Lincoln Electric SQUARE WAVE TIG 355 Service Manual page 14

A-6
The Square Wave TIG 355 should be permanently
wired into the power system. Plugs or connectors are
not recommended.
Based on the 1990 U.S. National Electrical Code
Input Ampere
Input Rating on
Volt/Freq. Nameplate
208/60
230/60
460/60
200/50
220/50
440/50
Based on the 1990 U.S. National Electrical Code
Input Amperes
at 300 Amp
Input Unbalanced
Volt/Freq. AC Output
208/60
230/60
460/60
200/50
220/50
440/50
(2) Article 630 of the 1990 U.S. National Electrical Code allows the rated ampacity of the supply conductors to be determined by multiplying the
nameplate rating by the appropriate multiplier, depending on the duty cycle of the welder.
INSTALLATION
TABLE A.1
RECOMMENDED INPUT WIRE AND FUSE SIZES
For all Stick, DC TIG, and Balanced AC TIG Welding
(2)
Type 75°C
Wire in Conduit
AWG Copper Cond.
110 4
100 6
50 8
137 4
124 4
65 8
TABLE A.2
RECOMMENDED INPUT WIRE AND FUSE SIZES
For Unbalanced AC TIG Welding Above 230 AMPS
(2)
Type 75°C
Wire in Conduit
AWG Copper Cond.
148 2
134 2
67 6
154 1
140 2
70 6
SQUARE WAVE TIG 355
Grounding Wire
AWG Copper Cond.
6
6
10
6
6
10
Grounding Wire
AWG Copper Cond.
6
6
8
6
6
8
A-6
40% Duty Cycle
Fuse Size
(Super Lag)
150
125
60
150
125
60
60% Duty Cycle
Fuse Size
(Super Lag)
200
175
80
200
200
90