IEEE C37.13-1973
Voltage AC power Circuit Breakers used in Enclosures
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About This Item
C37.13-1973 is a technical standard for voltage AC power circuit breakers used in enclosures, providing guidance on how these devices are defined, rated, and evaluated for power, energy, and industry applications. It is relevant where enclosed breaker equipment must support dependable switching and protection under specified operating conditions. As a superseded document, C37.13-1973 remains useful for reference, legacy equipment review, and understanding the design expectations that shaped enclosed AC power circuit breaker practice.
About C37.13-1973
This standard focuses on AC power circuit breakers intended for installation in enclosures, with attention to the electrical and mechanical requirements that affect safe operation and reliable interruption performance. C37.13-1973 is typically used as a technical reference for ratings, construction expectations, and test-related considerations associated with enclosed breaker assemblies. For engineering and procurement work, it helps define a common basis for comparing equipment and verifying that breaker design aligns with established power system practices.
Where is C37.13-1973 used?
The standard is most relevant in electrical power equipment where enclosed AC circuit breakers are selected for distribution, control, and protection duties. It may be used in industrial installations, utility-related switchgear, and other systems that rely on enclosed breaker assemblies to manage overcurrent and fault conditions. C37.13-1973 is also helpful in reviewing legacy panels and maintaining consistency when matching replacement equipment to older enclosure-based breaker specifications.
Importance in practice
In practice, this document supports consistent design and evaluation of enclosed AC power circuit breakers, which can reduce uncertainty during specification and testing. It helps engineers and buyers align on performance expectations, installation suitability, and ratings that affect reliability and safety. For existing equipment, C37.13-1973 can be especially useful when checking compatibility or preserving the intended operation of older systems. Using a clear technical reference also helps limit procurement errors and maintenance risk.
- Voltage AC power circuit breakers
- Enclosed equipment applications
- Ratings and performance reference
- Legacy specification support
- Testing and design consistency
- Publication Date: 1973
- Standard Status: Superseded
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications; Components, Circuits, Devices and Systems
- Official IEEE: Doi link
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