The notified draft Mexican Official Standard applies to clean water motor pump assemblies and motor pumps using single-phase squirrel-cage induction motors, with a power rating of 0.149 kW (1/5 HP) to 1.492 kW (2 HP).

Proyecto de Norma Oficial Mexicana PROY-NOM004ENER2024, Eficiencia energética para el conjunto motorbomba y motobombas, para bombeo de agua limpia, en potencias de 0,149 kW (1/5 HP) hasta 1,492 kW (2 HP) Límites, métodos de prueba y etiquetado (Draft Mexican Official Standard PROY-NOM004ENER2024: Energy efficiency for clean water motor pump assemblies and motor pumps with a power rating of 0.149 kW (1/5 HP) to 1.492 kW (2 HP). Limits, test methods and labelling) (27 pages, in Spanish)

·        The notified draft Mexican Official Standard establishes the maximum Pump Energy Index (PEI) value for clean water motor pump assemblies and motor pumps. It also establishes the testing and calculating method for verifying compliance with this index, as well as the information required on labels and the conformity assessment procedure.

·        The notified draft Mexican Official Standard applies to clean water motor pump assemblies and motor pumps using single-phase squirrel-cage induction motors, with a power rating of 0.149 kW (1/5 HP) to 1.492 kW (2 HP), which are imported, manufactured or marketed in Mexico.

·        It does not apply to the following types of pumps:

fire pumps;

self-priming pumps; and

permanent magnet motor pumps.