IEEE C62.42.4-2020
Part 4: Thermally Activated Current Limiters
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About This Item
C62.42.4-2020 is a technical standard for thermally activated current limiters, set within the context of components, circuits, devices, and systems used in power, energy, and industry applications. It provides a focused reference for understanding how these protective devices are defined, evaluated, and applied in electrical engineering work. For designers, buyers, and compliance teams, C62.42.4-2020 helps support more consistent specification and comparison of current-limiting solutions.
About C62.42.4-2020
This standard addresses the specific characteristics of thermally activated current limiters, with attention to their role in controlling current under abnormal or demanding operating conditions. C62.42.4-2020 is relevant where thermal response, protection behavior, and device performance need to be described in a structured way. In practice, it helps establish a common technical basis for reviewing design requirements, testing approaches, and expected behavior in electrical systems that rely on component-level current limitation.
Where is C62.42.4-2020 used?
C62.42.4-2020 is commonly used in power-related equipment and industrial electrical assemblies where thermally activated current limiters may be incorporated into protection schemes. It is relevant to component selection, circuit design, and product documentation for devices used in energy infrastructure, control equipment, and other engineered systems that need current-limiting behavior. The standard can also support procurement and specification work when teams need a clear reference for comparing device performance and suitability.
Importance in practice
In practice, C62.42.4-2020 helps reduce ambiguity when specifying or evaluating thermally activated current limiters. That can improve consistency in design review, testing, and compliance checks, especially where protection performance affects system reliability. A clear technical standard also supports safer engineering decisions, more accurate procurement, and better alignment between suppliers and users. For organizations working with current-limiting components, it may serve as an important reference for managing risk and maintaining product consistency.
- Thermally activated current limiters
- Component and circuit-level protection
- Power and industrial applications
- Design, testing, and specification support
- Consistency for procurement and compliance
- Publication Date: 2020
- Standard Status: Active
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Power, Energy and Industry Applications
- Official IEEE: Doi link
- This Version: C62.42.4 (2020)
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