El escenario
Industrial facility requires continuous control power even during utility outages; a 480V distribution panel supplies six motor loads while a standby generator and UPS support critical control circuits.
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01
Utility and generator sources are combined through an automatic transfer switch feeding the main 480V bus
02
A dedicated UPS input breaker feeds a 40 kVA UPS that powers a separate 120V control bus
03
Each motor feeder is protected by an individual breaker sized to the motor rating
Use for industrial single-line diagrams where control power must remain available during generator transfer or utility interruption, and where multiple motor loads are served from a common distribution panel.