INTRODUCTION PENTAIR HOFFMAN 1

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1 INTRODUCTION Purpose Understand electrical enclosure standards & ratings Objectives Learn how to identify potential enclosure use environments Understand the different rating & certification systems Learning Time 15 minutes 1

2 PROTECT FROM THE ELEMENTS Industrial automation equipment can be used in almost any environment imaginable. Enclosures must protect critical components from harmful elements to extend their life and prevent expensive operations downtime. 2

3 UNDERSTANDING ENCLOSURE ENVIRONMENTS 1. UNDERSTAND THE ENVIRONMENT IN WHICH ENCLOSURES ARE TO BE USED Identify indoor or outdoor Identify potential contaminants 2. SELECT THE RATING BASED ON LOCATION AND USE ENVIRONMENT Select the Type or IP rating necessary to provide the protection required in the environment 3. SELECT THE ENCLOSURE AND MATERIAL WITH THE PROPER RATINGS Select the best solution platform that is ratings compliant Understand the use environment, select the right enclosure 3

4 INDUSTRIAL ENCLOSURE ENVIRONMENTS WHAT TO ASK WHEN CLASSIFYING AN INDUSTRIAL ENCLOSURE ENVIRONMENT INDOOR OR OUTDOOR DUST, DIRT OR SOLIDS WATER, OIL OR LIQUIDS FALLING OR FORCED Is the enclosure intended to be located indoors or outdoors? Does the enclosure need to protect against dust, dirt or other solid contaminants? Does the enclosure need to protect against water, oil or other liquids? Is the solid or liquid contaminant falling or being forced into the enclosure? Understand environment to select the right enclosure 4

5 INDUSTRY STANDARDS ORGANIZATIONS NEMA NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION UL UNDERWRITERS LABORATORIES INC. CSA CANADIAN STANDARDS ASSOCIATION IEC INTERNATIONAL ELECTROTECHNICAL COMMISSION NEMA Standards Publication 250 Enclosures for Electrical Equipment UL 50 Enclosures for Electrical Equipment UL 508A Industrial Control Panels CSA Standard C22.2 IEC Classification of Degrees of Protection Provided by Enclosures Commonly recognized industry standards for protection ratings 5

6 INDUSTRY STANDARDS COMPARISON NEMA - NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION UL UNDERWRITERS LABORATORIES INC. CSA CANADIAN STANDARDS ASSOCIATION IEC INTERNATIONAL ELECTROTECHNICAL COMMISSION Manufacturer self-declared Specifies construction and performance requirements Testing in certified laboratory Inspections to ensure compliance Specifies construction and performance requirements Testing in certified laboratory Inspections to ensure compliance Specifies construction and performance requirements Manufacturer self-declared Significant differences between industry standards 6

7 NEMA, UL, & CSA RATINGS NORTH AMERICAN TYPE RATINGS SIMILAR ACROSS NEMA, UL AND CSA TYPE RATING INDOOR/ OUTDOOR PROTECTION FROM TYPICAL APPLICATIONS TYPE 1 Indoor Incidental personal contact Dust and falling dirt TYPE 12 Indoor Incidental personal contact Dust and falling dirt Dripping non-corrosive liquid TYPE 3R Outdoor Incidental personal contact Rain, snow and sleet Climate controlled indoor shelters Low contamination electrical rooms Offices and warehouses Indoor security and fire applications Light industrial facilities Wireless telecommunications Outdoor utilities TYPE 4 Indoor/Outdoor Incidental personal contact Dust and falling dirt Windblown dust and fibers Hosedown / splashed water TYPE 4X Indoor/Outdoor Incidental personal contact Dust and falling dirt Windblown dust and fibers Hosedown / splashed water Corrosive agents Cement plants Outdoor plants Rubber tire manufacturing Industrial plants Marine applications Wastewater treatment facilities Food and beverage processing plants Pharmaceuticals and cleanrooms Petroleum and chemical processing Identify enclosure type rating by evaluating use environment 7

8 IEC/IP RATING SYSTEM INGRESS PROTECTION RATING COMMONLY USED WORLDWIDE OUTSIDE NORTH AMERICA I P 6 6 Protection against Liquids 0-8 Protection against Solid Objects 0-6 IEC/IP ratings cannot be directly compared to NEMA/UL/CSA 8

9 IEC/IP RATING SYSTEM IP RATING PROTECTION FROM SOLIDS PROTECTION FROM LIQUIDS TYPICAL APPLICATIONS IP20/IP30 Objects 12mm/ 2mm in diameter No protection Climate controlled indoor shelters Low contamination electrical rooms Offices and warehouses IP54/IP55 Dust (limited ingress) Water spray Low pressure jets Indoor security and fire applications Light industrial facilities IP66 Dust (no ingress) Strong water jets Petroleum and chemical processing Wastewater treatment facilities Pharmaceuticals and cleanrooms IP69K Dust (no ingress) High temperature High pressure water jets Food and beverage processing Identify enclosure IP rating by evaluating use environment 9

10 CHOOSING INDUSTRIAL ENCLOSURE MATERIALS TYPE 1 TYPE 12 TYPE 3R TYPE 4 TYPE 4X MILD STEEL MILD STEEL MODULAR STAINLESS STEEL ALUMINUM NON-METALLIC IP20/IP30 IP54/55 IP66 IP69K Environmental ratings a primary factor in material selection 10

11 HOFFMAN TESTING & CERTIFICATION CAPABILITIES COMPLETE IN-HOUSE, GLOBAL TESTING CAPABILITY ENSURES FULL COMPLIANCE WITH ALL INDUSTRY STANDARDS Hoffman has an onsite UL & CSA Certified Laboratory 11

12 SUMMARY THINGS A DESIGN ENGINEER NEEDS TO KNOW 1) How to classify an industrial automation enclosure use environment 2) Different standards for industrial automation enclosures 3) NEMA or UL Type ratings and their meaning 4) IP ratings and their meaning 5) Where typical Type or IP ratings are used 6) How to select an enclosure material to meet the rating required 7) Hoffman s extensive testing and certification capabilities Understand the environment, select the right enclosure 12