Square D QO 100A 6-Space 12-Circuit Indoor Main Lug Load Center SuperSlide The blades are heat treated

The blades are heat treated for long life

Mounts anywhere

Size in description is rough opening size

turning button locks both knobs

Rough opening: Width is twice door plus 1"

Square D QO 100A 6-Space 12-Circuit Indoor Main Lug Load Center SuperSlide The blades are heat treatedType QO main lug load center, main lug only, single phase, 3 wire. Rugged thermoplastic interior and an aluminum bus bar, 3 ground bar locations. Cover included. UL (Underwriter's Laboratories) listed for residential, commercial, and industrial power distribution. Tested and listed only for QO circuit breakers. Engineered for fast installation and wire savings. For outdoor use.