PC37.13/D23, Sep2008 is a technical standard for voltage AC power circuit breakers used in enclosures, providing guidance that supports safe design and consistent application in power, energy, and industrial settings. It is relevant where enclosed breaker equipment must meet defined electrical and mechanical expectations for performance, protection, and installation practice. For engineers, specifiers, and procurement teams, PC37.13/D23, Sep2008 helps frame requirements around equipment suitability and reliability in enclosed switchgear environments.

Overview of PC37.13/D23, Sep2008

This standard addresses the technical context of voltage AC power circuit breakers installed in enclosures, with attention to the way the breaker and its enclosure work together in service. PC37.13/D23, Sep2008 is useful for identifying design and testing considerations that affect how enclosed breaker equipment is built, rated, and evaluated. In practice, it supports more consistent specification of equipment intended for power distribution and industrial electrical systems where enclosure performance is part of the overall requirement.

Typical use cases

PC37.13/D23, Sep2008 is commonly relevant for enclosed circuit breaker assemblies used in substations, industrial power distribution, and large electrical control installations. It may be referenced when selecting or specifying voltage AC power circuit breakers for switchgear cabinets, protective assemblies, or other equipment enclosures. The standard is especially useful in projects where breaker performance, enclosure compatibility, and electrical coordination need to be considered together during design and procurement.

Why it matters

Using PC37.13/D23, Sep2008 can help reduce uncertainty in design and purchasing decisions for enclosed breaker equipment. It supports more consistent compliance checks, clearer technical evaluation, and better alignment between equipment ratings and application needs. For power system work, that can improve safety margins, reduce application risk, and make testing and acceptance easier to manage. The standard is also valuable when comparing products or verifying that enclosed circuit breakers are being applied in a controlled and repeatable way.

• Voltage AC power circuit breakers
• Enclosed equipment applications
• Power, energy, and industrial systems
• Design, rating, and performance context
• Specification and compliance reference