Electrical Construction & Maintenance

Stumped by the Code? Sizing Overcurrent Protection for Conductors

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 ...
Electrical Construction & Maintenance

Stumped by the Code? Rules for sizing transformer secondary conductors?

Q. What are the NEC rules for sizing transformer secondary conductors? A. A set of conductors supplying single or separate loads is permitted to be connected to a transformer secondary without ...
Electronic Design

Resettable Overcurrent Protection Device For Li-Ion Batteries Offers Size and Cost Benefits

TYCO ELECTRONICS announced the introduction of a Metal Hybrid PPTC (MHP) technology useful for high-rate-discharge battery applications at ratings above 30VDC/30A such as cordless power tools, e-bikes ...
Electronic Design

Protecting MOSFETs Against Overcurrent Events

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 ...