Ground Fault Circuit Interrupters (GFCI) have been part of the NEC code for over 40 years now and just like your car, things have changed. Over the years the code has changed but also makers of GFCI and Underwriters Laboratories (UL) have made a lot of good changes. Life saving changes that probably nobody except a few electricians have noticed. Today, most people just think of the GFCI in their bathroom or kitchen and will probably never know all the great GFCI that are available.
Today, the standard GFCI that you see in your wall is either 15 or 20 amp and the most noticeable feature you see is a light, usually a little green light. If you don’t see the light or the light has changed colors then your GFCI will not work. What you don’t see is that GFCI are self testing every 15 minutes. A trip can be reset, but a failed GFCI will not reset and you will have to replace the GFCI. Another feature is that the GFCI comes from the factory in the tripped position and if it is mis-wired you will not be able to reset the GFCI until it is corrected.
Did you know there are tamper resistant receptacles and GFCI? Now manufacturers make tamper resistant GFCI for your children’s bathroom. These meet the same stringent requirements of a standard GFCI, but now somebody cannot just stick something conductive into any slot of the GFCI. Now you can sleep better at night knowing your kids are safer. The tamper-resistant receptacles and GFCI have been NEC code since 2008 but not all municipalities are enforcing it yet.
Now you can buy weather resistant GFCI. It will still have to go in a weather resistant cover or even a bubble cover. Weather-resistant GFCI are made to go outside, being able to take extreme temperatures, UV and moisture. The weather resistant GFCI are also made with the tamper resistant feature.
Another faceless GFCI is the high current GFCI which can handle up to 80 amps at 240 volts. These feature a current sense transformer called a donut which is powered by 120 volts. If you need a GFCI for your spa or equipment and cannot find a breaker, then these will come in handy. The high current GFCI should only be installed by a licensed electrician.
Do you need a night light or a guide light? GFCI are made with a receptacle and a light. A photo sensor turns the light on and off. How about a pilot light with your GFCI? The light comes on when there is a load on the GFCI. Comes in handy in basements with sump pumps. All the lights are LED for low power consumption and long life. Do you need a switch and the only room is a GFCI? Replace the GFCI with a combination switch and GFCI. The switch is independent of the GFCI and can turn on that vent or light. These combination devices can also be purchased with the tamper-resistant feature and no safety feature has been removed.
There are other GFCI made like extension cords with GFCI, or GFCI that can be wired in as the plug of an extension cord. Panel mount GFCI are available for sump pumps, generators or temporary power.
While this might not have been the most exciting read you’ve had today, I hope that this might help on your next DIY Home Improvement Project.
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