B-1
OPERATION
POWER WAVE® C300
B-1
• ELECTRIC SHOCK CAN KILL.
Unless using COLD FEED fea-
ture, when feeding with gun trig-
ger, the electrode and drive
mechanism are always electri-
cally energized and could
remain energized several sec-
onds after the welding ceases.
• Do not touch electrically live part or electrode
with skin or wet clothing.
• Insulate yourself from work and ground.
• Always wear dry insulating gloves.
• Do not operate with covers, panels or guards
removed or open.
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• FUMES AND GASSES can be
dangerous.
• Keep your head out of fumes.
• Use ventilation or exhaust to
remove fumes from breathing
zone.
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• WELDING SPARKS can cause
fire or explosion.
• Keep flammable material away.
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ARC RAYS can burn.
• Wear eye, ear and body protec-
tion.
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SEE ADDITIONAL WARNING INFORMATION
UNDER ARC WELDING SAFETY PRECAUTIONS
AND IN THE FRONT OF THIS OPERATING MAN-
UAL.
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WARNING
SAFETY PRECAUTIONS
READ AND UNDERSTAND ENTIRE SECTION
BEFORE OPERATING MACHINE.
POSITIVE OUTPUT
NEGATIVE OUTPUT
STATUS
PROTECTIVE
GROUND
WARNING OR
CAUTION
GRAPHIC SYMBOLS THAT APPEAR ON
THIS MACHINE OR IN THIS MANUAL
HIGH TEMPERATURE
DANGEROUS
VOLTAGE
POWER-UP SEQUENCE
When the POWER WAVE® C300 is powered it can
take as long as 30 seconds for the machine to be
ready to weld. During this time period the user inter-
face will not be active.
DUTY CYCLE
The POWER WAVE® C300 is rated at 250 amps at
26.5 volts with a 100% duty cycle. It is further rated to
provide 275 amps at 27.8 volts with a 60% duty cycle
and 300 amps at 29 volts with a 40% duty cycle. The
duty cycle is based on a ten-minute period. A 60%
duty cycle represents 6 minutes of welding and 4 min-
utes of idling in a ten-minute period.
