Residential electrical branch circuit breakers incorporate electronic and electrical technology in Arc Fault Circuit Interrupters that can turn off power to prevent fires if arcing occurs. This ...

When you plug something in at home, you expect the receptacle (aka outlet) to have power. If it doesn’t, you probably know to check and reset the circuit breaker. But what if the breaker didn’t trip?

When a circuit is pushed past its limits, it rarely fails politely. It signals trouble through tripped breakers, hot outlets, ...

A building requirement aimed at making new homes in Ohio safer from the threat of electrical fires will go into effect a year after originally intended. The new rules, part of the 2008 National ...

Reviewing a typical protective device trip curve (click here to see Fig. 2), it can be divided into three regions. First is the “instantaneous region,” which is the region intended to interrupt ...

The United States' National Electrical Code (NEC) recently expanded Arc-Fault Circuit Interrupter (AFCI) requirements (see "Arc-Detecting Circuit Breakers Will See Wider Use" at ...

Circuit breakers are manual switches that open under overload conditions. Circuit breakers discussed here are general-purpose types that meet the minimum Underwriters' Laboratories Inc. (UL) standards ...

For most of my life, my main experience with circuit breakers has been resetting the kitchen or bathroom Ground Fault Circuit Interrupters (GFCIs) when they occasionally trip. As a result, although ...

This is the second part of a two-part series on the methodologies used to find the short circuit current duties of circuit breakers and fuses. The first part, Short Circuit Current Duties of Circuit ...

Guyana Power and Light Incorporated (GPL) yesterday blamed a circuit breaker fault at the Garden of Eden Power Plant for the shutdown of the Demerara-Berbice Interconnected System (DBIS) that left its ...