Operation - Weldtronic TM250C Operating Manual

3.0 Operation

Duty cycle and overheating
Duty Cycle is percentage of 10 minutes that unit can weld at rated load without
overheating. If unit overheats, thermostat(s) opens, output stops, and cooling fan
runs. Wait fifteen minutes for unit to cool. Reduce amperage or duty cycle before
welding.
▲ Welding machine must be used according to technical data from this manual. If the
machine is overloaded, failures may occur that are not be covered by warranty.
Overload control
Thermal protection is built in the machine's main transformer and Inverter Bridge. If
the machine overheats, thermal fuse will prevent further use and control lamp on
the front panel will light up. In this case the welder must wait until the machine's
temperature drops to normal. Note the machine must be left switched on for the fan
to keep running.
TitanMig AU 250C Manual_ Issue A 0415
60% Duty Cycle at 180A.
Overheating
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