Custom Metal Enclosures & Cabinets
Ratings
Bebco designs and manufactures a wide range of custom enclosures, control panels and cabinets for a broad range of applications, to satisfy both domestic and international enclosure standards.
The following information and Website links are provided as a guide to the enclosure design standards that Bebco’s Custom Metallic Enclosures Division can meet or exceed.
The Domestic & International Standards
– The National Electrical Manufacturer’s Association –
Design Standard
NEMA 250
NEMA Website Link: www.nema.org
– The International Electrotechnical Commission –
Design Standard
IEC 60529
IEC Website Link: www.iec.ch
DISCLAIMER: Bebco is not recognized or endorsed by either organization referenced above and information is presented for reference purposes only.
NEMA Rating System
NEMA Type 1: (IP 10) Indoor use
Provides limited protection against small
amounts of falling dirt
NEMA Type 3: (IP 54) Outdoor use
Provides limited protection against rain, sleet,
windblown dust and external ice formation
NEMA Type 3R: (IP 14) Outdoor use
Provides limited protection against rain, sleet
and external ice formation
NEMA Type 4: (IP 56) Indoor or outdoor use
Provides protection against windblown dust and rain,
splashing or hose-down water and external ice formation
NEMA Type 4X: (IP 56) Indoor or outdoor use
Provides superior corrosion resistance and protection
(utilizing 316 stainless steel) against windblown dust
and rain, splashing or hose-down water and external
ice formation
NEMA Type 12: (IP 52) Indoor use
Provides protection against circulating dust,
falling dirt and non-corrosive liquids
NEMA Type 13: Indoor use
Provides limited protection against dust, sprayed
water, oil and non-corrosive liquids
IP Ratings in parenthesis are NEMA
conversion recommendations
IEC Rating System
IEC Enclosure Ratings are based on a two digit numbering system as listed below.
The first digit indicates a degree of protection against solid particles, and the second digit indicates a degree of protection against liquids.
IP Number Designations
1st Digit – Solid Particles
0 – No protection
1 – Protection against large foreign bodies
2 – Protection against medium foreign bodies
3 – Protection against small foreign bodies
4 – Protection against granular foreign bodies
5 – Protection from deposit of dust
6 – Protection from access of dust
2nd Digit – Liquids
0 – No protection
1 – Protection against vertical dripping water
2 – Same as 1 above when tilted up to 15 degrees
3 – Protection against sprayed water at 60 degrees
4 – Protection against splashed water
5 – Protection against jetted water
6 – Protection against flooding
7 – Protection in dipped state
8 – Protection in submerged state
Please contact Bebco for more
information regarding IEC Enclosure Ratings
– IMPORTANT NOTE –
The preceding information is provided for reference only, and is not intended
for development or finalization of an enclosure specification.
Contact Bebco or acquire a copy of the referenced NEMA and IEC Standards for the most complete and current information regarding all Enclosure Ratings
