IEEE 841-1994
Cooled (TEFC) Squirrel Cage Induction Motors - Up to and Including 500 hp
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About This Item
841-1994 is a technical standard for cooled (TEFC) squirrel cage induction motors up to and including 500 hp, with a focus on power, energy, and industrial applications. It is relevant where enclosed motor construction, cooling performance, and rated output need to be clearly defined for procurement, design, or interchange. As a superseded standard, it remains useful for understanding legacy motor specifications and historical engineering requirements tied to this class of rotating electrical equipment.
Overview of 841-1994
This standard addresses the requirements associated with cooled, totally enclosed fan-cooled squirrel cage induction motors in the up-to-500 hp range. It is intended to support consistent motor specification by defining the technical expectations around construction and performance for industrial duty applications. For engineers, purchasers, and maintenance teams, 841-1994 helps frame what qualifies as acceptable equipment within this motor category and provides a reference point for comparing older designs or documentation.
Typical use cases
841-1994 is commonly relevant when selecting or reviewing TEFC squirrel cage induction motors for pumps, fans, compressors, conveyors, and other driven equipment used in industrial facilities. It may also be used during equipment replacement, asset records review, or specification checking where legacy motor requirements still influence procurement. In power, energy, and industrial settings, it supports decisions involving motor sizing, enclosure choice, and compatibility with installed mechanical systems.
Why it matters
Using 841-1994 can help improve consistency in motor selection, reduce specification ambiguity, and support more reliable comparisons between products or legacy equipment. For organizations managing industrial assets, a clear standard reference can lower the risk of mismatched ratings, unsuitable cooling arrangements, or procurement errors. It is also useful for documentation review and compliance tracking when older motor requirements must be understood in their original technical context.
- TEFC squirrel cage induction motor scope
- Up to and including 500 hp rating
- Industrial power and energy applications
- Legacy specification reference
- Publication Date: 1994
- Standard Status: Superseded
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications
- Official IEEE: Doi link
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