Lincoln Electric PRECISION TIG 375 IM703-A - Manual (Page 9)

K1833-1, -2
K1834-1
K1903-1
A-2 INSTALLATION
PRECISION TIG 375
A-2
ADDITIONAL OUTPUT CAPACITY
Output Current
Range
2Amps DC
to
420Amps AC-DC *
Type of Output
CC (Constant Current)
AC/DC (GTAW)
Stick (SMAW)
Maximum Open
Circuit Voltage
(STICK AND TIG)
AC/DC OCV: 80
Auxiliary Power
K1903-1, K1833-1, K1833-2
15Amp Circuit Breaker and NEMA 5-15R Duplex
Receptacle for up to:
115VAC 8 Amp Auxiliary Power Receptacle
115VAC 5 Amp weld Switched Cooler Receptacle
K1834-1
5 Amp Circuit Breaker
and grounded 220VAC
Euro(Schuko) receptacle
Height Width Depth Weight
31.0 in. 22.0 in. 26.0 in. 507 lbs.
787 mm 559 mm 660 mm 230 kgs.
49.7 in. 28.0 in. 41.0 in. 751 lbs.
1262 mm 711 mm 1041 mm 341 kgs.
PHYSICAL DIMENSIONS
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 Z IEC Max. range exceeds 310A.
TEMPERATURE RANGES
OPERATING TEMPERATURE RANGE
-20 ° C to +40 ° C (-04 ° to +104 ° F)
TRANSFORMER INSULATION CLASS 180°C (H)
STORAGE TEMPERATURE RANGE
-40 ° C to +85 ° C (-40 ° to +185 ° F)
For all Stick, DC TIG, and Balanced AC TIG Welding
at 375A/40% Duty Cycle with out Standard Power
Factor Correction Capacitors
Based on the 1999 U.S. National Electrical Code
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
RECOMMENDED INPUT WIRE AND FUSE SIZES
Input
Voltage /
phase/
Frequency
208/1/60
230/1/60
460/1/60
575/1/60
220-230/1/50/60
380-400/1/50/60
415/1/50/60
Input
Ampere
Rating
Rating on
Nameplate
112
102
51
41
119
69
63
Input
Ampere
Rating
139
126
63
50
118
68
62
Type 75°C
Copper
Ground Wire in
Conduit AWG
(IEC) Sizes
6 (13.3 mm2)
6 (13.3 mm2)
8 (8.4 mm2)
10 (5.3mm2)
6 (13.3 mm2)
6 (13.3 mm2)
6 (13.3 mm2)
Type 75°C
Copper
Ground Wire in
Conduit AWG
(IEC) Sizes
6 (13.3 mm2)
6 (13.3 mm2)
8 (8.4 mm2)
8 (8.4 mm2)
6 (13.3 mm2)
6 (13.3 mm2)
6 (13.3 mm2)
Fuse
(Super Lag)
or Breaker
Size 1
150
150
80
50
150
110
110
Fuse
(Super Lag)
or Breaker
Size 1
200
175
80
70
150
110
110
Type 75°C
Copper Wire in
Conduit AWG
(IEC) Sizes
40°C (104°F)
Ambient
3 (26.7 mm2)
3 (26.7 mm2)
6 (13.3mm2)
8 (8.4 mm2)
3 (26.7 mm2)
4 (21.2 mm2)
4 (21.2 mm2)
Type 75°C
Copper Wire in
Conduit AWG
(IEC) Sizes
40°C (104°F)
Ambient
1 (42.4 mm2)
2 (33.6 mm2)
6 (13.3 mm2)
6 (13.3 mm2)
3 (26.7 mm2)
4 (21.2 mm2)
4 (21.2 mm2)
RATED OUTPUT - IEC 60974-1 (K1834-1)
Duty Cycle-Applications
40%
AC/DC Stick / Balance TIG
Unbalance (70% Penetration # ) AC TIG
60%
AC/DC Stick / Balance TIG
Unbalance (70% Penetration # ) AC TIG
100%
AC/DC Stick / Balance TIG
Unbalance (70% Penetration # ) AC TIG
Volts at Rated Amperes
35.0
24.0
34.0
23.0
32.0
21.0
Amps
375
350
350
325
300
275