IEEE C37.12-2008
Voltage Circuit Breakers (over 1000 Volts) - Redline
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About This Item
C37.12-2008 is a technical standard for voltage circuit breakers over 1000 volts, presented as a redline edition for easier review of changes. It addresses the requirements that support consistent design, testing, and application of high-voltage switching equipment used in power, energy, and industrial systems. For engineers, purchasers, and compliance teams, it helps clarify expectations for breaker performance and product evaluation in higher-voltage installations.
Overview of C37.12-2008
This standard focuses on voltage circuit breakers intended for service above 1000 volts, where interruption performance, insulation, and operating reliability are critical. C37.12-2008 is used to define and compare requirements for equipment that protects and controls electrical power circuits in demanding environments. As a redline document, it is especially useful when tracking revisions against a prior edition and identifying where technical requirements or wording have changed.
Typical use cases
The standard is commonly referenced for medium- and high-voltage circuit breaker selection, specification, and procurement in utility, industrial, and infrastructure applications. It may be used when evaluating breakers for switchgear assemblies, substation equipment, power distribution systems, and other installations where controlled interruption of fault or load current is required. The technical context is most relevant to organizations working with power systems, electrical apparatus, and related components.
Why it matters
In practice, C37.12-2008 supports clearer compliance and more consistent engineering decisions for breakers operating above 1000 volts. It helps reduce ambiguity in design expectations, testing criteria, and product comparison, which can improve safety and lower the risk of mismatched equipment. For procurement and technical review, a defined standard also makes it easier to assess whether a breaker is suitable for a given application and whether revisions affect previously accepted requirements.
- Voltage circuit breakers above 1000 volts
- Redline comparison edition
- Design and performance requirements
- Testing and compliance reference
- Power, energy, and industrial applications
- Publication Date: 2009
- Standard Status: Superseded
- Publisher: IEEE
- Subject: Power, Energy and Industry Applications; Components, Circuits, Devices and Systems
- Official IEEE: Doi link
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