Welding Gun Duty Cycle And Overheating; Volt-Ampere Curves - MAC TOOLS MW260X Owner's Manual

2-3. Welding Gun Duty Cycle And Overheating

CAUTION
WELDING LONGER THAN RATED DUTY CYCLE can damage gun and void warranty.
Do not weld at rated load longer than shown below.
Using gasless flux cored wire reduces gun duty cycle.
Definition
0
10
Minutes
Duty Cycle is percentage of 10
minutes that gun can weld at
rated load without overheating.

2-4. Volt-Ampere Curves

OM-198 781 Page 10
.023 To .045 in (0.6 To 1.1 mm)
Hard Or Flux Cored Wires
100% Duty Cycle At 200 Amperes
Using CO
2
100% Duty Cycle At 150 Amperes
Using Mixed Gases
Continuous Welding
.023 To .045 in (0.6 To 1.1 mm) Hard Or Flux Cored Wires
60% Duty Cycle At 300 Amperes
Using CO
60% Duty Cycle At 200 Amperes
Using Mixed Gases
6 Minutes Welding
Volt-ampere curves show mini-
mum and maximum voltage and
amperage output capabilities of
unit. Curves of other settings fall
between curves shown.
warn7.1 8/93
2
4 Minutes Resting
SB1.1 8/93
va_curve1 4/95 − SB-192 436