Installation; Technical Specifications; Physical Dimensions - Lincoln Electric SQUARE WAVE TIG 255 SVM100-A Service Manual

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TECHNICAL SPECIFICATIONS – SQUARE WAVE TIG 255
Standard
Voltage
208/230/460/1/60
230/460/575/1/60
200/240/400/1/50/60
220/380/440/1/50/60
380/415/500/1/50/60
220/380/415/1/50/60
Duty Cycle
40% Duty Cycle
NEMA Class II (40)
60% Duty Cycle
100% Duty Cycle
Welding Current Range
(Continuous)
5-315 Amps
AC and DC
Fuse
Input (Super Lag)
or Breaker
Voltage /
Size
Frequency
125
208/60
100
230/60
50
460/60
50
575/60
125
200/50/60
220/50/60 100
70
380/50/60
60
400/50/60
60
415/50/60
60
440/50/60
50
500/50/60
Height
30.5 in.
775 mm
(1) Unbalanced TIG welding above 180 amps will draw higher input currents; see Supply Connections section.
SQUARE WAVE TIG 255

INSTALLATION

INPUT - SINGLE PHASE ONLY
Input Current at
Rated Output
RATED OUTPUT
OUTPUT
Constant Open
Circuit Voltage
RECOMMENDED INPUT WIRE AND FUSE SIZES
For all Stick, DC TIG, and Balanced AC TIG
Welding at 255A/30V/40% Duty Cycle
Based on the 1993 US. National
Electrical Code
Input Type 75°C
Ampere Copper Wire in
Rating on Conduit AWG
Nameplate (IEC) Sizes
6 (16mm 2 )
81
6 (16mm 2 )
74
10 (6mm 2 )
37
10 (6mm 2 )
30
6 (16mm 2 )
85
6 (16mm 2 )
77
8 (10mm 2 )
46
10 (6mm 2 )
43
10 (6mm 2 )
41
10 (6mm 2 )
39
10 (6mm 2 )
34

PHYSICAL DIMENSIONS

Width
19.0 in.
(Lift bail, add 3.5 in)
485 mm
(Lift bail, add 90 mm)
(1)
81/74/37
74/37/30
85/77/44
77/45/39
45/41/33
77/45/41
Amps
255
200
150
Stick OCV: 76
TIG OCV: 53
For Unbalanced AC TIG Welding Above 180
Amps, 255A/16V/40% Duty Cycle, Auto
Balance Based on the 1993 U.S. National
Type 75°C
Copper Ground
Wire in Conduit
Input
AWG (IEC)
Amperes
Sizes
6 (16mm 2 )
102
8 (10mm 2 )
92
10 (6mm 2 )
46
10 (6mm 2 )
37
6 (16mm 2 )
105
8 (10mm 2 )
96
8 (10mm 2 )
55
10 (6mm 2 )
53
10 (6mm 2 )
51
10 (6mm 2 )
48
10 (6mm 2 )
42
Depth
30.0 in.
760 mm
Code
Number
10022
10023
10024
10025
10026
10134
Volts at Rated Amperes
30
28
26
Auxiliary Power
115 Volts AC, 10 Amps
220Volts AC, 2 Amps
(50/60 Hz. machines only)
Electrical Code
Type 75°C
Copper Ground
Type 75°C
Wire in Conduit
Copper Wire in
AWG (IEC)
Conduit AWG
Sizes
(IEC) Sizes
6 (16mm 2 )
4 (25mm 2 )
6 (16mm 2 )
4 (25mm 2 )
10 (6mm 2 )
8 (10mm 2 )
10 (6mm 2 ) 10 (6mm 2 )
6 (16mm 2 )
4 (25mm 2 )
8 (10mm 2 )
4 (25mm 2 )
8 (10mm 2 )
8 (10mm 2 )
10 (6mm 2 )
8 (10mm 2 )
10 (6mm 2 )
8 (10mm 2 )
10 (6mm 2 )
8 (10mm 2 )
10 (6mm 2 )
10 (6mm 2 )
Weight
300 lbs
(137 kg)