supply of rectifier type dc arc welding set 600 amp, supply, installation and commissioning of portable single operator rectifier type dc arc welding set 600 amp capacity suitable for manual arc welding process. model bdcr-600 ( s ) of berco make or equivalent with warranty / guarantee and test certificate. also incorporated with energy sever device. technical specification as given below: 1 ) maximum continuous hand welding current @ 60% duty cycle: 600a ( 2 ) minimum hand welding current @ 60% duty cycle: 120a ( 3 ) protection of rectifier: rc network with mov ( 4 ) open circuit voltage: 70 v ( max ) ( 5 ) operating arc voltage: 25-44 v ( 6 ) type of cooling: forced air cooled ( 7 ) rated input voltage: 380 / 415 / 440 volts ( 8 ) phase-03 ( 9 ) frequency:50hz ( 10 ) class of insulation: [ warranty period: 30 months after the date of delivery ]