Welder Electrical Service Guide: Fuse Ratings, Wire Sizes, 200-575V 1/3-Phase

This document is Section 3-13, "Electrical Service Guide," from a welding power source manual (likely a Miller welder such as a Syncrowave/similar unit, given the filename 350P). It provides electrical branch circuit sizing recommendations for connecting the welding power source to 60 Hz single-phase and three-phase supplies at input voltages of 200, 230, 460, and 575 volts. For each voltage and phase configuration, the table lists: input amperes at rated output (ranging from 69 A at 200 V single phase down to 12 A at 575 V three phase), maximum recommended standard fuse ratings for both time-delay fuses (10-80 A) and normal operating fuses (15-100 A), minimum input conductor size in AWG (6-14 AWG), maximum recommended input conductor length in feet and meters (86-229 ft / 26-85 m), and minimum grounding conductor size in AWG (8-14 AWG). A safety warning states that failure to follow the recommendations could create an electric shock or fire hazard, and that the values are for a dedicated branch circuit sized for the rated output and duty cycle of the welding power source. Footnote markers 1-4 are present, but the footnote text itself is not visible on this page.