/600 480/600 480/600 480/600

Input connections

3-wire (L1, L2, L3, PE)

Nominal input current (A)

13/10 19/15 26/20 32/26

Maximum input current (A)

15/12 23/16 31/25 38/31

Output connections

4-wire (L1, L2, L3, N, PE)

Output voltage (V)

208

Output current (A)

28 42 56 69

Frequency (Hz)

60

Circuit breaker interrupting ratings (kA)

65 kA at 480 V
25 kA at 600 V

Trip Settings for Maintenance Bypass Cabinet with Input Transformer GVSBPIT25B

UPS rating

Breaker type

Ir (A)

tr @ 6 Ir (A)

li (A)

UIB/MBB/UOB UIB MBB/UOB UIB/MBB/UOB
10 kW HJF36150CU31X 50 50 0.5 1.5
15 kW HJF36150CU31X 60 50 4 1.5
20 kW HJF36150CU31X 80 70 4 1.5
25 kW HJF36150CU31X 100 80 4 1.5

Recommended Upstream Protection for Maintenance Bypass Cabinet with Input Transformer GVSBPIT25B

For 480 V Input

UPS rating

Input breaker type

Ir (A)

tr @ 6 Ir (A)

li (A)

10 kW HJL36060U31X 15 4 6
15 kW HJL36060U31X 25 4 6
20 kW HJL36060U31X 35 4 6
25 kW HJL36060U31X 40 4 6

For 600 V Input

UPS rating

Input breaker type

Ir (A)

tr @ 6 Ir (A)

li (A)

10 kW HJL36060U31X 15 4 6
15 kW HJL36060U31X 20 4 6
20 kW HJL36060U31X 25 4 6
25 kW HJL36060U31X 35 4 6

Recommended Cable Sizes for Maintenance Bypass Cabinet with Input Transformer GVSBPIT25B

DANGER
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 2/0 AWG.
Failure to follow these instructions will result in death or serious injury.
NOTE: Overcurrent protection and cable lugs are to be provided by others.

Cable sizes in this manual are based on Table 310.15 (B)(16) of the National Electrical Code (NEC) with the following assertions:

  • 90 °C (194 °F) conductors (75 °C (167 °F) termination)

  • An ambient temperature of 30 °C (86 °F)

  • Use of copper or aluminum 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/Protective Earth (PE in this manual) are sized in accordance with NEC Article 250.122 and Table 250.122.

Copper

10 kW 15 kW 20 kW 25 kW

Input phases (AWG)

8 8 8 8

Input PE (AWG)

10 10 10 10

Output phases (AWG)

8 8 4 4

Output PE (AWG)

10 10 8 8

Neutral* (AWG)

8 4 2 1

DC+/DC- (AWG)

10 6 4 4

DC PE (AWG)

10 10 8 8

Aluminum

10 kW 15 kW 20 kW 25 kW

Input phases (AWG)

6 6 6 6

Input PE (AWG)

8 8 8 8

Output phases (AWG)

6 6 3 2

Output PE (AWG)

8 8 6 6

Neutral* (AWG)

6 3 1 2/0

DC+/DC- (AWG)

8 4 3 2

DC PE (AWG)

8 8 6 6
NOTE: DC cables are only connected in the maintenance bypass cabinet in top cable entry systems for a UPS without conduit box. In all others the DC cables are connected directly in the UPS.
NOTE: The DC cable sizes given here are recommendations – Always follow the specific instructions in the battery solution documentation for DC+/DC- and DC PE cable sizes and ensure that the DC cable sizes match the battery breaker rating.
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