Load Center Number of Spaces 42 Amps 150 A Voltage 120/240V AC Circuit Breaker Type QO Included Enclosure Cover Combination Flush/Surface Cover Main Circuit Breaker or Main Lug Main Circuit Breaker Max No of Tandem Breakers 0 Phase 1 Height 38 in Width 14.25 in For Use With Square D QO Circuit Breakers Bus Material Tin Plated Copper Short Circuit Current Rating 22 kA Enclosure NEMA Rating 1 Recommended Flush Cover Included Recommended Ground Bar Kit Included