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                News

                Ingress Protection Requirements of Electrical Enclosures

                2025-08-01

                IP Code testing is another name for IEC 60529 ingress protection testing. The main focus of the testing is how well an enclosure blocks liquids and solids. The IP Code consists of two digits together. The degree of protection from solid objects is indicated by the first number. Protection ratings, such as those for dust protection, may be included in this.

                The second figure represents the level of liquid protection. Here is a chart that displays the IP Code rankings.

                IP Rating

                Size of Object Protected Against

                Examples of Objects Protected Against

                IP 0X

                No protection

                None

                IP 1X

                > 50 mm

                Large surface of body, but not deliberate contact (back of hand vs finger)

                IP 2X

                > 12.5 mm

                Smaller objects and fingers

                IP 3X

                > 2.5 mm

                Thick wires or tools

                IP 4X

                > 1 mm

                Screws, nails, wires

                IP 5X

                Dust protected

                Some dust may enter, but cannot interfere with operation

                IP 6X

                Dust tight

                No ingress of dust at all

                The amount of ingress protection is specified in the NEMA 250 test standard. It also discusses the minimal specifications for enclosure design. Determining protection against solids and liquids is part of the electrical enclosure testing process, which pertains to the level of ingress protection.

                Unlike IEC 60529, which provides an IP Code rating, NEMA 205 testing provides an enclosure rating. For national electrical manufacturers, this ranking is significant. It details the certification, testing, and NEMA type. The enclosure ratings and the corresponding protective needs are displayed in the chart below.

                Type

                Solid

                Liquid

                Type 1

                Falling dirt

                No protection

                Type 2

                Falling dirt

                Dripping and light splashing water

                Type 5

                Falling dirt, settling airborne dust, fibers, flyings and lint

                Dripping and light splashing water

                Type 12

                Falling dirt, circulating dust, fibers, flyings and lint

                Dripping and light splashing water; seepage and light splashing of oil and non-corrosive coolants

                Type 13

                Falling dirt, circulating dust, fibers, flyings and lint

                Dripping and light splashing water; seepage, light splashing and spraying of oil and non-corrosive coolants

                Type 3

                Windblown dust and falling dirt

                Water from sleet, snow and windblown rain

                Type 3R

                Falling dirt

                Water from falling rain, sleet and snow

                Type 4

                Windblown dust and falling dirt

                Water directed from a hose or from rain, sleet, snow and splashing water

                Type 4X

                Windblown dust and falling dirt

                Water directed from a hose or from rain, sleet, snow and splashing water; increased corrosion protection

                Type 6

                Falling dirt

                Hose directed water and submersion that is temporary and at a limited depth

                Type 6P

                Falling dirt

                Hose directed water and submersion that is prolonged and at a limited depth

                Note that NEMA 250 Types 1, 2, 5, 12, and 13 are exclusively intended for indoor use. Every other variety is both indoors and outside. For marketing purposes, the NEMA electrical enclosure rating is frequently utilized. For many applications, cases with electrical enclosure certification and that pass the electrical enclosure water test are necessary.

                Comparable to NEMA 250, UL 50 specifies protection levels and design requirements. In essence, it's an IP code for an electrical casing. The levels of protection from liquids and solids for each type of enclosure are listed in the chart below.

                Type

                Solid

                Liquid

                Type 1

                Falling dirt

                No protection

                Type 2

                Falling dirt

                Dripping and light splashing water

                Type 5

                Falling dirt, settling airborne dust, fibers, flyings and lint

                Dripping and light splashing water

                Type 12

                Falling dirt, circulating dust, fibers, flyings and lint

                Dripping and light splashing water; seepage and light splashing of oil and non-corrosive coolants

                Type 13

                Falling dirt, circulating dust, fibers, flyings and lint

                Dripping and light splashing water; seepage, light splashing and spraying of oil and non-corrosive coolants

                Type 3

                Windblown dust and falling dirt

                Water from sleet, snow and windblown rain

                Type 3R

                Falling dirt

                Water from falling rain, sleet and snow

                Type 4

                Windblown dust and falling dirt

                Water directed from a hose or from rain, sleet, snow and splashing water

                Type 4X

                Windblown dust and falling dirt

                Water directed from a hose or from rain, sleet, snow and splashing water; increased corrosion protection

                Type 6

                Falling dirt

                Hose directed water and submersion that is temporary and at a limited depth

                Type 6P

                Falling dirt

                Hose directed water and submersion that is prolonged and at a limited depth

                SHENZHEN BONAD INSTRUMENT CO.,LTD, is a high-tech company in China, BONAD quality system has been strictly certified by ISO9001:2015. As a CIE Membership.Our main products are Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, accessibility test probe and test finger, Glow Wire Test and Needle Flame Test,freezing load test package, soil moisture sensor, all kinds of gauges and so on.

                BONAD have gathered lots of experienced researchers and administrators on this field. BONAD products are manufactured strictly in accordance with various EN, IEC, CE, UL, VDE, VS, JIS, ISO, CEE, BS, FMV, GB and other similar international standards. All products can pass CE certificate and authenticated by the third party lab.

                Please feel free to contact us if you need any support.

                sales Dep:Alice@http://www.miya998.com,

                Cell/WhatsApp:+8613380391156


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