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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
Not protected
0
Not protected
1
Protected against objects greater than 50 mm
1
Protected against dripping water
2
Protected against objects greater than 12 mm
2
Protected against dripping water when tilted up to 15°
3
Protected against objects greater than 2.5 mm
3
Protected against spraying water
4
Protected against objects greater than 1.0 mm
4
Protected against splashing water
5
Dust protected
5
Protected against water jets
6
Dust tight
6
Protected against heavy seas
—
7
Protection against the effects of immersion
—
8
Protection against submersion
General Information
Codes and Standards
Circuit Protection Guidelines
Prices and data subject
to change without notice
2
Standard Drives Buyers Guide
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