TRW / Nelson Series 5000 Model 201 stud welder 3/4″ Max capacity wired for 208/230/460 Serial #: SMH9201 2 Guns: Standard duty, up to ½” stud, 788 SD Heavy Duty, up to ¾” stud, 788 HD 2 25ft weld cables 2 ground wires and clamps Ceramic ferrules included Solid-state transformer rectifier Current output regulated within 6% of the dial setting through 1600 amps Can be adapted for use w/ manual or automatic feed production equipment Weld timer is calibrated and adjustable between .05 and 1.2 seconds Current control is adjustable between 150 and 1600 amps. Actual weld time/weld current are displayed on L.E.D. display panel Display panel to determine optimum weld settings Readings from the display serve as a quality assurance record during Features enable the welding of studs between 12 ga. and ¾” in diameter with preciseness and repeatability Solid state control 12 ga. through ¾ “ diameter capabilities Automatically regulated weld current Ease of maintenance with plug-in circuit boards