Manual 0-2957 A-1 APPENDIX
APPENDIX 1: INPUT WIRING REQUIREMENTS
NOTES
The table above is based on the following output current and voltage: 125VDC @ 40A
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.
Input Power Input Current Input Suggested Sizes (See Notes)
Voltage Freq. 1-Ph 3-Ph 1-Ph 3-Ph Fuse (Amps) Wire (AWG) Wire (Canada)
(Volts) (Hz) (kVA) (kVA) (Amps) (Amps) 1-Ph 3-Ph 1-Ph 3-Ph 1-Ph 3-Ph
208 50/60 11.8 57 60 6 6
230 50/60 11.8 52 60 6 6
400 50/60 11.1 16 20 10 10
4606011.727301010
4606010.816201212
6006010.510151212
Line Voltages with Suggested Circuit Protection and Wire Sizes
Based on National Electric Code and Canadian Electrical Code
CutMaster 81 Input Wiring Requirements
Power Input Current Input
Voltage Frequency 3-Ph 3-Ph Fuse (Amps)
Wire (mm
2
)
(Volts) (Hz) (kVA) (Amps) 3-Ph 3-Ph
400/415 50 11.1 16 20 4
Input Suggested Sizes (See Notes)
Line Voltages with Suggested Circuit Protection and Wire Sizes
Based on National Electric Code and Canadian Electric Code
CE CutMaster 81 Input Wiring Specifications