NEC Art. 220 · 480V/3Ø · 42 Circuits

Mid-Size Warehouse — 800A Service

800A main distribution board · mixed LED + compressor + dock receptacles

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.

800AService

42Circuits

480V/3ØVoltage

NEC Art. 220Code

< 2 minRuntime

WarehouseNEC 220.42NEC 430.24Motor loads480VLED lighting

Downloads — Email required (free)

Panel Schedule PDF

NEC Art. 220 compliant — branch circuits, feeders, demand summary

Load Calculation Worksheet

Demand by load type: lighting, receptacle, motor, fixed appliance

Cable + Conduit BOM

Per-circuit cable sizes, conduit fill, quantities

One-Line Diagram (simplified)

Single-line diagram with feeder ratings and breaker sizing

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