220v20A gfci

[sparky23]

so today we replaced zinsko panel with new - and there is a 20A single pole. 2 screws (so 220v) gfci breaker - what in a residence is 20A 220v? or required to be gfci 20A protected 220v?

thanks in advance - no one else to ask

 

[LarryFine]

You can't tell us what the circuit supplies?

 

[Dennis Alwon]

It could be a spa heater or a spa, swimming pool, car charger etc. I assume it was installed before the 2020 so those are a few things it could be. Maybe bath floor heat although most of those have gfci in the t-stat but the ec may not have known that.

 

[sparky23]

we didnt chase just replaced - so it got a new 220v 20Agfci double pole ch breaker
i just had no one to ask what it could be - no space or floor heater no spa,

 

[LarryFine]

we didnt chase just replaced - so it got a new 220v 20Agfci double pole ch breaker
i just had no one to ask what it could be - no space or floor heater no spa,

How did you correctly label the circuits?

 

[retirede]

Is there a 240V receptacle for a window A/C unit somewhere? Maybe no longer in use.

 

[sparky23]

we swapped cb for cb - they were labeled or rather numbered - no words

 

[AC\DC]

Is it by chance a multi wire circuit. Maybe feeding kitchen?
More info

 

[ppsh]

I'm not aware of Zinsco ever producing a 2 pole GFCI breaker. Can't find anything online, have to dig out an old catalog and see. If it has 2 screws it's a 120v GFCI, line and neutral. 3 screws if it's a 2 pole GFCI. I'm guessing you just sent 240v to some bathroom and or outside receptacle circuit.

 

[ptonsparky]

I'm not aware of Zinsco ever producing a 2 pole GFCI breaker. Can't find anything online, have to dig out an old catalog and see. If it has 2 screws it's a 120v GFCI, line and neutral. 3 screws if it's a 2 pole GFCI. I'm guessing you just sent 240v to some bathroom and or outside receptacle circuit.

I’m thinking someone needs to make a return trip to that job. On their own dollar and quickly.

eta: And label the panel properly while there.

 

[sparky23]

i have a picture - it is a 2 hot nuts with one toggle and the pigtail

 

[ptonsparky]

Did you take a voltage reading on the load side of the breaker? Older GFCI usually took up two spaces. Look at the old breaker and see if it has a contact for both buss.

 

[sparky23]

we are going back to flip switches and label as typical - for sure

 

[hillbilly1]

i have a picture - it is a 2 hot nuts with one toggle and the pigtail

Sure looks like a load neutral next to the hot, is that a screw terminal above the line neutral?

 

[LarryFine]

It looks like a 1p GFCI breaker to me.

 

[Dennis Alwon]

It looks like a 1p GFCI breaker to me.

I agree

 

[Dennis Alwon]

If you look closely you will see that the white wire on the right side is a neutral and the black wire is the hot. The neutral line side is connected to the neutral bar but the circuit load side neutral is connected to the breaker.

 

[Little Bill]

That's a single pole GFCI breaker. If it was a 2-pole there would be another terminal for the neutral. Should have looked at the old GFCI, it would say whether it is 120V or 240V, but you should be able to determine that from the wiring. Looks like someone just yanked wires out without seeing what/how they were landed.

First thing I do on a panel change is find all the white wires on the breakers or fuses, then mark them to identify them as hot/ungrounded conductors. Then check for MWBC and tape them together and mark the neutral for them. Also check for any color besides white or green on the neutral bar. If I find another color, I tape it white or green to identify it as either an EGC or neutral.

 

[sparky23]

it was a 20A single pole gfci - panel labeled all is right in the world - thanks

 

[norcal]

It looks like a 1p GFCI breaker to me.

That is what it is, for a really rare breed, try to find a Zinsco/Sylvania GFCI breaker in a bolt-on model, only have seen one once, the plug-in was fairly common in it's heyday.