Harsh Environments

Accounting for the Elements

Whether it’s extreme heat, blistering winds, or toxic chemicals - electronics are more susceptible to damage when operating in harsh environments.

Engineers must account for environmental factors before the design stage, choosing products with proper qualifications and ratings to protect valuable equipment and personnel.

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About Harsh Environments

Characteristics:
  • Extremely humid, wet and/or dry conditions
  • Exposure to chemicals, particulates oil, or bodily fluids
  • Constant or frequent vibration and jarring
  • Flexing, twisting, or bending of wire & cable
  • Voltage or current spikes and risks of short-cricuits
  • Extreme or rapidly changing temperatures
Recommended Technical Resources:

Understanding IP Ratings

IP (Ingress Protection) ratings consist of the letters IP followed by two digits and an optional letter.

The first digit refers to the level of protection against hazardous parts and the ingress of solid foregin objects. The second digit refers to the level of protection against the ingress of water.

This standard provides engineers with more detailed information regarding the protection status of a product than vague terms like waterproof. Below is a brief table outlining some of the common IP ratings that you'll see across our site. We do offer products with ratings not listed below.

IP RatingWater ProtectionDust Protection
IP65Water at 12.5 liters per minute through 6.3mm nozzle from any directionTotal dust ingress protection
IP66Water at 100 liters per minute through 12.5mm nozzle from any directionTotal dust ingress protection
IP67Submersion into water up to 1 meter deep for amount of time specified by manufacturerTotal dust ingress protection
IP68Permanent submersion beyond 1 meter into water of depth stated by manufacturerTotal dust ingress protection
IP69KWater at 80-100MPa (megapascal) and 14-16 liters per minute from four angles while the device is rotated at 5RPMTotal dust ingress protection

Learn About NEMA Ratings for Enclosures

The National Electrical Manufacturers Association (NEMA) provides a popular standard for protective enclosures. These conditions include ingress of water and foreign objects (e.g. dust or fibers), but go beyond IP code, accounting for corrosive agents and various gases and atmospheres. The table provides a brief description of each level of protection, which NEMA specifies with a NEMA Enclosure Type Number.

Indoor Nonhazardous Locations

This is a brief table outlining the NEMA ratings as related to the use of enclosures in an indoor nonhazardous location.

Provides a Degree of Protection Against the Following Environmental ConditionsEnclosure NEMA Type
1244X566P1212K13
Access to hazardous partsxxxxxxxxxx
Ingress of solid foreign objects (Falling dirt)xxxxxxxxxx
Ingress of water (Dripping and light splashing) xxxxxxxxx
Ingress of solid foreign objects (Circulating dust, lint, fibers, and flyings **)xxxxxxx
Ingress of solid foreign objects (Settling airborne dust, lint, fibers, and flyings **) xxxxxxxx
Ingress of water (Hosedown and splashing water)xxxx
Oil or coolant seepagexxx
Oil or coolant spraying and splashingx
Corrosive agentsxx
Ingress of water (Occasional temporary submersion) xx
Ingress of water (Occasional prolonged submersion) x

Outdoor Nonhazardous Locations

This is a brief table outlining the NEMA ratings as related to the use of enclosures in an outdoor nonhazardous location.

Provides a Degree of Protection Against the Following Environmental ConditionsEnclosure NEMA Type
33X3R3RX3S3SX44X66P
Access to hazardous partsxxxxxxxxxx
Ingress of water (Rain, snow, and sleet **)xxxxxxxxxx
Sleet xx
Ingress of solid foreign objects (Windblown dust, lint, fibers, and flyings) xxxxxxxx
Ingress of water (Hosedown) xxxx
Corrosive agentsxxxxx
Ingress of water (Occasional temporary submersion) xx
Ingress of water (Occasional prolonged submersion) x

Make the Right Choice for Harsh Environments

IP65

IP65 Products

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IP66 Products

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IP67 Products

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IP68 Products

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IP69K Products

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