' Load Center, Current Rating 100 Amps, Copper Wire Size #4-1 AWG, Aluminum Wire Size #4-1/0 AWG, Flush Cover G0337407, Maximum Number of Single Pole Breakers 27, Number of Spaces 27, Surface Cover G3495536, Ground Bar Kit G3260835, Height 30.00 Inches, Width 14.25 Inches, Depth 3.75 Inches, NEMA 1 Indoor Model, Three Phase, Main Breaker '