Four realistic commercial and industrial panels. Each includes a downloadable panel schedule PDF, BOM Excel, and load calculation worksheet.
42-circuit 480V main distribution board for a 50,000 sqft warehouse. Mix of LED high-bay lighting (NEC Table 220.12 demand), dock receptacles (NEC 220.42 two-tier), 50hp air compressor (NEC 430.24 largest-motor 125%), and general VFD-driven conveyor motors.
Six-tenant commercial office building with 1200A main switchboard at 208Y/120V. ATS feeds emergency lighting and exit signs. Each tenant sub-panel sized to NEC 220.11 lighting demand and NEC 220.42 receptacle demand. Feeder conductors sized per NEC 215.2.
Light industrial facility with 277/480V distribution. Motor control center with six VFD-driven motors. 277V fluorescent/LED lighting on phase-to-neutral. Three-phase welding receptacles on dedicated circuits. NEC 430.24 applies to the largest motor (75hp). Voltage drop checked per NEC Ch.9.
Full-service restaurant with commercial kitchen. NEC 220.56 demand factors applied to kitchen equipment: fryers, ranges, ovens, and broilers. HVAC exhaust fan motors per NEC 430.24. Separate circuits for walk-in refrigeration and ice machines. Service sized at 200A 120/208V.