[mactec54]

Thanks for the feedback. That gives me another idea then that will save getting another contactor for steppers.
T1 Servo main power + 220vac
T2 Stepper drivers psu + 220vac
T3 Control stop circuit (low side) 24vdc

If your 24v DC is powering the Brain of the machine you don't cut power to that, High voltage AC and 24vDC switching on the same contactor is not a good idea, some contactors have Auxiliary Contacts on the side that could be used for switching the 24v DC