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How can I tell if a breaker uses both phases/legs
What can I do about a breaker that trips frequently on a Stab-Lok panel?Do I need a ground for a new 240 volt 20 amp circuit?Intermittent (shuts off randomly) power to one leg (hot) wire in sub panelHow to tell if breaker box can handle another tandem breaker?Circuit breaker - on different phasesChinese Breaker Box (240v split-phase?) Lacks Neutral Wires and Grounding BusSeeking good method to locate short on buried AC power cableFloating service panel groundHow can I tell if this is a split bus panel with no main breaker?Adding the Sense electricity monitor to my breaker box2 wires with same neutral in a tandem circuit breaker on the same leg
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
Good day.
I hooked up Sense monitor by adding a 240v breaker to my panel (bottom 2 slots on one leg). Problem is Sense has detected that my breaker is sitting on two slots that occupy the same phase/leg of the panel.
How can I tell of there is 2 slots in the electrical panel that will occupy both phase/legs so that Sense will work properly? From reading I suspect Sense monitor power needs to be connected to both phases/legs.
Panel:
Stab-lok
CAT NO. BE 116-32
MAINS 125 AMP.MAX.
120/240 VOLTS A.C.
1 Phase 3 Wire
Y24-863A
electrical electrical-panel
asked 8 hours ago
Alister55Alister55
112
New contributor
Alister55 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
|
show 3 more comments
Good day.
I hooked up Sense monitor by adding a 240v breaker to my panel (bottom 2 slots on one leg). Problem is Sense has detected that my breaker is sitting on two slots that occupy the same phase/leg of the panel.
How can I tell of there is 2 slots in the electrical panel that will occupy both phase/legs so that Sense will work properly? From reading I suspect Sense monitor power needs to be connected to both phases/legs.
Panel:
Stab-lok
CAT NO. BE 116-32
MAINS 125 AMP.MAX.
120/240 VOLTS A.C.
1 Phase 3 Wire
Y24-863A
electrical electrical-panel
asked 8 hours ago
Alister55Alister55
112
New contributor
Alister55 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
If it is a 240v (two pole) breaker that is designed for that panel, it should hit both legs. If you test the voltage between the two lugs on the breaker is it 240v?
– JPhi1618
8 hours ago
Added some images to original post.
– Alister55
4 hours ago
Sense Response: we noticed that your Sense power wires are drawing from the same phase, or leg. of your electrical panel. It's possible that the power wires were either installed on a tandem breaker or, if you installed on a 240V breaker, Sense is sitting on two slots that occupy the same phase/leg of the panel. While the 240V breaker does ensure that it draws power from two different slots on the panel, depending on where it is placed, those two slots can be drawing from the same phase. To put it into perspective, this is what the phase pattern of the left side of your panel could look like:
– Alister55
4 hours ago
phase A phase B phase A phase B phase B phase B If your double breaker is attached on a spot where the phase repeats (consecutive phase A), such as towards the bottom, you may run into the issue I've described. I cannot say for sure what your panel phase map is, but you should refer to what is printed on the panel, or reach out to your electrician.
– Alister55
4 hours ago
1
This is a straight up guess, but it looks like all of your other 240v breakers straddle one of those thick lines on the breaker numbering label. So the order of the slots could be AA|BB|AA|BB.
– JPhi1618
4 hours ago
|
show 3 more comments
Good day.
I hooked up Sense monitor by adding a 240v breaker to my panel (bottom 2 slots on one leg). Problem is Sense has detected that my breaker is sitting on two slots that occupy the same phase/leg of the panel.
How can I tell of there is 2 slots in the electrical panel that will occupy both phase/legs so that Sense will work properly? From reading I suspect Sense monitor power needs to be connected to both phases/legs.
Panel:
Stab-lok
CAT NO. BE 116-32
MAINS 125 AMP.MAX.
120/240 VOLTS A.C.
1 Phase 3 Wire
Y24-863A
electrical electrical-panel
asked 8 hours ago
Alister55Alister55
112
New contributor
Alister55 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Good day.
I hooked up Sense monitor by adding a 240v breaker to my panel (bottom 2 slots on one leg). Problem is Sense has detected that my breaker is sitting on two slots that occupy the same phase/leg of the panel.
How can I tell of there is 2 slots in the electrical panel that will occupy both phase/legs so that Sense will work properly? From reading I suspect Sense monitor power needs to be connected to both phases/legs.
Panel:
Stab-lok
CAT NO. BE 116-32
MAINS 125 AMP.MAX.
120/240 VOLTS A.C.
1 Phase 3 Wire
Y24-863A
electrical electrical-panel
electrical electrical-panel
asked 8 hours ago
Alister55Alister55
112
New contributor
Alister55 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 hours ago
Alister55Alister55
112
New contributor
Alister55 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 4 hours ago
Alister55
asked 8 hours ago
Alister55Alister55
112
New contributor
Alister55 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 hours ago
Alister55Alister55
112
asked 8 hours ago
Alister55Alister55
112
112
New contributor
Alister55 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Alister55 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
1
If it is a 240v (two pole) breaker that is designed for that panel, it should hit both legs. If you test the voltage between the two lugs on the breaker is it 240v?
– JPhi1618
8 hours ago
Added some images to original post.
– Alister55
4 hours ago
Sense Response: we noticed that your Sense power wires are drawing from the same phase, or leg. of your electrical panel. It's possible that the power wires were either installed on a tandem breaker or, if you installed on a 240V breaker, Sense is sitting on two slots that occupy the same phase/leg of the panel. While the 240V breaker does ensure that it draws power from two different slots on the panel, depending on where it is placed, those two slots can be drawing from the same phase. To put it into perspective, this is what the phase pattern of the left side of your panel could look like:
– Alister55
4 hours ago
phase A phase B phase A phase B phase B phase B If your double breaker is attached on a spot where the phase repeats (consecutive phase A), such as towards the bottom, you may run into the issue I've described. I cannot say for sure what your panel phase map is, but you should refer to what is printed on the panel, or reach out to your electrician.
– Alister55
4 hours ago
1
This is a straight up guess, but it looks like all of your other 240v breakers straddle one of those thick lines on the breaker numbering label. So the order of the slots could be AA|BB|AA|BB.
– JPhi1618
4 hours ago
|
show 3 more comments
1
If it is a 240v (two pole) breaker that is designed for that panel, it should hit both legs. If you test the voltage between the two lugs on the breaker is it 240v?
– JPhi1618
8 hours ago
Added some images to original post.
– Alister55
4 hours ago
Sense Response: we noticed that your Sense power wires are drawing from the same phase, or leg. of your electrical panel. It's possible that the power wires were either installed on a tandem breaker or, if you installed on a 240V breaker, Sense is sitting on two slots that occupy the same phase/leg of the panel. While the 240V breaker does ensure that it draws power from two different slots on the panel, depending on where it is placed, those two slots can be drawing from the same phase. To put it into perspective, this is what the phase pattern of the left side of your panel could look like:
– Alister55
4 hours ago
phase A phase B phase A phase B phase B phase B If your double breaker is attached on a spot where the phase repeats (consecutive phase A), such as towards the bottom, you may run into the issue I've described. I cannot say for sure what your panel phase map is, but you should refer to what is printed on the panel, or reach out to your electrician.
– Alister55
4 hours ago
1
This is a straight up guess, but it looks like all of your other 240v breakers straddle one of those thick lines on the breaker numbering label. So the order of the slots could be AA|BB|AA|BB.
– JPhi1618
4 hours ago
1
1
If it is a 240v (two pole) breaker that is designed for that panel, it should hit both legs. If you test the voltage between the two lugs on the breaker is it 240v?
– JPhi1618
8 hours ago
If it is a 240v (two pole) breaker that is designed for that panel, it should hit both legs. If you test the voltage between the two lugs on the breaker is it 240v?
– JPhi1618
8 hours ago
Added some images to original post.
– Alister55
4 hours ago
Added some images to original post.
– Alister55
4 hours ago
Sense Response: we noticed that your Sense power wires are drawing from the same phase, or leg. of your electrical panel. It's possible that the power wires were either installed on a tandem breaker or, if you installed on a 240V breaker, Sense is sitting on two slots that occupy the same phase/leg of the panel. While the 240V breaker does ensure that it draws power from two different slots on the panel, depending on where it is placed, those two slots can be drawing from the same phase. To put it into perspective, this is what the phase pattern of the left side of your panel could look like:
– Alister55
4 hours ago
Sense Response: we noticed that your Sense power wires are drawing from the same phase, or leg. of your electrical panel. It's possible that the power wires were either installed on a tandem breaker or, if you installed on a 240V breaker, Sense is sitting on two slots that occupy the same phase/leg of the panel. While the 240V breaker does ensure that it draws power from two different slots on the panel, depending on where it is placed, those two slots can be drawing from the same phase. To put it into perspective, this is what the phase pattern of the left side of your panel could look like:
– Alister55
4 hours ago
phase A phase B phase A phase B phase B phase B If your double breaker is attached on a spot where the phase repeats (consecutive phase A), such as towards the bottom, you may run into the issue I've described. I cannot say for sure what your panel phase map is, but you should refer to what is printed on the panel, or reach out to your electrician.
– Alister55
4 hours ago
phase A phase B phase A phase B phase B phase B If your double breaker is attached on a spot where the phase repeats (consecutive phase A), such as towards the bottom, you may run into the issue I've described. I cannot say for sure what your panel phase map is, but you should refer to what is printed on the panel, or reach out to your electrician.
– Alister55
4 hours ago
1
1
This is a straight up guess, but it looks like all of your other 240v breakers straddle one of those thick lines on the breaker numbering label. So the order of the slots could be AA|BB|AA|BB.
– JPhi1618
4 hours ago
This is a straight up guess, but it looks like all of your other 240v breakers straddle one of those thick lines on the breaker numbering label. So the order of the slots could be AA|BB|AA|BB.
– JPhi1618
4 hours ago
|
show 3 more comments
1 Answer
1
active
oldest
votes
Stab-Lok is a PROBLEM
See, for example, What can I do about a breaker that trips frequently on a Stab-Lok panel?
So first read up on Stab-Lok, post a picture of your panel (the pros will recognize it and tell you if it really is a fire hazard, etc.) and determine if this is a concern. If it is a real concern, then dealing with replacement is a much higher priority than hooking up the Sense monitor.
How it SHOULD Work
On many panels (I don't know if Stab-Lok is supposed to work this way or not), a true double (240V) breaker will always hit both legs. The exception is a double-stuff breaker, where it is really two-breakers-in-one. In that case, it normally only hits one leg, and the exception is if it can actually be 1/2 of one leg and 1/2 of the other leg. But that, as I understand it, is only on certain panels where you can have a quad == 4 in one, but really 4 in 2 - i.e., a double-space breaker that has 4 individual breakers, two on one leg, two on the other leg, with the result that the inner breakers can function together as a "double 240V breaker".
FIRST FIGURE OUT THE STAB-LOK!
answered 8 hours ago
manassehkatzmanassehkatz
12.3k1843
1
I will have a read on the Stab-lok issue to be sure it isn't a fire hazard. Hate the idea of having to replace the panel but better than the house burning down. I would think that it's not a problem since the panel has been inspected but because it's labeled inspected for the garage power maybe they didn't look into this panel. As far as the Sense issue goes, I noticed an circuit image on the inside of the panel cover I pulled off and will look at that and post if I can make sense of it.
– Alister55
3 hours ago
1
"Inspected" can mean: "Inspected at time of initial installation" - which would mean nothing because at the time the hazards were not well known.
– manassehkatz
3 hours ago
1
Date says inspected 1991. Still reading about the issue and it's a little concerning. Thinking maybe I will contact a local electrician and just have the entire panel replaced.
– Alister55
3 hours ago
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Stab-Lok is a PROBLEM
See, for example, What can I do about a breaker that trips frequently on a Stab-Lok panel?
So first read up on Stab-Lok, post a picture of your panel (the pros will recognize it and tell you if it really is a fire hazard, etc.) and determine if this is a concern. If it is a real concern, then dealing with replacement is a much higher priority than hooking up the Sense monitor.
How it SHOULD Work
On many panels (I don't know if Stab-Lok is supposed to work this way or not), a true double (240V) breaker will always hit both legs. The exception is a double-stuff breaker, where it is really two-breakers-in-one. In that case, it normally only hits one leg, and the exception is if it can actually be 1/2 of one leg and 1/2 of the other leg. But that, as I understand it, is only on certain panels where you can have a quad == 4 in one, but really 4 in 2 - i.e., a double-space breaker that has 4 individual breakers, two on one leg, two on the other leg, with the result that the inner breakers can function together as a "double 240V breaker".
FIRST FIGURE OUT THE STAB-LOK!
answered 8 hours ago
manassehkatzmanassehkatz
12.3k1843
1
I will have a read on the Stab-lok issue to be sure it isn't a fire hazard. Hate the idea of having to replace the panel but better than the house burning down. I would think that it's not a problem since the panel has been inspected but because it's labeled inspected for the garage power maybe they didn't look into this panel. As far as the Sense issue goes, I noticed an circuit image on the inside of the panel cover I pulled off and will look at that and post if I can make sense of it.
– Alister55
3 hours ago
1
"Inspected" can mean: "Inspected at time of initial installation" - which would mean nothing because at the time the hazards were not well known.
– manassehkatz
3 hours ago
1
Date says inspected 1991. Still reading about the issue and it's a little concerning. Thinking maybe I will contact a local electrician and just have the entire panel replaced.
– Alister55
3 hours ago
add a comment |
Stab-Lok is a PROBLEM
See, for example, What can I do about a breaker that trips frequently on a Stab-Lok panel?
So first read up on Stab-Lok, post a picture of your panel (the pros will recognize it and tell you if it really is a fire hazard, etc.) and determine if this is a concern. If it is a real concern, then dealing with replacement is a much higher priority than hooking up the Sense monitor.
How it SHOULD Work
On many panels (I don't know if Stab-Lok is supposed to work this way or not), a true double (240V) breaker will always hit both legs. The exception is a double-stuff breaker, where it is really two-breakers-in-one. In that case, it normally only hits one leg, and the exception is if it can actually be 1/2 of one leg and 1/2 of the other leg. But that, as I understand it, is only on certain panels where you can have a quad == 4 in one, but really 4 in 2 - i.e., a double-space breaker that has 4 individual breakers, two on one leg, two on the other leg, with the result that the inner breakers can function together as a "double 240V breaker".
FIRST FIGURE OUT THE STAB-LOK!
answered 8 hours ago
manassehkatzmanassehkatz
12.3k1843
1
I will have a read on the Stab-lok issue to be sure it isn't a fire hazard. Hate the idea of having to replace the panel but better than the house burning down. I would think that it's not a problem since the panel has been inspected but because it's labeled inspected for the garage power maybe they didn't look into this panel. As far as the Sense issue goes, I noticed an circuit image on the inside of the panel cover I pulled off and will look at that and post if I can make sense of it.
– Alister55
3 hours ago
1
"Inspected" can mean: "Inspected at time of initial installation" - which would mean nothing because at the time the hazards were not well known.
– manassehkatz
3 hours ago
1
Date says inspected 1991. Still reading about the issue and it's a little concerning. Thinking maybe I will contact a local electrician and just have the entire panel replaced.
– Alister55
3 hours ago
add a comment |
Stab-Lok is a PROBLEM
See, for example, What can I do about a breaker that trips frequently on a Stab-Lok panel?
So first read up on Stab-Lok, post a picture of your panel (the pros will recognize it and tell you if it really is a fire hazard, etc.) and determine if this is a concern. If it is a real concern, then dealing with replacement is a much higher priority than hooking up the Sense monitor.
How it SHOULD Work
On many panels (I don't know if Stab-Lok is supposed to work this way or not), a true double (240V) breaker will always hit both legs. The exception is a double-stuff breaker, where it is really two-breakers-in-one. In that case, it normally only hits one leg, and the exception is if it can actually be 1/2 of one leg and 1/2 of the other leg. But that, as I understand it, is only on certain panels where you can have a quad == 4 in one, but really 4 in 2 - i.e., a double-space breaker that has 4 individual breakers, two on one leg, two on the other leg, with the result that the inner breakers can function together as a "double 240V breaker".
FIRST FIGURE OUT THE STAB-LOK!
answered 8 hours ago
manassehkatzmanassehkatz
12.3k1843
Stab-Lok is a PROBLEM
See, for example, What can I do about a breaker that trips frequently on a Stab-Lok panel?
So first read up on Stab-Lok, post a picture of your panel (the pros will recognize it and tell you if it really is a fire hazard, etc.) and determine if this is a concern. If it is a real concern, then dealing with replacement is a much higher priority than hooking up the Sense monitor.
How it SHOULD Work
On many panels (I don't know if Stab-Lok is supposed to work this way or not), a true double (240V) breaker will always hit both legs. The exception is a double-stuff breaker, where it is really two-breakers-in-one. In that case, it normally only hits one leg, and the exception is if it can actually be 1/2 of one leg and 1/2 of the other leg. But that, as I understand it, is only on certain panels where you can have a quad == 4 in one, but really 4 in 2 - i.e., a double-space breaker that has 4 individual breakers, two on one leg, two on the other leg, with the result that the inner breakers can function together as a "double 240V breaker".
FIRST FIGURE OUT THE STAB-LOK!
answered 8 hours ago
manassehkatzmanassehkatz
12.3k1843
answered 8 hours ago
manassehkatzmanassehkatz
12.3k1843
answered 8 hours ago
manassehkatzmanassehkatz
12.3k1843
answered 8 hours ago
manassehkatzmanassehkatz
12.3k1843
12.3k1843
1
I will have a read on the Stab-lok issue to be sure it isn't a fire hazard. Hate the idea of having to replace the panel but better than the house burning down. I would think that it's not a problem since the panel has been inspected but because it's labeled inspected for the garage power maybe they didn't look into this panel. As far as the Sense issue goes, I noticed an circuit image on the inside of the panel cover I pulled off and will look at that and post if I can make sense of it.
– Alister55
3 hours ago
1
"Inspected" can mean: "Inspected at time of initial installation" - which would mean nothing because at the time the hazards were not well known.
– manassehkatz
3 hours ago
1
Date says inspected 1991. Still reading about the issue and it's a little concerning. Thinking maybe I will contact a local electrician and just have the entire panel replaced.
– Alister55
3 hours ago
add a comment |
1
I will have a read on the Stab-lok issue to be sure it isn't a fire hazard. Hate the idea of having to replace the panel but better than the house burning down. I would think that it's not a problem since the panel has been inspected but because it's labeled inspected for the garage power maybe they didn't look into this panel. As far as the Sense issue goes, I noticed an circuit image on the inside of the panel cover I pulled off and will look at that and post if I can make sense of it.
– Alister55
3 hours ago
1
"Inspected" can mean: "Inspected at time of initial installation" - which would mean nothing because at the time the hazards were not well known.
– manassehkatz
3 hours ago
1
Date says inspected 1991. Still reading about the issue and it's a little concerning. Thinking maybe I will contact a local electrician and just have the entire panel replaced.
– Alister55
3 hours ago
1
1
I will have a read on the Stab-lok issue to be sure it isn't a fire hazard. Hate the idea of having to replace the panel but better than the house burning down. I would think that it's not a problem since the panel has been inspected but because it's labeled inspected for the garage power maybe they didn't look into this panel. As far as the Sense issue goes, I noticed an circuit image on the inside of the panel cover I pulled off and will look at that and post if I can make sense of it.
– Alister55
3 hours ago
I will have a read on the Stab-lok issue to be sure it isn't a fire hazard. Hate the idea of having to replace the panel but better than the house burning down. I would think that it's not a problem since the panel has been inspected but because it's labeled inspected for the garage power maybe they didn't look into this panel. As far as the Sense issue goes, I noticed an circuit image on the inside of the panel cover I pulled off and will look at that and post if I can make sense of it.
– Alister55
3 hours ago
1
1
"Inspected" can mean: "Inspected at time of initial installation" - which would mean nothing because at the time the hazards were not well known.
– manassehkatz
3 hours ago
"Inspected" can mean: "Inspected at time of initial installation" - which would mean nothing because at the time the hazards were not well known.
– manassehkatz
3 hours ago
1
1
Date says inspected 1991. Still reading about the issue and it's a little concerning. Thinking maybe I will contact a local electrician and just have the entire panel replaced.
– Alister55
3 hours ago
Date says inspected 1991. Still reading about the issue and it's a little concerning. Thinking maybe I will contact a local electrician and just have the entire panel replaced.
– Alister55
3 hours ago
add a comment |
Alister55 is a new contributor. Be nice, and check out our Code of Conduct.
Alister55 is a new contributor. Be nice, and check out our Code of Conduct.
Alister55 is a new contributor. Be nice, and check out our Code of Conduct.
Alister55 is a new contributor. Be nice, and check out our Code of Conduct.
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1
If it is a 240v (two pole) breaker that is designed for that panel, it should hit both legs. If you test the voltage between the two lugs on the breaker is it 240v?
– JPhi1618
8 hours ago
Added some images to original post.
– Alister55
4 hours ago
Sense Response: we noticed that your Sense power wires are drawing from the same phase, or leg. of your electrical panel. It's possible that the power wires were either installed on a tandem breaker or, if you installed on a 240V breaker, Sense is sitting on two slots that occupy the same phase/leg of the panel. While the 240V breaker does ensure that it draws power from two different slots on the panel, depending on where it is placed, those two slots can be drawing from the same phase. To put it into perspective, this is what the phase pattern of the left side of your panel could look like:
– Alister55
4 hours ago
phase A phase B phase A phase B phase B phase B If your double breaker is attached on a spot where the phase repeats (consecutive phase A), such as towards the bottom, you may run into the issue I've described. I cannot say for sure what your panel phase map is, but you should refer to what is printed on the panel, or reach out to your electrician.
– Alister55
4 hours ago
1
This is a straight up guess, but it looks like all of your other 240v breakers straddle one of those thick lines on the breaker numbering label. So the order of the slots could be AA|BB|AA|BB.
– JPhi1618
4 hours ago