Q - Does this have a dual gas port?
A - Yes.
Q - What consumables kits does Miller have for this?
A - The Miller Acculock S .035 kit (#1880278) and the Acculock S .045 Kit (#1880279) will both work with the Miller MDX 250 MIG gun.
Q - Can you TIG weld aluminum with the Miller Multimatic 255?
A - Yes. However, the Multimatic 255 is ideal for aluminum MIG welding.
Q - What max thickness is it rated for?
A - The Millermatic 255 is able to weld metals up to ½” thick with an output of 230 Amps and 25.5 V at 60% duty cycle.
Q - Can I run a Miller Multimatic 255 with my 50 Amp breaker?
A - Yes.