old gfci different then new gfci outlet why?

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zappy

zappy

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i noticed a gfci outlet i had a while and a new one i just bought both 20amp.new one had the t shape slot old one didn't why?i don't think i've seen a appilance plug with a t shape prong.
 
your confusing a 15a gfi with 20 amp feed thru capacity. In other words, one of your gfi's wasn't a 20 amp receptacle.


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15 amp with 20 amp feed-thru
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20 amp with 20 amp feed-thru
 
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The old one was a 15a receptical - with "20a feed-thru" rating . The new one is a 20a recept with 20a feed-thru.

Wow - I type slow....
 
Consequently, there is nothing with a "T shaped prong". 15 amp appliances have two prongs that are both straight up and down. 20 amp appliances have one straight up and down, and one sideways. The T slot is to accomodate either a 15 or 20 amp plug.
 
thank you.what is a 15amp with a 20amp feed thru for?

thank you.what is a 15amp with a 20amp feed thru for?

never heard of this?
 
zappy said:
never heard of this?
Click to expand...
It just means you can use a 15 amp GFCI on a 20 amp circuit, and have 20 amps worth of real load on the load side of the 15 amp GFCI without blowing up the GFCI. The 15 amp rating on a GFCI essentially just is in regard to the face of the device. Otherwise, it's 20 amps worth of sturdy.
 
so how do you know if you have a 15amp with a 20amp feed thru?

so how do you know if you have a 15amp with a 20amp feed thru?

does it say on the box?
 
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