PENTAIR HOFFMAN® 1
INTRODUCTION
Purpose
• Understand electrical enclosure materials
Objectives
• Learn about available electrical enclosure construction materials
• Understand the factors used to select the proper enclosure material
• Understand the tradeoffs between various materials & their performance impacts
Learning Time
• 15 minutes
PENTAIR HOFFMAN®
PROTECT FROM THE ELEMENTS
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Industrial automation equipment can be used in almost any environment imaginable. Enclosures must protect these items from harmful elements to extend their life and prevent expensive operations downtime.
PENTAIR HOFFMAN®
INDUSTRIAL ENCLOSURE MATERIAL TYPES
Different materials affect enclosure performance
MATERIAL RATINGS INDOOR/ OUTDOOR TYPICAL APPLICATIONS
METALS
MILD STEEL TYPES 1, 12, 3R, 4IP20/30/54/55
IndoorOutdoor non-corrosive Industrial & commercial applications
304 STAINLESS STEEL
TYPE 4XIP66/69K Indoor/Outdoor Food & Beverage
316L STAINLESS STEEL
TYPE 4XIP66/69K Indoor/Outdoor Oil & gas, especially offshore oil platforms
ALUMINUM TYPE 4XIP66 Outdoor Telecommunications
NON-METALLICS
POLY-CARBONATE
TYPE 4XIP66 Indoor/Outdoor Electronics & instrumentation
ABS NEMA 4X (NON-UL) IP66 Indoor/Outdoor Electronics & instrumentation
POLYESTER TYPE 4XIP66 Outdoor Water treatment facilities
FIBERGLASS TYPE 4XIP66 Outdoor Oil & gas
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PENTAIR HOFFMAN®
FACTORS IN DETERMINING ENCLOSURE MATERIALS
• Environmental considerations• Chemical resistance• Heat absorption & dissipation• Flexibility & ability to modify• Impact resistance & material strength• Weight considerations• Aesthetics• Purchase price
Many factors to consider4
PENTAIR HOFFMAN®
ENVIRONMENTAL CONSIDERATIONS
Environmental ratings a primary factor in material selection
TYPE 1 TYPE 12 TYPE 3R TYPE 4 TYPE 4X
IP20/IP30 IP54/55 IP66 IP69K
MILD STEEL
MILD STEEL MODULAR
STAINLESS STEEL
NON-METALLIC
ALUMINUM
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PENTAIR HOFFMAN®
Hoffman has tested these materials extensively
CHEMICAL RESISTANCESOLVENTS ALKALIS ACIDS
RECOMMENDED
304 STAINLESS STEEL316 STAINLESS STEEL
FIBERGLASSALUMINUMPOLYESTER
304 STAINLESS STEELABS
POLYESTER
304 STAINLESS STEEL316 STAINLESS STEEL
ABSPOLYESTER
POLYCARBONATE
SATISFACTORYMILD STEEL (PAINTED)
POLYCARBONATEABS
316 STAINLESS STEELPOLYCARBONATE
FIBERGLASSFIBERGLASS
LIMITED USE MILD STEEL (PAINTED)ALUMINUM
MILD STEEL (PAINTED)ALUMINUM
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Click here to access the Chemical Resistance charthttp://www.hoffmanonline.com/stream_document.aspx?rRID=139153&pRID=139152
PENTAIR HOFFMAN®
HEAT ABSORPTION & DISSIPATION
Louvers, solar shields or active cooling equipment can be added
GOOD (LOW) POOR (HIGH)
HEAT ABSORPTION FROM ENVIRONMENT
NON-METALLICS ALUMINUM
GOOD (HIGH) POOR (LOW)
HEAT DISSIPATION FROM ENCLOSED EQUIPMENT
NON-METALLICSALUMINUM
MILD STEELSTAINLESS STEEL
MILD STEELSTAINLESS STEEL
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PENTAIR HOFFMAN®
SIZING FLEXIBILITY & ABILITY TO MODIFY
Hoffman can provide modified features from the factory
EASY DIFFICULT
SIZE ADJUSTMENTS
MILD STEELSTAINLESS STEEL
FIBERGLASSPOLYCARBONATE
ABS
EASY DIFFICULT
ABILITY TO MODIFY (HOLES & CUTOUTS)
MILD STEEL FIBERGLASSPOLYCARBONATEABS
STAINLESS STEEL
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PENTAIR HOFFMAN®
IMPACT RESISTANCE & MATERIAL STRENGTH
Resistance to damage vs. strength to support components
HIGH LOW
IMPACT RESISTANCE
ALUMINUMPOLYESTERPOLYCARBONATE FIBERGLASS
ABS STAINLESS STEEL
MILD STEEL
HIGH LOW
MATERIAL STRENGTH
ALUMINUM POLYESTERPOLYCARBONATEFIBERGLASS
ABSSTAINLESS STEELMILD STEEL
PENTAIR HOFFMAN®
WEIGHT CONSIDERATIONS
RELATIVE WEIGHT FOR GIVEN SIZE ENCLOSURE (EMPTY)
Must take into account weight of enclosed equipment10
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AESTHETICS
Hoffman can provide almost any color imaginable11
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PURCHASE PRICE
Price needs to align with customer requirements
AVERAGE PURCHASE PRICE
HIGHEST LOWEST
ABSALUMINUMFIBERGLASS
POLYESTERPOLYCARBONATE
316 STAINLESS304 STAINLESS
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MILD STEEL
PENTAIR HOFFMAN®
INDUSTRIAL ENCLOSURE MATERIAL TYPES
Different materials affect enclosure performance
MATERIAL RATINGS INDOOR/ OUTDOOR TYPICAL APPLICATIONS
METALS
MILD STEEL TYPES 1, 12, 3R, 4IP20/30/54/55
IndoorOutdoor non-corrosive Industrial & commercial applications
304 STAINLESS STEEL
TYPE 4XIP66/69K Indoor/Outdoor Food & Beverage
316L STAINLESS STEEL
TYPE 4XIP66/69K Indoor/Outdoor Oil & gas, especially offshore oil platforms
ALUMINUM TYPE 4XIP66 Outdoor Telecommunications
NON-METALLICS
POLY-CARBONATE
TYPE 4XIP66 Indoor/Outdoor Electronics & instrumentation
ABS NEMA 4X (NON-UL) IP66 Indoor/Outdoor Electronics & instrumentation
POLYESTER TYPE 4XIP66 Outdoor Water treatment facilities
FIBERGLASS TYPE 4XIP66 Outdoor Oil & gas
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PENTAIR HOFFMAN®
SUMMARY
THINGS AN APPLICATION SAVVY ENGINEER NEEDS TO KNOW
1) Different industrial automation enclosure materials
2) Different factors to help determine the enclosure material
3) Which performance characteristics are important to the customer
4) How different enclosure materials compare in different measures
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Selecting the right material is key to meeting customer needs
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