Standards and ratings for the application of molded-case, insulated-case, and power circuit breakers

Author

Roybal, David D.

Author_Institution

Cutler-Hammer Inc., Lafayette, CA, USA

Volume

37

Issue

2

fYear

2001

Firstpage

442

Lastpage

451

Abstract

Molded-case circuit breakers (MCCBs), insulated-case circuit breakers (ICCBs), and power circuit breakers (PCBs) are used by electrical engineers in power distribution system designs primarily to protect low-voltage electrical equipment and circuits. Safe application requires an understanding of their performance and ratings. Proper application of these devices can ensure continuity of power during system disturbances. This discussion focuses on domestic standards and ratings for the application of low-voltage industrial-grade MCCBs, ICCBs, and PCBs rated 600 V AC or lower for use in switchboards and switchgear. A comparison of switchboard and switchgear requirements for the devices is also included where it is useful

Keywords

circuit breakers; power distribution protection; standards; switchgear testing; 600 V; domestic standards; insulated-case circuit breakers; low-voltage electrical equipment protection; moulded-case circuit breakers; performance; power circuit breakers; power distribution system designs; ratings; switchboards; switchgear; ANSI standards; Assembly; Circuit breakers; Circuit testing; Dielectrics and electrical insulation; Ear; Manufacturing; Pulp and paper industry; Switchgear; Switching circuits;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.913707

Filename

913707