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About Circuit Breakers
Circuit breakers are switching devices capable of making, carrying and breaking currents under normal circuit conditions and making, carrying for a specified time, and breaking current under specified abnormal conditions such as a short circuit. Low voltage circuit breakers have voltage ratings from 250 to 600 V AC and 250 to 700 V DC. The molded case circuit breaker is one of the two basic low voltage classes of circuit breakers. The other class is the low voltage power circuit breaker. Medium voltage circuit breakers are rated up to 72.5 kV. ANSI or IEC is normally the governing standard for medium voltage circuit power breakers. ANSI is associated with U.S. standards, and IEC is associated with international standards. For standard definitions, refer to ANSI 37.100 Definitions for Power Switchgear.
Engineering Web: Circuit Breakers - Machine Design
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Hydraulic-magnetic circuit breakers | Machine Design Hydraulic-magnetic circuit breakers January 12, 2006 |
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Circuit Breakers | Machine Design Circuit Breakers November 15, 2002 Printer-friendly version Circuit breakers are manual switches that open under overload conditions. |
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Circuit Breakers for Equipment | Machine Design E-T-A Circuit Break-ers, 1551 Bishop Court, Mount Prospect, IL 60056, (847) 827-2700,e-t-a.com |
