Tweco CE Ultima 150 - Manual (Page 41)

Manual 0-2530 35 APPENDICES
APPENDIX I: CIRCUIT PROTECTION & WIRING
Recommended Circuit Protection and Wire Sizes
Input Power Input Current Recommended Sizes
Voltage Freq. 3-Ph 3-Ph Fuse (Amps) Wire (AWG)
(Volts) (Hz) (kVA) (Amps) 3-Ph 3-Ph
380 50/60 6 12 15 14
415 50/60 6 12 15 14
Line Voltages with Recommended Circuit Protection and Wire Sizes (Based on Table
310-16, 1987 National Electric Code) and Table 4, Canadian Electrical Code.
NOTES
An energy-limiting fuse UL Class RK-1 (examples: BUSS LPS/
LPN-RK or Gould-Shawmut AZK-A6K) should be used to mini-
mize damage to plasma welding, plasma cutting, and power distri-
bution equipment.
NEVER use replaceable element fuses like UL Class H, or "one-
time" fuses like UL Class K5.