990-5909A-001

Specifications for 480 V Systems

Trip Settings for 480 V

UPS rating

Breaker type

Ir (A)

tr @ 6 Ir

li (x In)

UIB/SSIB MBB/UOB UIB/SSIB/MBB/UOB
20 kW HJF36150CU31X HJF36150CU31X 50 0.5 1.5
30 kW HJF36150CU31X HJF36150CU31X 50 0.5 1.5
40 kW HJF36150CU31X HJF36150CU31X 70 0.5 1.5
50 kW HJF36150CU31X HJF36150CU31X 80 0.5 1.5
60 kW HJF36150CU31X HJF36150CU31X 100 0.5 1.5
80 kW HJF36150CU31X HJF36150CU31X 125 0.5 1.5
100 kW LJF36400CU31X JJF36250CU31X 175 0.5 1.5
120 kW LJF36400CU31X JJF36250CU31X 200 0.5 1.5
150 kW LJF36400CU31X JJF36250CU31X 250 0.5 1.5

Recommended Upstream Protection 480 V

UPS rating

20 kW 30 kW 40 kW 50 kW
 

Input

Bypass

Input

Bypass

Input

Bypass

Input

Bypass

Breaker type

HJF36100U31X

Ir (A)

40 35 60 50 80 70 100 80

tr @ 6 Ir

0.5

li (x In)

1.5

UPS rating

60 kW 80 kW 100 kW 120 kW 150 kW
 

Input

Bypass

Input

Bypass

Input

Bypass

Input

Bypass

Input

Bypass

Breaker type

HJF36150U31X HJF36100U31X JJF36250U31X HJF36150U31X JJF36250U31X LJF36400U31X JJF36250U31X

Ir (A)

125 100 175 125 200 175 250 200 300 250

tr @ 6 Ir

0.5

li (x In)

1.5

Recommended Cable Sizes 480 V

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 4/0 AWG.
Failure to follow these instructions will result in death or serious injury.
NOTE: Overcurrent protection is 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 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 (PE in this manual) are sized in accordance with NEC Article 250.122 and Table 250.122.

UPS rating

20 kW 30 kW 40 kW 50 kW 60 kW 80 kW 100 kW 120 kW 150 kW

Input phases (AWG/kcmil)

8 6 4 3 1 2/0 2 x 1/0 2 x 1/0 2 x 1/0

Input PE (AWG/kcmil)

10 8 8 6 6 6 4 2 x 4 2 x 3

Bypass/output phases (AWG/kcmil)

10 8 6 4 3 1 2/0 2 x 1/0 2 x 1/0

Bypass PE/output PE (AWG/kcmil)

10 10 8 8 8 6 6 2 x 6 2 x 4

Neutral (AWG/kcmil)*

6 4 2 1/0 2/0 2 x 1/0 2 x 1/0 4 x 1/0 4 x 1/0

DC+ / DC- (AWG/kcmil)

4* 2* 1/0* 1/0* 2/0* 4/0* 2 x 1/0* 2 x 3/0* 2 x 4/0*

DC PE (AWG/kcmil)

8 6 6 6 6 4 4 3 2 x 2
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.
NOTE: For 120 kW, use two separate conduits for each of the input, bypass, and output cable sets. Organize cables as illustrated in each conduit to avoid eddy currents (heating).
NOTE: For 150 kW, use two separate conduits for each of the input, bypass, output, and DC cable sets. Organize cables as illustrated in each conduit to avoid eddy currents (heating).

Cable Organization in Separate Conduits for Input/Bypass/Output and DC

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