Branch-circuit conductors must have overcurrent protection in accordance with Sec. 240.4, and the overcurrent protection device rating must not exceed the rating marked on the appliance [Sec. 422.11].

All questions and answers are based on the 2011 NEC. Q. What is the Code rule for sizing overcurrent protection for branch circuits [210.20]? A. Branch circuit overcurrent devices must have a rating ...

Guest columnist Faraz Hasan, marketing and business development manager at Tyco Electronics Circuit Protection Products says that LEDs can require overcurrent protection despite built-in safety ...

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 ...