QO Load Centers offer premium features like QO breakers, ground arc fault interrupters and surge arresters. QO load centers are designed for residential and industrial use to protect electrical systems, equipment and people. Systems are single or three phase and have indoor and outdoor versions. QO Load Centers enable the use of a full complement of accessories. Indoor enclosures are designed to be rotated 180 degrees to accommodate top or bottom service entrance feed. This QO OEM plug on mounting base is for 70A 240 VAC 1 phase 2 wire systems. This QO OEM mounting base has a 10 kA breaking capacity. This product is for 2 spaces. This mounting base will accept only QO plug on circuit breakers. The QON mounting base is UL component recognized. Prop 65: WARNING: This product can expose you to chemicals including: Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov - Compatible Products: QO1105237; QO1155237; QO115PL; QO115VH; QO120; QO1201021; QO1205264; QO120HID; QO120PL; QO120VH; QO125; QO130VH; QO135; QO200; QO2000NRB; QO2000NS; QO20303020; QO2100; QO21001021; QO2100VH; QO2110; QO2125; QO2125VH; QO2150; QO215SWN; QO2200; QO2201021; QO220H; QO220SWN; QO220VH; QO225; QO2301021; QO230H; QO230VH; QO235; QO2401021; QO240VH; QO245; QO2501021; QO250VH; QO2601021; QO260VH; QO280; QO3030; QO3100; QO31001021; QO3100VH; QO3155237; QO320; QO3205237; QO325; QO3301021; QO330VH; QO335; QO340; QO3401021; QO340VH; QO345; QO3501021; QO350VH; QO360; QO3601021; QO360VH; QO380; QO390; QOB110; QOB115; QOB115VH; QOB120; QOB120HM; QOB120PL5393; QOB120VH; QOB120VH1021; QOB125; QOB125VH; QOB130; QOB135; QOB140; QOB150; QOB160; QOB2100VH; QOB2125; QOB2125VH; QOB215; QOB2150VH; QOB215VH; QOB220; QOB2201021; QOB2205237; QOB225VH; QOB230; QOB2301021; QOB230VH; QOB235; QOB240; QOB240VH; QOB245; QOB250VH; QOB260; QOB280; QOB290; QOB3100; QOB31001021; QOB3100VH; QOB3110VH; QOB3125VH; QOB315; QOB3150VH; QOB315VH; QOB320; QOB3201021; QOB320VH; QOB325; QOB330; QOB3301021; QOB330VH; QOB335; QOB340; QOB3401021; QOB340VH; QOB345; QOB350; QOB3501021; QOB360; QOB3601021; QOB360VH; QOB3705274; QOB370VH; QOB380; QOB3805274; QOB380VH; QOB390; QOBXD116; QOM125VH; QOM2100MM; QOM2100MVH; QOM2100VH; QOM2125MVH; QOM2125VH; QOM2150MM; QOM2150MVH; QOM2175VH; QOM2200MM; QOM2200MVH; QOM2200VH; QOM2225VH; QOM50VH; QOM60VH; QOT1520; QOT2020; QOU110B; QOU120B; QOU2125; QOU220H; QOU225B; QOU230B; QOU245; QOU280; QOU310; QOU320VH; QOU325; QOU335; QOU390; QOUQ260B; QOUR110; QOUR220; QOUR230; QO115; QO230; QO220; QO250; QO260; QO215; QO130; QO330; QO110; QO270; QO350; QO140; QO150; QO315; QO370; QO210; QO160; QO310