Longevity MIGWELD 140 - Manual (Page 26)

MigWeld 140 140 AMP MIG Welder
Page 26 of 27
V.Overload Protection
Overload protection for power supply to welding
The MigWeld140 Welding Machine is equipped with a circuit breaker and a thermostat,
which protects the machine from damage if maximum output is exceeded. The circuit breaker
button will extend out when tripped. The circuit breaker must be manually reset. Wait for
several minutes while the welding machine cools down and reset the circuit breaker button.
Thermal Protection
The MigWeld140 has a rated output duty cycle of 20%. If the duty cycle is exceeded, a
thermal protector will shut off the output until the machine cools to a reasonable operating
temperature. This is an automatic function and does not require user intervention. The fan
continues to run during cooling.
Overload Protection to Wire feeder
The MigWeld140 model has two automatic circuits to protect the motor of the wire drive.