ANSI/EASA AR100-2020 cover

ANSI/EASA Standard AR100-2020
ANSI/EASA AR100-2020: Recommended Practice for the Repair of Rotating Electrical Apparatus is a must-have guide to the repair of rotating electrical machines. It establishes recommended practices in each step of the rotating electrical apparatus rewinding and rebuilding processes.

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For information about ANSI/EASA AR100 or questions about the work on this standard, contact:

Mike Howell, PE
EASA Technical Support Specialist
+1 314 993 2220
mhowell@easa.com

ANSI Accredited Standards Developer Information

Electrical machine enclosures: Degree of protection (IP) codes

December 2017
Number of views: 15917
Article rating: 4.0

Tom Bishop, P.E.
EASA Senior Technical Support Specialist

The International Electrotechnical Commission (IEC) standard 60529 “Degrees of protection provided by enclosures (IP code)” addresses the degrees of protection for electrical machines (motors and generators). The “IP” acronym means “International Protection,” but is sometimes referred to as “Ingress Protection.” The IP code is commonly displayed on metric machine nameplates, which are manufactured to IEC standards.

The NEMA MG1 Motors and Generators standards have adopted the IEC standards for the IP designations. Although not prevalent on NEMA machine nameplates, the inclusion of the IP marking is becoming more common. The purpose of this article is to describe the IP code designations and provide examples of the IP codes for common electrical machine enclosures.

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ANSI/EASA AR100

More information on this topic can be found in ANSI/EASA AR100

Section 1: General

EASA Technical Manual

More information on this topic can be found in EASA's Technical Manual

Section 1: Machine Identification & Bearing Information
Section 2: AC Machines
Section 3: DC Machines

Related Reference and Training Materials

Principles of Medium & Large AC Motors (NEMA Standards)

Section 1: Motor Nomenclature & Definitions
Section 2: Motor Enclosures
Section 6: Motor Standards

Principles of Medium & Large AC Motors (IEC Standards)

Section 1: Motor Nomenclature & Definitions
Section 2: Motor Enclosures
Section 6: Motor Standards

Fundamentals of DC Motors & Operation Tips

Section 1: Nomenclature & Nameplate Information
Section 7: Frames

Categories: AC motors, AC motor enclosures, DC motors, DC motor enclosures, Design/theory/application

Tags: DC Motor enclosures AC

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The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors
Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.

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EASA Good Practice Guide

Good Practice Guide to Maintain Motor Efficiency
Based on the 2019 and 2003 Rewind Studies of premium efficiency, energy efficient, IE2 (formerly EF1) and IE3 motors

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