Appendix 1: input wiring requirements – Tweco Merlin 6000 Plasma Cutting CE Slave Power Supply User Manual
Page 35
Manual 0-2603
A-1
APPENDIX
APPENDIX 1: 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.
In p u t
P o w er In p u t
C u r r en t
S u g g ested S iz es (S ee N o t e)
V o lt ag e
F r eq .
3- P h
3- P h
F u se (A m p s)
W ir e ( A W G ) W ir e ( C an ad a) W ir e ( m m 2)
( V o lt s)
( H z )
( kV A )
( A m p s)
3- P h
3- P h
3- P h
3- P h
380
50/60
34
51
60
6
6
14
415
50/60
34
47
60
8
6
9
Li ne V ol tages w i th S ugges ted C i r c ui t P rotec ti on and W i r e S i z es
B as e d on N ati onal E l ec tr i c C ode and C anadi an E l ec tr i c al C ode