Franklin Electric’s constant pressure controllers use state-of-the-art technology to provide constant water pressure through variable speed control of submersible water well pumps. Applications Residential homes Restaurants Farms Schools Car washes Landscape irrigation systems. Benefits Constant water pressure with a wide range of settings (25 to 80 psi) Single-phase input power FE Connect Smartphone app for advanced settings and monitoring (NEMA 3R only excluding SD2W) User-configurable motor frequency range (NEMA 3R only excluding SD2W) Easy installation Soft-start feature prevents water hammer and increases motor life Works with small pressure tanks or existing larger tanks Advanced filtering to remove radio frequency interference UL and cUL listed Built-in diagnostics and protection Surge Protection Short circuit Underload Overheated controller Undervoltage Broken pipe detection (NEMA 3R only excluding SD2W) Locked pump User-configurable underload off time (NEMA 3R only excluding SD2W) Open circuit MonoDrive Models MonoDrive and MonoDriveXT are designed to convert a conventional ½ hp to 2 hp pump system to a variable speed constant pressure system by simply replacing the 3-wire control box and pressure switch. Single-phase input, 3-wire motor control Plug & play ½ hp to 2 hp performance Easily replaceable fan kit Easy to install UL and cUL listed NEMA 3R and NEMA 4 enclosure options (indoor/outdoor)m1762_subdrive_connect_sell_sheet.pdfM1330-Control-Boxes-03-09.pdf