Rated Output; Additional Output Capacity; Wire And Fuse Sizes; Physical Dimensions - Lincoln Electric PRECISION TIG 375 Service Manual

A-3
Duty Cycle-Applications
40%
AC/DC Stick / Balance TIG
Unbalance (70% Penetration
60%
AC/DC Stick / Balance TIG
Unbalance (70% Penetration
100%
AC/DC Stick / Balance TIG
Unbalance (70% Penetration
Output Current Maximum Open
Range
Circuit Voltage
2Amps DC
(STICK AND TIG)
to
AC/DC OCV: 80
*
420Amps AC-DC
RECOMMENDED INPUT WIRE AND FUSE SIZES
For all Stick, DC TIG, and Balanced AC TIG Welding at
375A/40% Duty Cycle without Standard Power Factor
Correction Capacitors
Based on the 1999 U.S. National Electrical Code
Input
Input Fuse Ampere
Voltage /
(Super Lag) Rating
phase/ or Breaker Rating on
Frequency 1
Size Nameplate
208/1/60 150 112
230/1/60 102
150
460/1/60
80
575/1/60
50
220-230/1/50/60 150 119
380-400/1/50/60
110
415/1/50/60
110
Height
K1833-1,-2
31.0 in.
K1834-1,
787 mm
K2622-1,-2
49.7 in.
K1903-1
1262 mm
K2624-1
OPERATING TEMPERATURE RANGE
-20°C to +40°C (-04° to +104°F)
TRANSFORMER INSULATION CLASS
1
ALSO CALLED 'INVERSE TIME" OR "THERMAL/MAGNETIC " CIRCUIT BREAKERS; CIRCUIT BREAKERS WHICH HAVE A DELAY IN TRIPPING ACTION THAT DECREASES AS
THE MAGNITUDE OF CURRENT INCREASES.
*
50/60H IEC Max. range exceeds 310A.
Z
INSTALLATION
RATED OUTPUT - IEC 60974-1 (K1834-1)
Volts at Rated Amperes
) AC TIG
#
) AC TIG
#
) AC TIG
#

ADDITIONAL OUTPUT CAPACITY

Type of Output
CC (Constant Current)
AC/DC (GTAW)
Stick (SMAW)
Type 75°C Type 75°C
Copper Wire in
Copper Ground
Conduit AWG
Wire in
(IEC) Sizes
Conduit AWG
40°C (104°F)
Ambient (IEC) Sizes
3 (26.7 mm 2 ) 6 (13.3 mm 2 )
3 (26.7 mm 2 ) 6 (13.3 mm 2 )
8 (8.4 mm 2)
6 (13.3 mm 2)
51
8 (8.4 mm 2) 10 (5.3mm 2)
41
3 (26.7 mm 2 ) 6 (13.3 mm 2 )
4 (21.2 mm 2) 6 (13.3 mm 2 )
69
6 (13.3 mm 2 )
4 (21.2 mm 2)
63

PHYSICAL DIMENSIONS

Width
22.0 in.
559 mm
28.0 in.
711 mm

TEMPERATURE RANGES

180°C (H)
PRECISION TIG 375
35.0
24.2
34.0
23.0
32.0
21.0
Auxiliary Power
K2622-1,-2, K1903-1, K1833-1,-2, K2624-1
15Amp Circuit Breaker and NEMA 5-15R Duplex
Receptacle for up to:
115VAC 8Amp Auxiliary Power Receptacle
115VAC 5 Amp weld Switched Cooler Receptacle
K1834-1
5 Amp Circuit Breaker
and grounded 220VAC
Euro(Schuko) receptacle
For Unbalanced AC TIG Welding Above 275 Amps:
350A/40% Duty Cycle, Auto-Balance Penetration with
out Standard Power Factor Correction Capacitors
Based on the 1999 U.S. National Electrical Code
Copper Wire in
Fuse Input
Conduit AWG
(Super Lag) Ampere
(IEC) Sizes
or Breaker Rating
40°C (104°F)
1
Size
1 (42.4 mm 2 )
200 139
2 (33.6 mm 2 )
175 126
6 (13.3 mm 2)
80 63
6 (13.3 mm 2)
70 50
3 (26.7 mm 2 )
150 118
4 (21.2 mm 2)
68
110
4 (21.2 mm 2)
110 62
Depth
26.0 in.
660 mm
41.0 in.
1041 mm
STORAGE TEMPERATURE RANGE
-40°C to +85°C (-40° to +185°F)
A-3
Amps
375
350
350
325
300
275
Type 75°C Type 75°C
Copper Ground
Wire in
Conduit AWG
Ambient
(IEC) Sizes
6 (13.3 mm 2 )
6 (13.3 mm 2 )
8 (8.4 mm 2)
8 (8.4 mm 2)
6 (13.3 mm 2 )
6 (13.3 mm 2 )
6 (13.3 mm 2 )
Weight
507 lbs.
230 kgs.
751 lbs.
341 kgs.