[. . . ] To reduce fire and shock hazards disconnect power to both circuits before servicing. · To reduce the risk of injury, operate and maintain to meet all applicable codes. [. . . ] · Installation is to be performed by a qualified electrician only. · Read and follow all instructions and labels before and during installation. · Failure to properly install this product will void manufacturer's warranty. · Use protective equipment to avoid injury during installation of this heavy product. · Do not route wiring through top of enclosure. 3/8" TYP. Enclosure is wired three phase when a "-T" is in the catalog number. Total operating amps for each supply circuit is shown on the electrical datamarker located near each switch. Separate internal electrical switching is included for each circuit: · Thermal Magnetic Breaker is standard for 208v, 220v and 240v · Load Break Switch is standard for 277v, 347v and 480v · "-TB" in catalog number indicates Thermal Magnetic Breaker for 277, 347v and 480v. Connect customer supply wires to circuit #1 or circuit #2 switch as appropriate. Connect the male plug of the wiring harness to the female harness plug inside enclosure. [. . . ] Connect the male plug of the wiring harness to the female harness plug inside enclosure. These instructions are not intended to be a comprehensive guide to all Installation issues. [. . . ]