Load Center, Number of Spaces 6, Amps 100 A, Voltage 120/240V AC, Circuit Breaker Type QO, Included Enclosure Cover Surface Cover, Main Circuit Breaker or Main Lug Main Lug, Max. No. of Tandem Breakers 6, Phase 1, Series QO, Height 12.56 in, Width 8.91 in, Depth 3 3/4 in, For Use With Square D QO Circuit Breakers, Bus Material Tin Plated Aluminum, Short Circuit Current Rating 10kA, Enclosure NEMA Rating 1, Cover Attachment Style Screw On, Cover Closure Method Lift-Off