The ABB Low Voltage Products division has introduced the FORMULA UL family of molded case circuit breakers, dedicated to the most common, general use applications up to 240VAC. The FORMULA line comes ...

The National Electrical Manufacturers Association (NEMA) has recently published NEMA AB 3, "Molded Case Circuit Breakers and Their Application." This application guide covers molded case circuit ...

Siemens has developed new, molded case circuit breaker (MCCB) frame sizes for high current applications to perfectly address the needs of switchgear manufacturers and panel builders in an environment, ...

Circuit breakers are used in nearly all electrical systems — from residential dwellings to electric utility facilities. We rely on them to protect our systems from damaging overcurrents and short ...

A 240-volt service powers heavy-duty appliances like ovens, air conditioners, water heaters and electric dryers. If something goes wrong in that panel, it may cause those systems to fail, damage the ...