Sold as 1 UNIT at $23.31 per unit. (1 unit = each.) 1-1/2". 50 amp, 120/240 vac. Non-interchangeable. 10,000 AIR. Visi-Trip indicator. Plug-in. Fits Q.O. panels. Standard overload and short circuit protection in Q.O. load centers. UL listed. C.S.A. approved. Bulk. Manufacturer number: QO250CP. SKU #: 83805 Country of origin: (TBA). Distributed by Square D.