PC37.17/D10, Mar 2011 is a technical standard for voltage and general-purpose power circuit breakers rated 1000 V AC and below, as well as 1500 V DC and below. It provides a focused reference for equipment used in power, energy, and related industrial applications where switching and interruption performance must be defined consistently. For engineers, buyers, and compliance teams, this document helps clarify the expected scope for breaker design, testing, and application.

About PC37.17/D10, Mar 2011

This standard addresses power circuit breakers intended for low-voltage AC systems and general-purpose DC systems within the stated voltage limits. PC37.17/D10, Mar 2011 is relevant when equipment needs a common technical basis for ratings, construction, and performance expectations. In practice, it supports more consistent specification and evaluation of breakers used in electrical distribution and industrial control environments. Its inactive status should be considered when reviewing legacy designs, archived procurement documents, or older compliance records.

Where is PC37.17/D10, Mar 2011 used?

PC37.17/D10, Mar 2011 is typically used in contexts involving low-voltage power distribution, feeder protection, and switching equipment for AC and DC circuits. It is especially relevant where circuit breakers must be selected for power panels, switchgear assemblies, and industrial electrical systems operating within the defined voltage range. The standard may also be referenced in documentation for engineering review, product comparison, and technical procurement of breaker equipment intended for controlled interruption and protection duties.

Importance in practice

In practice, this standard helps reduce ambiguity around breaker requirements for voltage class, application scope, and expected performance. That matters for safety, design control, and procurement because circuit breakers must be matched carefully to the electrical system they protect. PC37.17/D10, Mar 2011 can support more reliable testing and specification reviews, especially when comparing legacy products or maintaining consistency across equipment families. It also helps limit risk when documenting compliance for low-voltage power circuits.

• Low-voltage AC circuit breaker scope
• General-purpose DC breaker application
• Power distribution and switchgear use
• Design, testing, and rating reference
• Legacy compliance and procurement support