68
CMT 4000 Ad-
vanced power 
source
(8) Second (-) - Current socket with bayonet latch (optional) for:
- connecting the interconnecting hosepack in MIG/MAG welding for polarity re-
versal (e.g. for innershield and flux core wire welding)
- specially for automated and robot applications where the interconnecting 
hosepack and grounding (earthing) cable are to be connected to one side of 
the power source (e.g. in a switch cabinet)
Second (+) - Current socket with bayonet latch (optional)
for connecting a second current cable
Blanking cover
If the second (-) current socket with bayonet latch or second (+) current socket 
with bayonet latch options are not present on the power source.
(9) (+) - Current socket with bayonet latch for:
- connecting the current cable from the interconnecting hosepack during MIG/
MAG welding
- connecting the grounding (earthing) cable during TIG welding
- connecting the electrode cable or grounding (earthing) cable during MMA 
welding (depending on the type of electrode used)
No. Function
Front view Rear view
No. Function
(1) Grounding (earthing) cable connection
for:
- connecting the grounding (earthing) cable in MIG/MAG welding, CMT weld-
ing and CMT Advanced welding
- connecting the electrode cable or grounding (earthing) cable during MMA 
welding (depending on the type of electrode used)
(2) Mains switch
for switching the power source on and off
(3) Current socket with bayonet latch
 for:
- connecting the current cable of the interconnecting hosepack in MIG/MAG 
welding, CMT welding and CMT Advanced welding
- connecting the electrode cable or grounding (earthing) cable during MMA 
welding (depending on the type of electrode used)