Load Center Number of Spaces 24 Amps 100 A Voltage 120/240V AC Circuit Breaker Type QO Included Enclosure Cover Order Separately Main Circuit Breaker or Main Lug Convertible Main Circuit Breaker Max No of Tandem Breakers 0 Phase 1 Series QO Height 20.91 in Width 14.25 in Depth 4 1/4 in For Use With Square D QO Circuit Breakers Bus Material Tin Plated Copper Short Circuit Current Rating 22kA Enclosure NEMA Rating 1 Recommended Flush Cover 1D433