You may have experienced a short circuit on a 15A to 100A branch circuit that also tripped the main breaker in that same panelboard, resulting in widespread downtime. This short circuit may have ...

Short circuit current ratings should not be overlooked during panel design. Negative impacts can occur to production, equipment and, worst case, plant personnel. Per 2014 NEC Article 100, short ...

What you don’t know about circuit breaker markings can trip you up. Most of us pay little attention to markings on circuit breakers. Yet, these markings can be the difference between a safe ...

Explore key insights into miniature circuit breakers, including how they differ from fuses, what selection criteria to consider and their coordination with protective devices for optimal electrical ...

Dynamic Ratings’ new Breaker Performance Monitor (BPM) is a comprehensive circuit breaker monitoring solution for utilities. With high-speed waveform capture, the BPM combines offline and online ...

The “Stab-Lok” circuit breaker and panel produced by Federal Pacific Electric (FPE) installed in hundreds of thousands of homes in the Bay Area may cause house fires, according decades of ...

Q – I have several 20 ampere, “Heinemann” electrical circuit breakers, Trenton, N.J. – CB173, Catalog #0411, Issue #131. Is any person or collector interested in them? – RR, Belleville, N.J. A – I ...