26
4200FA Installation and Operation Manual
4.3.1
Recommended Wire Size and Torque Requirements for 50kVA
Minimum wire sizes are based on NEC Table 310.16. Neutral wire is sized per NEC Article
310.15(B), Grounding wires sized per NEC Article 250.122. Maximum wire capacity of the
power terminal lugs is 250kcmil.
Minimum / Maximum Wire Size and Torque Requirements
UPS Input and Output Terminals
TB1
50 kVA*
(USE MINIMUM 75 °C INSULATED COPPER WIRING)
INPUT:
OUTPUT:
(H1) (H2)
(H3)
AWG
NEUTRAL
AWG
(L1)(L2)(L3
)
AWG
NEUTRAL
AWG **
Tightening
Torque
208 V
2/0 – 250 kcmil
250 kcmil
208/120 V
2/0 – 250 kcmil
250 kcmil
200 in-lbs.
220 V
2/0 – 250 kcmil
4/0 – 250 kcmil
220/127 V
2/0 – 250 kcmil
4/0 – 250 kcmil
200 in-lbs.
240 V
2/0 – 250 kcmil
N/A
240 V
1/0 – 250 kcmil
N/A
200 in-lbs.
380 V
2 – 250 kcmil
1/0 – 250 kcmil
380/220 V
4 – 250 kcmil
1/0 – 250 kcmil
200 in-lbs.
400 V
3 – 250 kcmil
1/0 – 250 kcmil
400/230 V
4 – 250 kcmil
1/0 – 250 kcmil
200 in-lbs.
415 V
3 – 250 kcmil
1 – 250 kcmil
415/240 V
4 – 250 kcmil
1 – 250 kcmil
200 in-lbs.
480 V
4 – 250 kcmil
2 – 250 kcmil
480/277 V
6 – 250 kcmil
1 – 250 kcmil
200 in-lbs.
600 V
6 – 250 kcmil
N/A
600 V
6 – 250 kcmil
N/A
200 in-lbs.
Minimum / Maximum Wire Size and Torque requirements
UPS Optional Bypass Input Terminals
TB4
50 kVA
(USE MINIMUM 75 °C INSULATED COPPER WIRING)
Phase: (A) (B) (C) (N)
Input: (H1) (H2) (H3)
50 kVA
AWG*
NEUTRAL AWG*
Tightening Torque
208/120 V
1/0 – 250 kcmil
250 kcmil
200 in-lbs.
220 V
1/0 – 250 kcmil
250 kcmil
200 in-lbs.
240 V
1/0 – 250 kcmil
N/A
200 in-lbs.
380 V
2 – 250 kcmil
2/0 – 250 kcmil
200 in-lbs.
400 V
3 – 250 kcmil
2/0 – 250 kcmil
200 in-lbs.
415 V
3 – 250 kcmil
1 – 250 kcmil
200 in-lbs.
480 V
4 – 250 kcmil
2 – 250 kcmil
200 in-lbs.
600 V
6 – 250 kcmil
N/A
200 in-lbs.
Minimum / Maximum Wire Size and Torque requirements
UPS Battery Input Terminals
TB1
50 kVA
(USE MINIMUM 75 °C INSULATED COPPER WIRING)
Battery (+) / (-)
50 kVA
AWG*
Tightening Torque
(+) (-)
4/0 – 250 kcmil
200 in-lbs.
Minimum / Maximum Wire Size and Torque requirements
UPS Ground Lugs 50 kVA
(USE MINIMUM 75 °C INSULATED COPPER WIRING)
Input/ Output (GND)
50 kVA
AWG
Tightening Torque
208-240 VAC
6 – 250 kcmil
200 in-lbs.
380-480 VAC
6 – 250 kcmil
200 in-lbs.
600 VAC
8 – 250 kcmil
200 in-lbs.
Summary of Contents for 4200FA CT
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