IEEE C37.4thru9-1945
ASA American Standards for Alternating Current Power Circuit Breakers
Available Formats:
- Availability: Immediate Download
- Language: English
- License Type: Single User
- Updates: Not Included
- Availability: Request Quote
- Language: English
- License Type: Enterprise / Multi User
- Updates: Included
About This Item
C37.4thru9-1945 is an English-language ASA American Standards document for alternating current power circuit breakers, providing technical guidance for equipment used to interrupt and control AC power circuits. It is relevant to engineers and purchasers who need a defined basis for breaker design, rating, and performance expectations in power, energy, and industrial applications. As a superseded standard, it also serves as an important reference for legacy equipment, historical compliance review, and specification comparison.
About C37.4thru9-1945
C37.4thru9-1945 addresses the standards framework for alternating current power circuit breakers under the ASA American Standards system. In practical terms, it helps define the technical context for breaker construction and expected behavior in power circuit applications, where interruption capability and consistent operation are critical. This makes the standard useful when reviewing older equipment documentation, comparing technical requirements, or interpreting legacy procurement and engineering records associated with C37.4 and related breaker specifications.
Where is C37.4thru9-1945 used?
This standard is typically used in electrical power systems and industrial installations that rely on alternating current circuit breakers for switching and fault interruption. It is relevant to equipment specified for substations, distribution networks, plant power systems, and other high-duty electrical applications where breaker performance affects system continuity. For teams handling legacy apparatus, C37.4thru9-1945 can support drawings, maintenance records, and technical reviews tied to breaker selection and system coordination.
Importance in practice
In practice, C37.4thru9-1945 helps create a common technical reference for design control, procurement, and testing of AC power circuit breakers. Using a recognized standard reduces ambiguity when comparing equipment ratings, reviewing compliance claims, or assessing whether older devices meet expected performance levels. Because the document is superseded, it is especially valuable for historical traceability and for understanding the requirements that shaped installed breaker fleets and related engineering decisions.
- AC power circuit breaker context
- ASA American Standards reference
- Legacy equipment and historical review
- Design, rating, and performance guidance
- Publication Date: 1945
- Standard Status: Superseded
- Publisher: IEEE
- Subject: Components, Circuits, Devices and Systems; Power, Energy and Industry Applications
- Official IEEE: Doi link
- This Version: C37.4 (1945)
Please request information about the document. Contact Page
Need This Standard?
Request a personalized quote today to receive the latest edition in PDF or other available formats.
Need This Standard?
Request a personalized quote today to receive the latest edition in PDF or other available formats.
Summarize with AI
Get quick summaries using your favorite AI engine.
Online Standart Disclaimer
OnlineStandart.com is an authorized reseller of international standards, operating through partnerships with authorized distributors. We do not own the copyrights or trademarks of the standards we sell, including but not limited to those of API, ASHRAE, BSI, SAE, ASTM, IEEE, IEC, ASME, ISO, and others.
All product names, logos, and brands are the property of their respective owners and are used for identification purposes only; their use does not imply endorsement. OnlineStandart.com is not affiliated with or endorsed by any standards development organization unless explicitly stated. The content of this document is for informational purposes only and is intended to promote our licensed reselling services.
Online Standart does not host, distribute, or link to free, unlicensed, or uncertified copies of copyrighted standards. Every document we deliver is a licensed copy obtained through authorized channels and supplied with full licensing documentation. The “Free PDF Download” option on our product pages refers to this free informational document — never to a free copy of any standard.