The Square D QO 200 Amp Main Breaker 30-Space 30-Circuit Convertible Indoor Plug-on Neutral Load Center for Plug-on Neutral breakers is UL Listed for residential, commercial and industrial power distribution, this load center is built with a shielded, copper bus bar that is plated ...The Square D QO 200 Amp Main Breaker 30-Space 30-Circuit Convertible Indoor Plug-on Neutral Load Center for Plug-on Neutral breakers is UL Listed for residential, commercial and industrial power distribution, this load center is built with a shielded, copper bus bar that is plated for reliability. QO load centers are tested and Listed only for QO circuit breakers. QO load centers are the "World's Finest" designed with industry leading features for flexible application.
QO load centers include features engineered for fast installation and wire savings.