This electrical schematic details the connection between a twelve by twelve by four inch NEMA 1 power supply receiving standby 120V power and a six by six by four inch NEMA 1 junction box serving a typical door for up to thirty-two total doors. A three-quarter-inch conduit connects the power supply to the junction box, and a one-inch conduit exits the junction box for distribution. The power supply installation is provided if required, coordinated with the door hardware schedule and floor plans.
6"X6"X4" NEMA 1 J-BOX 12"X12"X4" NEMA 1 POWER SUPPLY 3/4" C 1" C TYPICAL DOOR (UP TO 32 TOTAL DOORS) PROVIDE IF REQUIRED. SEE DOOR HARDWARE SCHEDULE AND FLOOR PLANS STANDBY / 120V
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