Toshiba – Toshiba 4200FA CT/XT User Manual
Page 27
TOSHIBA
4.3.1
Recommended 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
(L1)(L2)(L3)
Tightening
NEUTRAL
AWG
AWG
NEUTRAL
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.
50 kVA
Input/ Output (GND)
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)
50 kVA
Phase: (A) (B) (C)
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