All questions and answers are based on the 2017 NEC. Q. What is the Code requirement for sizing the overcurrent protection of conductors? A. Except as permitted by Sec. 240.4(A) through (G), ...

For the PDF version of this article, click here. Protecting power transistors against overcurrent failure has always been a challenging issue in power circuit design. In order to protect against even ...

Once an engineer has designed the audio circuit of an amplifier, it would be nice to think that most of their task is complete. However, from a system perspective, that is far from true. At the very ...

The classic circuit breaker—a resettable overcurrent cutoff device—has been with us since the 1920s and is well-known for its reliable, consistent performance and a simple schematic symbol (Fig. 1).

TE Circuit Protection has developed a device that helps protect both cost-sensitive PSTN and VoIP telephony equipments, and the customers themselves. PSTN and VoIP equipments are prone to damage due ...

The usual way of preventing a small motor from drawing too much current is to install overcurrent protection in the form of a circuit breaker or some other kind of limiter. But installations that ...

Power systems today operate in an environment where reliability and safety must be maintained despite rising loads, expanding interconnections, and increasing dependence on distributed energy ...

Q. What are the Code rules for sizing overcurrent protection for conductors? A. Except as permitted by (A) through (G), conductors must be protected against overcurrent in accordance with their ...