Arc fault circuit interrupters

Fire producing arcs can occur in wiring before traditional breakers react. Electrical manufacturers recognized this problem and decided to attempt to stop as many of these electrical fires as possible. The result of the hard work of many is a new arc fault circuit interrupter breaker. These devices work and act like a traditional circuit breaker except that they are smarter. Many of these new devices contain small filters and logic devices that allow them to sense an arc just as it is about to produce the sparks and intense heat. If arcing conditions are present, then the breaker trips instantaneously.

Do not confuse these devices with the personal protection ground fault circuit interrupters (GFCI) that have been around for over 30 years. The GFCI circuit breakers, at the present time, do not have the capability to sense arcs.

The new arc fault circuit breakers are identified in section 210-12 of the 1999 edition of the National Electric Code. Beginning January 1, 2002, they were required to protect branch circuits that serve residential bedrooms. These areas of the house have been identified as the source of many electrical arc related fires. The state of Vermont has taken a slightly more aggressive stance. They are requiring that these new life saving circuit breakers be used in all circuits that feed residential living areas. Their regulation went into effect on January 1, 2001.

These new arc fault breakers can be purchased now in every state in the USA. These breakers are the same size as your existing traditional circuit breakers. The new arc fault breakers cost about $25 - $50 each depending upon manufacturer, but it is a very small price to pay for peace of mind. An experienced electrician can install a new arc fault breaker in a matter of minutes. It actually takes longer to remove and replace the cover to the circuit breaker panel than it does to switch out the breaker.

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