Generally, the farther the code letter from A, the higher the inrush current per hp. A replacement motor with a “higher” code may require different upstream electrical equipment, such as motor starters. Specification of Electric Motors . Synchronous motors: synchronous motors are three-phase.
Maximum ambient temperature for which motor is designed.
Over the years an extensive list of descriptive type codes and frame designations for U.
These product designations supplement the basic horsepower, spee phase and voltage information.
The search function below will give you and . Locked-rotor code letter — When AC motors are . Ac Motors : A motor (see motor definition) operating on a-c current that flows in either direction (AC current) there are two general types : induction, and . ABB offers two types of low voltage induction motor series: Process performance and General performance . The main standards for low voltage motors. In North America, the National Electric Manufacturers Association (NEMA) sets motor standards, including.