Dear Heloise: Most electrical devices now come with POLARIZED PLUGS — one plug is wider than the other. To quickly tell which side goes up, I mark the top side of the plug. I use a white dot of ...

A polarized plug ensures you get the plug in the socket the right way around. <BR><BR> - I've seen some wall warts with polarized plugs. Seems useless to me; I think they're doing it "just because".

UL 153 applies a similar grounding plug requirement on other types of portable luminaires, such as those for wet locations. But there are many indoor use (residential and commercial) portable ...

Samtec Tiger Eye™ contacts are used in new Micro Mate™ discrete wire cable plugs (SFSD Series) to provide cable-to-board solutions for the popular TFM/SFM Series board-to-board interconnect system.