The 5700 Series design is based on ease and simplicity. This unit installs in minutes rather than hours and consists of three basic components: inverter, motor and Norton's 1601 closer body. Quiet and dependable, the 5700 meets the requirements of the Americans with Disability Act (A.D.A.) and ANSI/BHMA 156.4. Available push- or pull- side mounting, this unit is perfect for applications that don't require special features but demands reliability.