What does NEMA rating stand for?

Classification of NEMA ratings

NEMA 1: This is the lowest protection level and is suitable for indoor dry environments. At this level, the equipment needs to meet certain dust and water requirements, but no special heat dissipation measures are required. For example, some low-power household appliances belong to this level.

NEMA 2: This level is suitable for indoor humid environments, such as kitchens and bathrooms. At this level, the equipment needs to have high dust and water resistance, and also needs to have certain moisture resistance. In addition, the equipment needs to have certain heat dissipation measures to prevent safety hazards caused by overheating.

NEMA 3: This level is suitable for outdoor environments, including areas with and without shelter. At this level, the equipment needs to have high dust, water and moisture resistance, and also needs to have good heat dissipation performance. In addition, the equipment needs to have certain corrosion and UV resistance to ensure safe operation in harsh environments.

NEMA 4: This is the highest protection level and is suitable for extremely harsh environments, such as high temperature, high humidity, high salt spray and other environments. At this level, the equipment needs to have extremely high dust, water, moisture, corrosion and UV resistance, and also needs to have good heat dissipation performance. In addition, the equipment needs to have certain explosion and fire resistance to ensure safe operation in extreme environments.