Borderline at best more then likely you will trip your circuit breakers over and over. running 2 units pulling 6000 watts on a 30 amp circuit is possible but not a good idea.
6000/7200 = 5/6 = 83.333% which is over code. This assumes an exact 240 volt output many of us run from 217 to 227 as the norm.
I have 3 spots with 220/240
One does 217 to 227 this would never work with 2 units on 1 30 amp circuit.
one does 234 - 237 I would bet against this one not tripping gear out.
one does 237 - 243 this could work.
I have pushed all 3 locations
the 217 to 227 prefers 4800 watts or less on a 30 amp circuit.
the 234-237 can do 5100 watts no issues
the 237-243 can approach 5800 watts in the winter.
there is no way would I try 2 s17+ on 1 30 amp circuit.
I would do 2 s17+ and 1 s9 = 2950 + 1350 = 4300 watts which is no worries
now most of my gear is in clifton which runs in the 217 to 227 volt zone
So I do not try to get to 5000watts on any circuit.
We also have an issue that low volts occurs say 190 volts every 10-14 days for about 10 minutes we think it is a power station issue so pushing circuits is simply not justified for us.
If you have a very steady 240 volts in a very cool space maybe you can do 2 of these units and pull about 5840 watts on a 30 amp circuit. I am sure people will try it and some may do okay.