MAC TOOLS MW150K - SECTION 1 - SPECIFICATIONS; 1-1. Volt-Ampere Curve And Duty Cycle Chart

OM-154 500 Page 1
SECTION 1 – SPECIFICATIONS
Table 1-1. Welding Power Source
Specification Description
Type Of Output Direct Current/Constant Voltage (DC/CV)
Rated Weld Output 120 Amperes, 21 Volts DC, 30% Duty Cycle
Type Of Input Power Single-Phase; 60 Hz; At 230 Volts AC
Input Amperes At Rated Output 20A
KVA/KW Used At Rated Output 4.7 kVA/3.9 kW
Max. Open-Circuit Voltage 32 Volts DC
Control Circuit Voltage At Gun 24 Volts DC
Welding Processes Gas Metal Arc (GMAW) And Flux Cored Arc Welding (FCAW)
Speed Range 47 To 690 ipm (1.2 To 17.5 mpm)
Wire Diameter Range .023 To .035 in (0.58 To 0.89 mm)
Overall Dimensions Length: 27 in (686 mm); Width: 12 in (305 mm); Height: 22-1/2 in (571 mm)
Weight Net: 117 lb (53 kg); Ship: 120 lb (54 kg)
Welding Gun
Rated Output (Air Cooled) 160 Amperes At 60% Duty Cycle Using CO
2
Shielding Gas
Cable Length 10 ft (3 m)
1-1. Volt-Ampere Curve And Duty Cycle Chart
CAUTION
USING GUN BEYOND DUTY CYCLE RATING can damage gun.
• Do not use gun beyond rated amperage when using CO
2
shielding gas.
• Use gun at 30% duty cycle when using mixed shielding gas.
wfwarn8.1 10/91
ssb1.1 10/91 – SB-124 625 / sb1.3 10/91 – SB-124 624
The volt-ampere curves show the
minimum and maximum voltage
and amperage output capabilities of
the welding power source. Curves
of other settings fall between the
curves shown.
Duty cycle is how long the unit can
operate within a ten minute period
without causing overheating or
damage.
This unit is rated at 30% duty cycle
allowing welding 3 minutes out of
every 10 minutes.
This gun is rated at 60% duty cycle
when using CO
2
shielding gas and
30% when using mixed shielding
gas.
Figure 1-1. Volt-Ampere Curve And Duty Cycle Chart