Different Types of Enclosures According The NEMA 250|Electronicsinfos

Types of Enclosures According to The NEMA 250

There are Different Types of Enclosures according to the NEMA Standard 250 Including

NEMA Standard 250 Types

1. Type 1
2. Type 2
3. Type 3
4. Type 3R
5. Type 3S
6. Type 3X
7. Type 3RX
8. Type 3SX
9. Type 3RX
10. Type 4
11. Type 4X
12. Type 5
13. Type 6
14. Type 6P
15. Type 7
16. Type 8
17. Type 9
18. Type 10

Type 1

Type 1 includes an Indoor that provides a degree of protection to personnel against access to hazardous parts and protection of the equipment inside the enclosure against ingress of solid foreign objects.

Type 2

Type 2 includes Indoor use provides a degree of protection to personnel against access to hazardous parts, ingress of solid foreign objects (falling dirt) and ingress of water (dripping and light splashing).

Type 3

Type 3 includes Indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts, ingress of solid foreign objects (falling dirt and windblown dust and ingress of water (rain, sleet, snow).

Type 3R

Type 3R includes Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts.

Type 3S

Type 3S includes Indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts and for which the external mechanism(s) remain operable when ice is laden.

Type 3X

Type 3X includes Indoor or outdoor use to provide a degree of protection to personnel that provides an additional level of protection against corrosion and that will be undamaged by the external formation of ice on the enclosure.

Type 3RX

Type 3RX includes Indoor or outdoor use to provide a degree of protection to personnel. Type 3RX also provides protection against the enclosure ingress of solid foreign objects. 

Type 3SX

Type 3SX includes Indoor or outdoor use to provide a degree of protection to personnel.

Type 4

Type 4 includes indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts.

Type 4X

Type 4X includes Indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts.

Type 5

Type 5 enclosures are used for indoor purposes. It provides a degree of protection against access hazard parts, ingress of solids objects, settling airborne dust, and ingress of dripping water.  

Type 6

Type 6 Specially designed for Indoor and outdoor applications. It provides protection against to access hazardous parts, ingress of solid objects, ingress of water etc

Type 6P

Type 6p Specially designed for Indoor and outdoor applications. It provides protection against to access hazardous parts, ingress of solid objects, ingress of water, corrosion and external formation of ice.

Type 7

Type 7 is designed to contain an internal explosion without causing an external hazard.

Type 8

Type 8 includes being Designed to prevent combustion through the use of oil-immersed equipment.

Type 9

Type 9 is Designed to prevent the ignition of combustible dust.it is specially designed for indoor purposes.

Type 10

Type 10 is designed to contain an internal explosion without causing an external hazard. Type 10 specially Designed for Mining applications.

Conclusion

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