Appendix i: input wiring requirements – Tweco PAK 44G User Manual
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Manual 0-2686
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APPENDIX
APPENDIX I: INPUT WIRING REQUIREMENTS
NOTES
Refer to Local and National Codes or local authority having jurisdiction for proper wiring requirements.
Cable size is de-rated based on the Duty Cycle of the equipment.
The suggested sizes are based on flexible power cable with power plug installations. For hard-wired installations
refer to local or national codes.
Cable conductor temperature used is 167° F (75° C).
An energy limiting fuse UL Class RK-1 (examples: BUSS LPS/LPN-RK or Gould-Shawmut AZK-A6K) should be
used to minimize damage to Plasma Cutting, Welding or power distribution equipment.
NEVER
use replaceable element fuses like UL Class H, or "one-time" fuses like UL Class K5.
Larger wires may be required if the input wiring length exceeds 25 feet (7.6 m).) or greater.
Power
Input
Power Input
Current
Suggested Sizes (See Notes)
Transformer Voltage
Freq.
3-Ph
3-Ph
Max. Fuse (Amps)
Min. Wire (AWG)
Min. Wire (mm
2
)
(T1)
(Volts)
(Hz)
(kVA)
(Amps)
3-Ph
3-Ph
3-Ph
208
50/60
80
220
300
4/0
120
1
230
50/60
80
200
250
3/0
85
460
50/60
80
100
125
2
35
230
50/60
80
200
250
3/0
85
2
460
50/60
80
100
125
2
35
575
50/60
80
80
100
4
25
380
50/60
80
120
150
1
50
3
415
50/60
80
110
150
2
35
460
50/60
80
100
125
2
35
380
50/60
80
120
150
1
50
4
460
50/60
80
100
125
2
35
500
50/60
80
90
110
2
35
220
50/60
80
200
250
3/0
85
5
380
50/60
80
120
150
1
50
440
50/60
80
100
125
2
35
500
50/60
80
90
110
2
35
180
50/60
80
250
300
250 MCM
150
6
200
50/60
80
225
300
4/0
120
220
50/60
80
200
250
3/0
85
Line Voltages with Suggested Circuit Protection and Wire Sizes
Based on National Electric Code and Canadian Electrical Code