supply, installation & commissioning of welding machine as per specification given below-1.welding current range- 80a/23v- 750a/44v.2. opening circuit voltage- 90v. 3.mains supply 30 50/60hz- 415v.4.welding current at maximum- 400a. 5. dimension (w x l x h ) in mm- 695 x 675 x 870.6.make- esab, model-rs 400e or similar.