Marketing InformationFranklin Electric 1 ph controls are designed and optimized specifically for Franklin Electric motors. Controls are an integral part of a submersible motor power system. Rigorous component testing ensures the most robust products in the industry. Standard and deluxe boxes are for 1 to 15 hp 1 ph water systems that use standard/heavy-duty pressure switches, level switches or other pilot devices. Deluxe boxes contain magnetic line contactors carefully matched to the motor rating, eliminating the need for external line contactors. The 15 hp XL deluxe box has a larger enclosure that provides the space you need for heavy-duty wire and plenty of room for add-ons.