PC37.17/D11, Mar 2011 is a technical standard for voltage (1000 V and below) AC and general purpose (1500 V and below) DC power circuit breakers. It addresses the engineering and performance expectations associated with these devices, helping define how they are designed, evaluated, and applied within power, energy, and industrial systems. For organizations working with circuit protection and switching equipment, this document supports more consistent selection and compliance decisions.

PC37.17/D11, Mar 2011 overview

This standard focuses on the technical context of low-voltage AC and general-purpose DC power circuit breakers, where reliable interruption and controlled operation are essential. PC37.17/D11, Mar 2011 is used as a reference point for product requirements, testing considerations, and design alignment in applications involving electrical distribution and switching. Its inactive status may be relevant for historical comparison, legacy equipment, or projects that need to trace earlier requirements for breaker evaluation and documentation.

Typical use cases

PC37.17/D11, Mar 2011 is commonly relevant in the specification and review of power circuit breakers used in industrial distribution systems, electrical panels, and general-purpose DC installations. It may also support engineering teams responsible for breaker coordination, product procurement, or compliance documentation for equipment operating at the stated voltage ranges. In practice, it is useful where consistent circuit interruption performance and defined technical expectations matter across power, energy, and related equipment systems.

Why this standard matters

Using a defined standard such as PC37.17/D11, Mar 2011 helps reduce ambiguity when evaluating breaker design, ratings, and expected behavior. That can improve procurement accuracy, support testing consistency, and lower the risk of mismatched equipment in critical power applications. For manufacturers, specifiers, and maintenance teams, it provides a common technical reference that can aid documentation, quality control, and comparison of legacy and project-specific circuit breaker requirements.

• Low-voltage AC circuit breakers
• General-purpose DC breaker applications
• Power and industrial distribution equipment
• Design, testing, and compliance reference
• Legacy technical documentation support