A.O. Smith ECM16CU Motor,Century,208v-230v,Var-Spd,48fr,C-Face Thd,V-GrnFully featured, the V-Green 165 incorporates durable TEFC construction with ECM technology to deliver premium energy efficiency from 40 percent to 80 percent versus a standard single speed motor. Installation on most pumps regardless of manufacturer is as simple as replacing a standard single speed motor, with no additional wiring or plumbing required thanks to the V-Green motor’s integrated user interface. Equipped with digital inputs, the V-Green 165 motor is even compatible with third party pool automation systems. Features: Integrated User Interface Timer Mode Manual Mode Freeze Protection Noise Reducing Design Factory Default Settings Reset TEFC Single Phase Schedule Advance Full Variable Speed (600-3450 RPM) ECM Design Program Memory Back-Up 303 Stainless Steel Shaft Class F Insulation 50° C Ambient UV and Rain-Proof Enclosure Keypad Lockout Digital Inputs for Third Party Automation