TOSHIBA

4.3.1Recommended Wire Size and Torque Requirements For UPS Input and Output Terminals

Minimum Wire Size and Torque Requirements

UPS Input and Output Terminals 50 kVA

(USE MINIMUM 75 °C INSULATED COPPER WIRING)

 

INPUT:

 

 

 

 

 

OUTPUT:

 

(H1) (H2) (H3)

 

AWG

 

 

NEUTRAL

 

(L1)(L2)(L3)

AWG

 

NEUTRAL

Tightening

 

 

 

 

 

AWG

 

 

 

 

AWG

Torque

208 V

 

1/0

 

 

250MCM

208/120 V

1/0

 

250MCM

200 in-lbs.

220 V

 

1/0

 

4/0

 

220/127 V

1/0

 

4/0

200 in-lbs.

240 V

 

1

 

 

N/A

240 V

1

 

N/A

200 in-lbs.

380 V

 

4

 

1/0

 

380/220 V

4

 

1/0

200 in-lbs.

400 V

 

4

 

1/0

 

400/230 V

4

 

1/0

200 in-lbs.

415 V

 

4

 

1

 

415/240 V

4

 

1

200 in-lbs.

480 V

 

6

 

2

 

480/277 V

6

 

2

200 in-lbs.

600 V

 

6

 

 

N/A

600 V

6

 

N/A

200 in-lbs.

All wire sizes are per the NEC. Maximum Wire Size for Input and Output is 1/0 AWG.

Neutral Conductors are rated @ 1.73 or 200% of phase conductors, per NEC. Maximum Wire Size for Neutral is 250MCM.

 

Input/ Output (GND)

 

 

50 kVA

 

 

AWG

 

Tightening Torque

 

208-240 VAC

6

 

200 in-lbs.

 

380-480 VAC

6

 

200 in-lbs.

 

600 VAC

8

 

200 in-lbs.

Battery (+) / (-)

 

50 kVA

 

AWG

 

Tightening Torque

(+) (-)

250MCM

 

200 in-lbs.

Maximum Wire Size for Battery is 250MCM.

Minimum Wire Size and Torque requirements

UPS Optional Bypass Input Terminals TB4 50 kVA

(USE MINIMUM 75 °C INSULATED COPPER WIRING)

 

 

Phase: (A) (B) (C)

 

 

50 kVA

 

 

 

 

Input: (H1) (H2) (H3)

 

AWG

NEUTRAL AWG

Tightening Torque

 

 

 

208/120 V

1/0

250MCM

200 in-lbs.

 

 

 

220 V

1/0

4/0

200 in-lbs.

 

 

 

240 V

1

N/A

200 in-lbs.

 

 

 

380 V

4

1/0

200 in-lbs.

 

 

 

400 V

4

1/0

200 in-lbs.

 

 

 

415 V

4

1

200 in-lbs.

 

 

 

480 V

6

2

200 in-lbs.

 

 

 

600 V

6

N/A

200 in-lbs.

 

Maximum Wire Size for Input is 1/0 AWG. Maximum Wire Size for Neutral is 250MCM.

4200FA CT/XT User’s Manual

26

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Toshiba 4200FA CT/XT user manual L1L2L3, Tightening Torque, Battery + 50 kVA, Phase a B C 50 kVA Input H1 H2 H3

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