This Square D QO Series Indoor Main Lug Load Center (Model QO816L100DS) is rated at 100 amps with 8 spaces for circuit breakers, suitable for use as a sub-panel in residential or light commercial applications. Dimensions: 8.88"W x 3.8"D x 12.57"H. Designed for indoor use, this load center accepts QO plug-on circuit breakers and includes a convertible cover. Factory-built for reliable performance and easy installation. In like-new condition in original box.