Standard_Drives_Guide

General Information Codes and Standards Circuit Protection Guidelines

For some products, incoming line fuses are required to meet the basic UL listing requirements. Consult AF-6 Series individual drive Design Guides for fuse recommendations. The NEC defines several types of control circuits and the overcurrent protection required for each type. Type Enclosures: IP00, IP20, IP21, IP54, IP55 and IP66 NEMA 1: Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment and to provide a degree of protection against falling dirt. NEMA 4: Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment; to provide a degree of protection against falling dirt, rain, sleet, snow, wind-blown dust, splashing water, hose-directed water, and corrosion; and that will be undamaged by external formation of ice on the enclosure. NEMA 12: Enclosures constructed (without knockouts) for indoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment; to provide a degree of protection against falling dirt; against circulating dust, lint, fibers, and flyings; and against dripping and light splashing of liquids.

IEC 60529 - Ingress Protection (IP) Codes First Digit Protection Against Foreign Objects

Second Digit

Protection Against Moisture

0 1 2 3 4 5 6

Not protected

0 1 2 3 4 5 6 7 8

Not protected

Protected against objects greater than 50 mm Protected against objects greater than 12 mm Protected against objects greater than 2.5 mm Protected against objects greater than 1.0 mm

Protected against dripping water

Protected against dripping water when tilted up to 15°

Protected against spraying water Protected against splashing water Protected against water jets Protected against heavy seas

Dust protected

Dust tight

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Protection against the effects of immersion

Protection against submersion

Standard Drives Buyers Guide

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