Section 3 − Installation; Specifications; Typical Process Connections; Weld Output Terminals And Selecting Cable Sizes - Miller Electric WC-115A Owner's Manual

3-1. Specifications

AC Input Power
1-Phase
115 Volts,
2 Amperes,
50/60 Or 100 Hz

3-2. Typical Process Connections

NOTE
Constant current and/or
constant voltage transformer
and engine-driven DC power
sources. If the power source
does not have a weld output
contactor, the optional
contactor kit should be
ordered.
Weld Power Cable* (Not Included)
10 ft (3 m) Contactor Cord**
10 ft (3 m) 115 VAC Power Cord

3-3. Weld Output Terminals And Selecting Cable Sizes

Weld Output
Terminals
801 487-A
Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere.
SECTION 3 − INSTALLATION
DC Output For
Welding Power
Control
Source Type
Circuit
Constant Current
(CC) Or Constant
Voltage (CV) DC, 30 Volts
With Or Without
Contactor
Use gun Owner's Manual when making connections.
Gas Hose
Control Cord
115 Volt
Control
Weld Power Cable
Total Cable (Copper) Length In Weld Circuit Not Exceeding
100 ft (30 m) Or Less
10 − 60% 60 − 100%
Welding
Duty
Amperes
Cycle
100 4
150 3
200 3
250 2
300 1
Weld Circuit
Overall Dimensions
Rating
100 Volts, 200
Amperes, 100%
Duty Cycle Using
Argon Shielding
Gas
Voltage Sensing Lead For CC Mode
(Factory Supplied − Customer Installed)
*See Section 3-3 for
recommended cable sizes.
**Contactor cord only supplied with
unit not equipped with contactor.
150 ft 200 ft
(45 m) (60 m)
Duty
Cycle
4 4 3
3 2 1
2 1 1/0
1 1/0 2/0
1/0 2/0 3/0
Length: 12-1/4 in
(311 mm)
Width: 9-1/4 in
(235 mm)
Height: 8-5/8 in
(219 mm)
250 ft 300 ft 350 ft
(70 m) (90 m) (105 m)
10 − 100% Duty Cycle
2 1 1/0
1/0 2/0 3/0
2/0 3/0 4/0
3/0 4/0 2-2/0
4/0 2-2/0 2-3/0
OM-1078 Page 9
Weight
20 lb
(9 kg)
Work
400 ft
(120 m)
1/0
3/0
4/0
2-2/0
2-3/0
S-0007-D