Electrical · E-J3J5D

Electrical One-Line Diagram for Motor Control Center

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An electrical distribution schematic shows a main bus rated for 2000 amperes, 480 volts, 3-phase, 3-wire, 60 hertz, with a 65kAIC fault current rating. Individual circuits tap off the main bus through protective devices, routing power to connected loads and motor starters. Conductor and conduit schedules specify sizes such as three number twelve conductors with a ground in three-quarter-inch conduit, and one-and-a-half-inch conduits for specific motor control feeds. Junction boxes and local control stations are incorporated into the branch circuit runs.

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