15 and/or 20A gfci code reqirements in kitchen

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kenkar

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Question: What are guidelines for using 15A gfcis in kitchen, bathrooms/
1: can 15A gfci be used for 20a circuit and vice versa.
2: are some gfci manufacturers offerring dual rated/
3: any suggestions for use of gfci where there maybe dedicated and nondedicated circuits.
4: should all 20 A be used ; should all 15 A be used
5 : some manufactures have dual rated; 15Agfci has feedthru for 20A
6: trying to figure this out and need advice.
 
kenkar said:
Question: What are guidelines for using 15A gfcis in kitchen, bathrooms/
1: can 15A gfci be used for 20a circuit and vice versa.
2: are some gfci manufacturers offerring dual rated/
3: any suggestions for use of gfci where there maybe dedicated and nondedicated circuits.
4: should all 20 A be used ; should all 15 A be used
5 : some manufactures have dual rated; 15Agfci has feedthru for 20A
6: trying to figure this out and need advice.
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you can use 15 amp rated receptacles on 20amp branch circuits as long as it's not a dedicated 20 amp branch circuit serving a single appliance. But you can't use 20 amp recepts on 15 amp branch circuits.
 
steelersman said:
you can use 15 amp rated receptacles on 20amp branch circuits as long as it's not a dedicated 20 amp branch circuit serving a single appliance. But you can't use 20 amp recepts on 15 amp branch circuits.
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You are permitted to use a 15 duplex receptacle on a 20 amp circuit dedicated or otherwise. You are also permitted to use a 20 amp single receptacle on a 15 amp circuit.
 
infinity said:
You are permitted to use a 15 duplex receptacle on a 20 amp circuit dedicated or otherwise. You are also permitted to use a 20 amp single receptacle on a 15 amp circuit.
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TimtheToolManTaylor2.jpg

Huh????:confused:​
 
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I don't see it changing much in a home, but in industrial or commercial it sure can. :smile:

Say I have a cord and plug connected machine that requires 70 amp over current protection. The plug and receptacle will likely be 100 amp rated so it is good that I can (IMO) supply that 100 amp receptacle at 70 amps.
 
iwire said:
210.21(B)(1) does not prohibit me from placing a single 20 amp receptacle on a 15 amp circuit.
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I agree iwire 210.21(B)(1) does not prohibit placing a single 20 amp receptacle on a 15 amp circuit. However section 210.21(B)(3) prohibits placing a 20 amp duplex receptacle on a 15 amp circuit. Interesting?:smile:
 
iwire said:
I don't see it changing much in a home, but in industrial or commercial it sure can. :smile:

Say I have a cord and plug connected machine that requires 70 amp over current protection. The plug and receptacle will likely be 100 amp rated so it is good that I can (IMO) supply that 100 amp receptacle at 70 amps.
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likewise on a 40 amp 2 pole breaker supplying a 50 amp range receptacle.
 
steelersman said:
likewise on a 40 amp 2 pole breaker supplying a 50 amp range receptacle.
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That's the real common installation. Guess people don't really think about it too much except when you mention a 20 amp single on a 15 amp circuit.
 
infinity said:
That's the real common installation. Guess people don't really think about it too much except when you mention a 20 amp single on a 15 amp circuit.
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Yeah, then all hell breaks out... :roll: Usually followed by, "what if someone plugs something..."
 
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