MK Products CobraTig 150 XM - Manual (Page 11)

CobraTig 150 Owner's Manual P/N 091-0541 - Page 11
The order numbers for the twist-lock type are: P/N 153-0755 Electrode (male
connector to exchange for the black connector) and P/N 153-0813 Ground
(female connector to exchange for the green connector).
For MicroTig welding operations, the MicroTig Accessory Kit (P/N 005-0670)
is also available. This contains all the necessary items needed when using
the CobraTig®150 XM unit in the WELD MANUAL mode.
Precision MicroTig Technology is a standard feature of the CobraTig®150
XM. The ideal precision manual welder produces reliable, smooth arc starts
at 0.5 amps and is perfect for welding precision thin wall exotic materials
such as titanium and stainless steel or fine wire sizes.
Section 4 Connections
Input Power
The CobraTig® 150 XM can operate on any of four different input power val-
ues: 100VAC, 120VAC, 208/230VAC Single Phase and, 208/230VAC Three
Phase. Attached to the unit is a 12ft power cable that comes wired from
the factory ready for 120VAC. Even though the installed plug is only three
prongs, there are four wires in the cable, ready for three phase power.
DANGER
DISCONNECT ALL POWER TO THE UNIT PRIOR TO CHANGING THE POWER
TAPS. FAILURE TO DO THIS WILL RESULT IN SERIOUS BODILY HARM AND
EXTENSIVE EQUIPMENT DAMAGE.
To change the input power type, three changes have to be made to the Co-
braTig® 150 XM unit: first change the voltage jumper, then the voltage selec-
tor cable and the plug on the end of the cable. You will need a 1/4” nutdriver
wrench and a #2 Phillips head screwdriver.
Using the nutdriver, remove all the 1/4” hex head screws from the cover of
the unit, then lift the cover off. Locate TB1 on the lower-right-rear side of the
unit, from the front. Using the Phillips head screwdriver to change the taps,
follow the directions below:
Configure Voltage Selector Jumper at TB1 terminals 1-3, for the input
voltage, 100V/120V or 208V/230V. Remove and flip over to change (see
Jumper Configuration image).