IEEE C37.100.5-2018
Voltage Circuit Breakers Above 1000 Vac and 3200 Vdc, and Reclosers and Other Distribution Equipment from 1000 Vac to 38 000 Vac
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About This Item
C37.100.5-2018 is a technical standard for voltage circuit breakers above 1000 Vac and 3200 Vdc, along with reclosers and other distribution equipment from 1000 Vac to 38 000 Vac. It addresses equipment used in power, energy, and industrial applications where switching performance, electrical ratings, and reliable operation are important. For engineers, purchasers, and compliance teams, this standard helps define a clearer technical basis for evaluating distribution-class apparatus and related components.
About C37.100.5-2018
This standard focuses on the characteristics and application context of medium- and higher-voltage circuit breakers and reclosers used in distribution equipment. C37.100.5-2018 is relevant where equipment must be selected, specified, or compared against defined voltage and operational requirements. It is especially useful for clarifying the technical scope around interruption, switching, and distribution service conditions. In product documentation, it can support more consistent interpretation of design limits, ratings, and expected performance.
Where is C37.100.5-2018 used?
C37.100.5-2018 is typically used in utility distribution systems, substation equipment, and industrial power networks that rely on circuit breakers or reclosers to manage switching and fault interruption. It may also apply in procurement and engineering workflows for distribution equipment operating in the specified voltage ranges. Common use cases include equipment selection, specification review, and conformity checks for apparatus intended for service in power delivery and related electrical infrastructure.
Importance in practice
In practice, C37.100.5-2018 helps reduce ambiguity when designing, sourcing, or testing voltage circuit breakers and related distribution devices. A clear standard supports more consistent ratings, safer application of equipment, and better alignment between specifications and installed performance. It can also help limit procurement errors by giving buyers and engineers a shared technical reference. For organizations managing electrical assets, that consistency is valuable for compliance, risk reduction, and lifecycle planning.
- Voltage circuit breakers above 1000 Vac
- 3200 Vdc circuit breaker applications
- Reclosers for distribution networks
- Equipment from 1000 Vac to 38 000 Vac
- Specification, testing, and compliance reference
- Publication Date: 2018
- Standard Status: Active
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Power, Energy and Industry Applications
- Official IEEE: Doi link
- This Version: C37.100.5 (2018)
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