Circuit Breaker 12
Circuit Breaker 12 : A type of electrical overcurrent device. There are circuit breakers and oil circuit breakers; adjustable and nonadjustable; and instantaneous and delay, with thermal tripping mechanisms. (Ref. National Electrical Code) Overcurrent protection devices include thermal cutouts which are not intended to open short circuits or grounds, but may be used to protect motors and heavy branch circuits from overload, and plug fuses which are produced in several types including the onetime and the time delay (Type S), which is designed to discourage tampering or bridging. Overcurrent devices also include thermal cutouts which are not intended to open short circuits, but may be utilized to protect motors and motor branch circuits from overload. Others include various types and classes of cartridge fuses which may be equipped with drop out links, onetime fuses, super-lag renewable, as well as dual element fuses of the blade and ferrule type. (Ref. National Electrical Code)
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