What is the difference between NEMA 2 and IP rating ?

NEMA 2 and IP rating are both used to classify electrical enclosures based on their ability to protect against environmental factors. However, there are important differences between the two systems.

NEMA 2 rating provides protection against dripping water. The standard specifies the level of water that can come into contact with the electrical equipment, such as the number of millimeters, and the duration of exposure. In general, NEMA 2 rating is used for electrical equipment that is designed to be installed in outdoor or wet environments.

On the other hand, IP rating is used to protect electrical equipment from the effects of electrical storms, lightning, and other similar environmental factors. IP rating is divided into four categories, which are IP 0, IP 1, IP 2, and IP Each category provides a certain level of protection against electrical storms and lightning.

The primary difference between NEMA 2 and IP rating is the level of protection they provide. NEMA 2 rating is specifically designed for use in outdoor or wet environments, while IP rating is designed for use in electrical storms and lightning.

How do NEMA 2 and IP rating determine the level of protection? NEMA 2 and IP rating determine the level of protection by specifying the amount of water or electrical storms that can come into contact with the electrical equipment.

For NEMA 2 rating, the standard specifies the number of millimeters of water that can come into contact with the electrical equipment. For example, NEMA 2 4X rating means that the electrical equipment can withstand the contact of up to 4 millimeters of water for a duration of 30 seconds.

IP rating, on the other hand, is designed to protect electrical equipment from the effects of electrical storms and lightning. IP rating is divided into four categories, which provide a certain level of protection against electrical storms and lightning. For example, IP 0 rating provides the highest level of protection against electrical storms and lightning.

In conclusion, NEMA 2 and IP rating are both used to classify electrical enclosures based on their ability to protect against environmental factors. However, the level of protection provided by each system is distinct and should be carefully considered when selecting an appropriate enclosure for electrical equipment.