Low Voltage Power Circuit Breakers Manufacturers

Low-voltage power circuit breakers are generally constructed with a metal case. They can be obtained in case sizes that range from 100 to 6000 amperes, and can have trip current ratings that range from 15 to 6000 amperes. Since they are intended to interrupt higher currents, the contact arrangement is generally different than that of molded case circuit breakers. It commonly has two separate sets of contacts. One set is the main contacts and is used to connect the line and load together. The second set, the arcing contacts, is used to direct the arc away from the main contacts.