• Automatic reset thermal protector prevents overheating. • Patented MAXGuard® insulation system offers superior protection for use with a variable frequency drive. • Permanently lubricated, double-sealed bearings extend the lifetime of the motor. • Ambient temperature up to 70°C allows for consistent operation in a range of environments and applications. • Vertical/horizontal mounting for proper placement of the fan within airflow. • Model 048C17D2041