Aic Circuit Breaker

Protected circuit breaker s stand alone interrupting rating.

Aic circuit breaker.

Aic or ampere interrupting capacity is an important factor to consider when choosing a circuit breaker. In this section individual or stand alone interrupting rating is used to denote the interrupting rating of a circuit breaker or fuse. Molded case circuit breakers are required to be marked with the aic rating when it exceeds 5000 amperes. Most people are familiar with the term arcing.

Arc fault circuit interrupters afcis are required by the national electrical code for certain electrical circuits in the home. Square d qo 30 amp single pole circuit breaker model qo130cp 9 98 9. Circuit breakers typically have aic ratings of between 5 000 and 200 000 aic. What is an arc fault.

Square d qo 20 amp single pole plug on neutral dual function cafci and gfci circuit breaker model qo120pdfc 54 24 54 24. Buy 6 or more 48 82. Circuit breakers are tested and then rated as to their ability to open the protected circuit with a specific amount of current flowing in the circuit. Then consider the uncertain future of building spaces.

The interrupting rating of a branch circuit circuit breaker is required by 240 83 to be marked on the circuit breaker unless its interrupting rating is 5000a. So this series rated combination applied as shown does not comply with 240 86 c. Below are some frequently asked questions about afcis and the benefits of installing them in your home. A circuit breaker s aic ampere interrupting capacity determines how much current protection it provides.

Panelboards and switchboards are listed in accordance with ansi ul 67 and ansi ul 891 and are covered under the qeuy and wevz product categories respectively. The motor load is 282a which exceeds 1 of 22 000a 220a. The amount of fault current available must not exceed the breaker s ability to safely open the circuit.