Safety hook on double pole circuit breakers












2














My home was built two years ago, so I would expect everything to have been done up to code. The problem is that I don't know what the metal ring in this photo is. It loops over the double pole circuit breakers, but only if in the off position. When hooked over the circuit breakers, the metal ring appears to prevent them from being pushed into the on position. The problem is, if the circuit breakers are turned on, and the metal ring were to flip over (it's fairly free to rotate), then the circuit breakers are prevented from flipping into the off position. Isn't this a valid safety concern? Yet I am confused because the hooks on these circuit breakers appear to be made to do this as seen by the hooks I have pointed out via green arrows (green speckles follow the loop I am talking about).



I am seeking to learn:




  1. What is this gizmo named?

  2. Is my safety concern valid?


loop










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  • you failed to notice another hardware component and you have not noticed the label .... look again
    – jsotola
    3 hours ago
















2














My home was built two years ago, so I would expect everything to have been done up to code. The problem is that I don't know what the metal ring in this photo is. It loops over the double pole circuit breakers, but only if in the off position. When hooked over the circuit breakers, the metal ring appears to prevent them from being pushed into the on position. The problem is, if the circuit breakers are turned on, and the metal ring were to flip over (it's fairly free to rotate), then the circuit breakers are prevented from flipping into the off position. Isn't this a valid safety concern? Yet I am confused because the hooks on these circuit breakers appear to be made to do this as seen by the hooks I have pointed out via green arrows (green speckles follow the loop I am talking about).



I am seeking to learn:




  1. What is this gizmo named?

  2. Is my safety concern valid?


loop










share|improve this question







New contributor




mh00h is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • you failed to notice another hardware component and you have not noticed the label .... look again
    – jsotola
    3 hours ago














2












2








2







My home was built two years ago, so I would expect everything to have been done up to code. The problem is that I don't know what the metal ring in this photo is. It loops over the double pole circuit breakers, but only if in the off position. When hooked over the circuit breakers, the metal ring appears to prevent them from being pushed into the on position. The problem is, if the circuit breakers are turned on, and the metal ring were to flip over (it's fairly free to rotate), then the circuit breakers are prevented from flipping into the off position. Isn't this a valid safety concern? Yet I am confused because the hooks on these circuit breakers appear to be made to do this as seen by the hooks I have pointed out via green arrows (green speckles follow the loop I am talking about).



I am seeking to learn:




  1. What is this gizmo named?

  2. Is my safety concern valid?


loop










share|improve this question







New contributor




mh00h is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











My home was built two years ago, so I would expect everything to have been done up to code. The problem is that I don't know what the metal ring in this photo is. It loops over the double pole circuit breakers, but only if in the off position. When hooked over the circuit breakers, the metal ring appears to prevent them from being pushed into the on position. The problem is, if the circuit breakers are turned on, and the metal ring were to flip over (it's fairly free to rotate), then the circuit breakers are prevented from flipping into the off position. Isn't this a valid safety concern? Yet I am confused because the hooks on these circuit breakers appear to be made to do this as seen by the hooks I have pointed out via green arrows (green speckles follow the loop I am talking about).



I am seeking to learn:




  1. What is this gizmo named?

  2. Is my safety concern valid?


loop







electrical electrical-panel circuit-breaker






share|improve this question







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mh00h is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question







New contributor




mh00h is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question






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asked 3 hours ago









mh00h

1112




1112




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mh00h is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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Check out our Code of Conduct.












  • you failed to notice another hardware component and you have not noticed the label .... look again
    – jsotola
    3 hours ago


















  • you failed to notice another hardware component and you have not noticed the label .... look again
    – jsotola
    3 hours ago
















you failed to notice another hardware component and you have not noticed the label .... look again
– jsotola
3 hours ago




you failed to notice another hardware component and you have not noticed the label .... look again
– jsotola
3 hours ago










1 Answer
1






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This is a breaker lockoff device



The gizmo on your water heater breaker is a lockoff that's designed to let you turn the breaker off, then attach a padlock (or a lockout tag with padlock(s) on it), so that you can then stick the key in your pocket and be sure that no bozo is going to flip the breaker back on while you are servicing the water heater.



And no, it won't screw up the breaker's ability to trip



Modern circuit breakers are universally trip free (I believe UL489 and related standards require this behavior, even), which means that they will trip properly, no matter what position the handle is held in. As a result, it is possible (and even required, for breakers feeding fire alarm control panels in larger buildings) to safely lock a breaker on with the appropriate hardware, even, and you do not have to worry about mechanical blockages outside the breaker itself keeping the breaker from tripping.






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    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    3














    This is a breaker lockoff device



    The gizmo on your water heater breaker is a lockoff that's designed to let you turn the breaker off, then attach a padlock (or a lockout tag with padlock(s) on it), so that you can then stick the key in your pocket and be sure that no bozo is going to flip the breaker back on while you are servicing the water heater.



    And no, it won't screw up the breaker's ability to trip



    Modern circuit breakers are universally trip free (I believe UL489 and related standards require this behavior, even), which means that they will trip properly, no matter what position the handle is held in. As a result, it is possible (and even required, for breakers feeding fire alarm control panels in larger buildings) to safely lock a breaker on with the appropriate hardware, even, and you do not have to worry about mechanical blockages outside the breaker itself keeping the breaker from tripping.






    share|improve this answer


























      3














      This is a breaker lockoff device



      The gizmo on your water heater breaker is a lockoff that's designed to let you turn the breaker off, then attach a padlock (or a lockout tag with padlock(s) on it), so that you can then stick the key in your pocket and be sure that no bozo is going to flip the breaker back on while you are servicing the water heater.



      And no, it won't screw up the breaker's ability to trip



      Modern circuit breakers are universally trip free (I believe UL489 and related standards require this behavior, even), which means that they will trip properly, no matter what position the handle is held in. As a result, it is possible (and even required, for breakers feeding fire alarm control panels in larger buildings) to safely lock a breaker on with the appropriate hardware, even, and you do not have to worry about mechanical blockages outside the breaker itself keeping the breaker from tripping.






      share|improve this answer
























        3












        3








        3






        This is a breaker lockoff device



        The gizmo on your water heater breaker is a lockoff that's designed to let you turn the breaker off, then attach a padlock (or a lockout tag with padlock(s) on it), so that you can then stick the key in your pocket and be sure that no bozo is going to flip the breaker back on while you are servicing the water heater.



        And no, it won't screw up the breaker's ability to trip



        Modern circuit breakers are universally trip free (I believe UL489 and related standards require this behavior, even), which means that they will trip properly, no matter what position the handle is held in. As a result, it is possible (and even required, for breakers feeding fire alarm control panels in larger buildings) to safely lock a breaker on with the appropriate hardware, even, and you do not have to worry about mechanical blockages outside the breaker itself keeping the breaker from tripping.






        share|improve this answer












        This is a breaker lockoff device



        The gizmo on your water heater breaker is a lockoff that's designed to let you turn the breaker off, then attach a padlock (or a lockout tag with padlock(s) on it), so that you can then stick the key in your pocket and be sure that no bozo is going to flip the breaker back on while you are servicing the water heater.



        And no, it won't screw up the breaker's ability to trip



        Modern circuit breakers are universally trip free (I believe UL489 and related standards require this behavior, even), which means that they will trip properly, no matter what position the handle is held in. As a result, it is possible (and even required, for breakers feeding fire alarm control panels in larger buildings) to safely lock a breaker on with the appropriate hardware, even, and you do not have to worry about mechanical blockages outside the breaker itself keeping the breaker from tripping.







        share|improve this answer












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        share|improve this answer










        answered 2 hours ago









        ThreePhaseEel

        30.1k104590




        30.1k104590






















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