Many retailers are now retrofitting inverters to their existing air conditioning and refrigeration equipment to reduce the motors’ energy consumption. They are discovering, however, that exist- ing OEM motors cannot withstand the strain that the inverter places on the motors, resulting in premature failures. The JuggerNaut design is the first in the industry to hold up to the rigorous Class F insulation system, the JuggerNaut achieves superior dielectric strength for long thermal life. While most commercial condenser fan replacement motors have Class B insulation systems The use of non-conductive bearing grease shields the bearings from arcing damage caused by inverter usage. These energy-efficient, three phase motors are capable of reversible rotation with A. O. Smith’s own Voltage Change Module (VCM). Changing between 230 and 460 volt con- rigid base to add flexibility in mounting options.