This one is a continuation of the first video about how the 2 pole GFCI works. This is a description of what job the neutral wire connected to the device is used for.
Good explanation. I'm more comfortable with having no connection to neutral now for my pool pumps. The 240V pool pump motors of course have no neutral so i have nothing to connect to the center neutral and I wanted to make sure that was OK. Now that I see its function, leaving it unconnected for a pure 240v load is ok. great video.
Thanks for that explanation! I was confused as to why a 2 pole 240 v breaker would have a load neutral. But your explanation makes perfect sense. If powering a device without need for 120 v then the load neutral is not connected to anything.
WOW. You should make a duplicate of this video called "GFCI 240/120v wiring" and point out the sub panel where the 120v is split out NOT to bond the neutral to the ground bus. 120v needs its own neutral for 120v circuits. I have a pond pump house w 2 240v pumps and a 240v UV light I need 4 120V circuits for air pumps and a beer fridge I looked at 10 er so other vids and figured it out from your vid Thanks a bunch.
Can you please do a video on how a arc fault breaker, how it works, and the difference between arc fault and gfci, I recently had issues with a Square d arc fault dryer breaker, for some reason, the breaker was only allowing 115v on one leg of the dryer plug and 70v on the other leg, I did have a major storm happened around the same time, I just replaced the breaker and it is working normally now, just curious why I had to replace it, also noted I received total of 76v across the two hot legs, explaining this would be great gfm.
Wow. Great explanation. By my simple explanation: So any current that goes out on the red line and back on either black or white balances. Similarly any that goes out on black and comes back on red or white also balances. If any leaks to ground, it doesn't balance. The white neutral MUST be the one that goes to the middle lug of the GFI breaker, NOT the common neutral in the box! So a further question: it would appear that I could split the red and black circuits, with both returns being 120V via the same white neutral that attaches to center of the GFI breaker. And it would still balance, as long as no leakage to ground. AND the box 220V ganged GFI breaker would protect both circuits?!? That is, the black/white pair is a protected 120V circuit and the red/white is a protected 120V pair, both protected by the same breaker GFI?
10 amp draw on L-1 and 10 draw on L-2 to the heating element 240 v AC. Got that part. NOW the control panel for this appliance draws 1 amp at 120 v AC. From one or another of the L-1 or L-2. Got that part. FAIL TO SEE how that balances out. EXPLANATION POSSIBLE. Two separate operations. The 240 volt balances itself, and the 120 volt balances itself. ??? ALTHOUGH it would appear that one side has 11 Amps. Thank you.
Manuel Arruda Understood. My opinion is the only people that can have a good basic understanding are people that have had some formal background in electrical theory. Voltage, current, inductance, capacitance. How does just anyone know why one amp difference make an imbalance? Not trying to be critical just give more precise information. I think the verbal presentation sounds a little unsure of his comments. My Father started teaching me to be an electrician on 1957 so by 1967 I was working as a journeyman electrician. I then was drafted and trained on data processing equipment repair. Went to college after that, worked as communications technician for ten years, electronics, instrumentation controls tech in a 1400MW power plant for twenty years and the lad fifteen were in electrical engineering for engineering research and development. I have a good understanding so Even though the presentation here is helpful to some O think some will be left with a question mark. I have not watched his previous videos and how far they take someone so it is most likely that I am speaking out of turn here and do apologize. I will watch more and keep my comments to myself unless I can add a positive and useful comment. Thanks for questioning my assessment, I do need to be uplifting. 👍🤙😁
@@kenswitzer4133 Take your self over to Mike Holt video on CZcams Grounding - Safety Fundamentals. You will see that some licensed electricians don't have a firm grip on grounding and bonding. I worked in radio and tv broadcasting as an engineer and I could not believe the number of FCC first class licensed engineers that did not fully understand ground and bonding.
@@kenswitzer4133 Thank you for the elaboration. I am an electrician but I try to explain things in the simplest manner I know. I have taught heating and cooling and electrician licensing updates. I believe that I must teach to the one that understands the least. GFM
Good explanation. I'm more comfortable with having no connection to neutral now for my pool pumps. The 240V pool pump motors of course have no neutral so i have nothing to connect to the center neutral and I wanted to make sure that was OK. Now that I see its function, leaving it unconnected for a pure 240v load is ok. great video.
Thanks for that explanation! I was confused as to why a 2 pole 240 v breaker would have a load neutral. But your explanation makes perfect sense. If powering a device without need for 120 v then the load neutral is not connected to anything.
WOW. You should make a duplicate of this video called "GFCI 240/120v wiring" and point out the sub panel where the 120v is split out NOT to bond the neutral to the ground bus. 120v needs its own neutral for 120v circuits. I have a pond pump house w 2 240v pumps and a 240v UV light I need 4 120V circuits for air pumps and a beer fridge I looked at 10 er so other vids and figured it out from your vid Thanks a bunch.
your explanation was spot on GFM, Could you talk about arc fault breakers at some point?
Great job 👏
Good video ! how would it work if I had a 220 volt appliance without a neutral ,would a GFCI breaker still work?
It is actually made just for that type of appliance.
GFM
Can you please do a video on how a arc fault breaker, how it works, and the difference between arc fault and gfci, I recently had issues with a Square d arc fault dryer breaker, for some reason, the breaker was only allowing 115v on one leg of the dryer plug and 70v on the other leg, I did have a major storm happened around the same time, I just replaced the breaker and it is working normally now, just curious why I had to replace it, also noted I received total of 76v across the two hot legs, explaining this would be great gfm.
It is on the list.
GFM
Wow. Great explanation. By my simple explanation: So any current that goes out on the red line and back on either black or white balances. Similarly any that goes out on black and comes back on red or white also balances. If any leaks to ground, it doesn't balance. The white neutral MUST be the one that goes to the middle lug of the GFI breaker, NOT the common neutral in the box! So a further question: it would appear that I could split the red and black circuits, with both returns being 120V via the same white neutral that attaches to center of the GFI breaker. And it would still balance, as long as no leakage to ground. AND the box 220V ganged GFI breaker would protect both circuits?!? That is, the black/white pair is a protected 120V circuit and the red/white is a protected 120V pair, both protected by the same breaker GFI?
That is correct.
GFM
@@grayfurnaceman Thank you so much for the rreply. Awesome!! I subscribed.
10 amp draw on L-1 and 10 draw on L-2 to the heating element 240 v AC.
Got that part. NOW the control panel for this appliance draws 1 amp at 120 v
AC. From one or another of the L-1 or L-2. Got that part. FAIL TO SEE
how that balances out. EXPLANATION POSSIBLE. Two separate operations.
The 240 volt balances itself, and the 120 volt balances itself. ???
ALTHOUGH it would appear that one side has 11 Amps. Thank you.
There is a balancing circuit built in to the device for neutral. The loss of balance that will open the GFCI is a loss to ground.
GFM
👍🤯Thanks
Welcome
GFM
Not a very good explanation on this.
Not a very good comment on this. Saying something is good or bad without elaboration isn't helpful.
Manuel Arruda Understood. My opinion is the only people that can have a good basic understanding are people that have had some formal background in electrical theory. Voltage, current, inductance, capacitance. How does just anyone know why one amp difference make an imbalance? Not trying to be critical just give more precise information. I think the verbal presentation sounds a little unsure of his comments. My Father started teaching me to be an electrician on 1957 so by 1967 I was working as a journeyman electrician. I then was drafted and trained on data processing equipment repair. Went to college after that, worked as communications technician for ten years, electronics, instrumentation controls tech in a 1400MW power plant for twenty years and the lad fifteen were in electrical engineering for engineering research and development. I have a good understanding so Even though the presentation here is helpful to some O think some will be left with a question mark.
I have not watched his previous videos and how far they take someone so it is most likely that I am speaking out of turn here and do apologize. I will watch more and keep my comments to myself unless I can add a positive and useful comment. Thanks for questioning my assessment, I do need to be uplifting. 👍🤙😁
@@kenswitzer4133 Take your self over to Mike Holt video on CZcams Grounding - Safety Fundamentals. You will see that some licensed electricians don't have a firm grip on grounding and bonding. I worked in radio and tv broadcasting as an engineer and I could not believe the number of FCC first class licensed engineers that did not fully understand ground and bonding.
@@kenswitzer4133 Thank you for the elaboration. I am an electrician but I try to explain things in the simplest manner I know. I have taught heating and cooling and electrician licensing updates. I believe that I must teach to the one that understands the least.
GFM