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A-1

INSTALLATION

TECHNICAL SPECIFICATIONS – SQUARE WAVE TIG 255

INPUT - SINGLE PHASE ONLY

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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

Input Current at

Rated Output (1)

81/74/37

74/37/30

85/77/44

77/45/39

45/41/33

77/45/41

RATED OUTPUT

Amps

255

200

150

OUTPUT

Constant Open

Circuit Voltage

Stick OCV: 76

TIG OCV: 53

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)

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RECOMMENDED INPUT WIRE AND FUSE SIZES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For all Stick, DC TIG, and Balanced AC TIG

 

 

 

For Unbalanced AC TIG Welding Above 180

 

 

 

 

 

 

 

 

Welding at 255A/30V/40% Duty Cycle

 

 

 

Amps, 255A/16V/40% Duty Cycle, Auto

 

 

 

 

 

 

 

 

Based on the 1993 US. National

 

 

 

Balance Based on the 1993 U.S. National

 

 

 

 

 

 

 

 

 

 

Electrical Code

 

 

 

 

 

 

Electrical Code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type 75°C

 

 

 

 

 

 

 

 

 

 

Type 75°C

 

 

 

 

 

Fuse

 

 

Input

 

Type 75°C

 

Copper Ground

 

 

 

 

 

 

Type 75°C

 

 

 

Copper Ground

 

 

Input

 

 

(Super Lag)

 

 

Ampere

 

Copper Wire in

 

Wire in Conduit

 

 

 

 

 

 

Copper Wire in

 

 

 

Wire in Conduit

 

 

Voltage /

 

 

or Breaker

 

 

Rating on

 

Conduit AWG

 

AWG (IEC)

 

 

 

Input

 

 

Conduit AWG

 

 

 

AWG (IEC)

 

 

Frequency

 

 

Size

 

 

Nameplate

 

(IEC) Sizes

 

Sizes

 

 

 

Amperes

 

 

(IEC) Sizes

 

 

 

Sizes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

208/60

 

 

125

 

 

81

 

6 (16mm2)

 

6 (16mm2)

 

 

 

102

 

 

4 (25mm2)

 

 

 

6 (16mm2)

 

 

230/60

 

 

100

 

 

74

 

6 (16mm2)

 

8 (10mm2)

 

 

 

92

 

 

4 (25mm2)

 

 

 

6 (16mm2)

 

 

460/60

 

 

50

 

 

37

 

10 (6mm2)

 

10 (6mm2)

 

 

 

46

 

 

8 (10mm2)

 

 

 

10 (6mm2)

 

 

575/60

 

 

50

 

 

30

 

10 (6mm2)

 

10 (6mm2)

 

 

 

37

 

 

10 (6mm2)

 

 

 

10 (6mm2)

 

 

200/50/60

 

 

125

 

 

85

 

6 (16mm2)

 

6 (16mm2)

 

 

 

105

 

 

4 (25mm2)

 

 

 

6 (16mm2)

 

 

220/50/60

 

 

100

 

 

77

 

6 (16mm2)

 

8 (10mm2)

 

 

 

96

 

 

4 (25mm2)

 

 

 

8 (10mm2)

 

 

380/50/60

 

 

70

 

 

46

 

8 (10mm2)

 

8 (10mm2)

 

 

 

55

 

 

8 (10mm2)

 

 

 

8 (10mm2)

 

 

400/50/60

 

 

60

 

 

43

 

10 (6mm2)

 

10 (6mm2)

 

 

 

53

 

 

8 (10mm2)

 

 

 

10 (6mm2)

 

 

415/50/60

 

 

60

 

 

41

 

10 (6mm2)

 

10 (6mm2)

 

 

 

51

 

 

8 (10mm2)

 

 

 

10 (6mm2)

 

 

440/50/60

 

 

60

 

 

39

 

10 (6mm2)

 

10 (6mm2)

 

 

 

48

 

 

8 (10mm2)

 

 

 

10 (6mm2)

 

 

500/50/60

 

 

50

 

 

34

 

10 (6mm2)

 

10 (6mm2)

 

 

 

42

 

 

10 (6mm2)

 

 

 

10 (6mm2)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PHYSICAL DIMENSIONS

Height

Width

Depth

Weight

30.5 in.

19.0 in.

30.0 in.

 

 

(Lift bail, add 3.5 in)

 

300 lbs

 

 

 

(137 kg)

775 mm

485 mm

760 mm

 

(Lift bail, add 90 mm)

(1) Unbalanced TIG welding above 180 amps will draw higher input currents; see Supply Connections section.

SQUARE WAVE TIG 255

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Lincoln Electric SVM100-A service manual Installation, Technical Specifications Square Wave TIG