Installation, A-2 additional output capacity, Physical dimensions – Lincoln Electric IM909 PRECISION TIG 375 User Manual
Page 11: Temperature ranges, Recommended input wire and fuse sizes

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
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
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.
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
220-230/1/50/60
380-400/1/50/60
415/1/50/60
Input
Ampere
Rating
Rating on
Nameplate
119
69
63
Input
Ampere
Rating
118
68
62
Type 75°C
Copper
Ground Wire in
Conduit AWG
(IEC) Sizes
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)
6 (13.3 mm2)
Fuse
(Super Lag)
or Breaker
Size
1
150
110
110
Fuse
(Super Lag)
or Breaker
Size
1
150
110
110
Type 75°C
Copper Wire in
Conduit AWG
(IEC) Sizes
40°C (104°F)
Ambient
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
3 (26.7 mm2)
4 (21.2 mm2)
4 (21.2 mm2)
RATED OUTPUT - IEC 60974-1 (K1834-3)
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