A-5

A-5

INSTALLATION

The Square Wave TIG 355 should be permanently wired into the power system. Plugs or connectors are not recommended.

TABLE A.1

RECOMMENDED INPUT WIRE AND FUSE SIZES

For all Stick, DC TIG, and Balanced AC TIG Welding

Based on the 1990 U.S. National Electrical Code(2)

 

 

40% Duty Cycle

 

 

 

 

 

 

 

 

 

 

 

 

Input Ampere

 

Type 75°C

 

 

 

 

Input

 

Rating on

 

Wire in Conduit

Grounding Wire

 

Fuse Size

 

Volt/Freq.

 

Nameplate

 

AWG Copper Cond.

AWG Copper Cond.

 

(Super Lag)

 

 

 

 

 

 

 

 

 

 

208/60

110

4

6

150

 

230/60

100

6

6

125

 

460/60

50

8

10

60

 

200/50

137

4

6

150

 

220/50

124

4

6

125

 

440/50

65

8

10

60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TABLE A.2

 

 

 

 

 

 

RECOMMENDED INPUT WIRE AND FUSE SIZES

 

 

 

 

 

For Unbalanced AC TIG Welding Above 230 AMPS

 

 

Based on the 1990 U.S. National Electrical Code(2)

 

 

60% Duty Cycle

 

 

 

 

 

 

 

 

 

 

 

 

Input Amperes

 

 

 

 

 

 

 

 

at 300 Amp

 

Type 75°C

 

 

 

 

Input

 

Unbalanced

 

Wire in Conduit

Grounding Wire

 

Fuse Size

 

Volt/Freq.

 

AC Output

 

AWG Copper Cond.

AWG Copper Cond.

 

(Super Lag)

 

 

 

 

 

 

 

 

 

 

208/60

 

148

 

2

6

 

200

 

230/60

 

134

 

2

6

 

175

 

460/60

 

67

 

6

8

 

80

 

200/50

 

154

 

1

6

 

200

 

220/50

 

140

 

2

6

 

200

 

440/50

 

70

 

6

8

 

90

 

 

 

 

 

 

 

 

 

(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.

SQUARE WAVE TIG 355

Page 13
Image 13
Lincoln Electric IM467-B manual Table A.1 Recommended Input Wire and Fuse Sizes, Volt/Freq Nameplate AWG Copper Cond