Data Sheet for Product

Technical Bulletin Enclosure Ratings and Their Applications
Document Number 155-756
August 29, 2018
Page 2 Siemens Industry, Inc.
IP Rating vs.
UL Type vs.
NEMA Type
Enclosures
(Continued)
UL Type
Description
Type 1
• Indoor use
• Protected against personal contact with enclosed equipment
• Limited protection against falling dirt
• Generally considered equivalent to IP21
Type 2
• Indoor use
• Protection against personal contact with enclosed equipment
• Limited protection against falling water and dirt
Type 3
• Outdoor
• Protection against windblown dust
• Protection against windblown rain
• Protection against the formation of ice
Type 3R
• Outdoor
• Protection against falling rain
• Protection against the formation of ice
Type 4
• Indoor or outdoor
• Protection against falling rain, splashing water and hose down
• Protection against the formation of ice
Type 4X
• Indoor or outdoor
• Protection against falling rain, splashing water and hose down
• Protection against the formation of ice
• Resists corrosion
Type 6
• Outdoor or outdoor
• Protection against temporary submersion to a limited depth
• Protection against the formation of ice
Type 12
• Indoor
• Protected against dust and dripping water
• Protected against non-corrosive condensation
• Generally considered equivalent to IP54
Type 13
• Indoor
• Protected against dust
• Protected against non-corrosive condensation
• Protected against spraying water and oil
NOTE: Highlighted UL Types are available from Siemens Industry, Inc as part of
the VFD product offering. For Type 2 applications, use Type 3R
enclosures.