Electrical · E-4DJ3S

Electrical One Line Diagram Bus Bar and Feeder Distribution

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An electrical distribution one-line diagram details a 480-volt, 3-phase, 3-wire system powered by a 2000-ampere bus bar. Multiple feeder circuits branch off the bus bar, designated as 1B, 1C, 1D, 2B, 2C, 2D, and 3B, each protected by circuit breakers with specific trip and frame ratings. The breakers include 1200AT/1200AF, 1600AT/1600AF, 800AT/800AF, and 2000AT/2000AF units. Specific breaker designations incorporate normally closed contacts and tagged load connections.

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