Help identify this breaker

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











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I salvaged this breaker unit from the scrape yard. Compared to every other breakers i have seen before, this is very different. It has 5 terminals.



enter image description here



enter image description here



enter image description here



enter image description here



The labels are very clear but there is no information about the usage of its terminals. The terminals are labelled A, B and C. Its not even labelled clearly which side is load and which side is line.



The greatest mystery is the terminal C. What is it's purpose and how is it used?






circuit-breaker







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    up vote
    1
    down vote

    favorite












    I salvaged this breaker unit from the scrape yard. Compared to every other breakers i have seen before, this is very different. It has 5 terminals.



    enter image description here



    enter image description here



    enter image description here



    enter image description here



    The labels are very clear but there is no information about the usage of its terminals. The terminals are labelled A, B and C. Its not even labelled clearly which side is load and which side is line.



    The greatest mystery is the terminal C. What is it's purpose and how is it used?






    circuit-breaker







    share|improve this question

























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      I salvaged this breaker unit from the scrape yard. Compared to every other breakers i have seen before, this is very different. It has 5 terminals.



      enter image description here



      enter image description here



      enter image description here



      enter image description here



      The labels are very clear but there is no information about the usage of its terminals. The terminals are labelled A, B and C. Its not even labelled clearly which side is load and which side is line.



      The greatest mystery is the terminal C. What is it's purpose and how is it used?






      circuit-breaker







      share|improve this question















      I salvaged this breaker unit from the scrape yard. Compared to every other breakers i have seen before, this is very different. It has 5 terminals.



      enter image description here



      enter image description here



      enter image description here



      enter image description here



      The labels are very clear but there is no information about the usage of its terminals. The terminals are labelled A, B and C. Its not even labelled clearly which side is load and which side is line.



      The greatest mystery is the terminal C. What is it's purpose and how is it used?






      circuit-breaker




      circuit-breaker






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 1 hour ago

























      asked 2 hours ago









      soosai steven

      1,4161511




      1,4161511




















          2 Answers
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          It's an interesting type of circuit breaker, a Hydraulic-Magnetic. See the catalog here.



          Hydraulic-Magnetic circuit breaker



          Anyway, the third pin is actually for a trip coil. Which is a coil when energized, will trip the circuit breaker. Ther are most often found as clip-on units for rail circuit breakers. But this one has it integrated.



          shunt/trapenter image description here



          Different catalog.






          share|improve this answer



























            up vote
            1
            down vote













            See the diagram on the lower-left of page 19 of this document. Your breaker would appear to be a "dual rating" type, in which an overload on either of the B or C ("load") terminals will open the circuit to both.



            Terminal A would be the "line" connection.






            share|improve this answer




















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              2 Answers
              2






              active

              oldest

              votes








              2 Answers
              2






              active

              oldest

              votes









              active

              oldest

              votes






              active

              oldest

              votes








              up vote
              3
              down vote













              It's an interesting type of circuit breaker, a Hydraulic-Magnetic. See the catalog here.



              Hydraulic-Magnetic circuit breaker



              Anyway, the third pin is actually for a trip coil. Which is a coil when energized, will trip the circuit breaker. Ther are most often found as clip-on units for rail circuit breakers. But this one has it integrated.



              shunt/trapenter image description here



              Different catalog.






              share|improve this answer
























                up vote
                3
                down vote













                It's an interesting type of circuit breaker, a Hydraulic-Magnetic. See the catalog here.



                Hydraulic-Magnetic circuit breaker



                Anyway, the third pin is actually for a trip coil. Which is a coil when energized, will trip the circuit breaker. Ther are most often found as clip-on units for rail circuit breakers. But this one has it integrated.



                shunt/trapenter image description here



                Different catalog.






                share|improve this answer






















                  up vote
                  3
                  down vote










                  up vote
                  3
                  down vote









                  It's an interesting type of circuit breaker, a Hydraulic-Magnetic. See the catalog here.



                  Hydraulic-Magnetic circuit breaker



                  Anyway, the third pin is actually for a trip coil. Which is a coil when energized, will trip the circuit breaker. Ther are most often found as clip-on units for rail circuit breakers. But this one has it integrated.



                  shunt/trapenter image description here



                  Different catalog.






                  share|improve this answer












                  It's an interesting type of circuit breaker, a Hydraulic-Magnetic. See the catalog here.



                  Hydraulic-Magnetic circuit breaker



                  Anyway, the third pin is actually for a trip coil. Which is a coil when energized, will trip the circuit breaker. Ther are most often found as clip-on units for rail circuit breakers. But this one has it integrated.



                  shunt/trapenter image description here



                  Different catalog.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered 1 hour ago









                  Jeroen3

                  10.2k1444




                  10.2k1444






















                      up vote
                      1
                      down vote













                      See the diagram on the lower-left of page 19 of this document. Your breaker would appear to be a "dual rating" type, in which an overload on either of the B or C ("load") terminals will open the circuit to both.



                      Terminal A would be the "line" connection.






                      share|improve this answer
























                        up vote
                        1
                        down vote













                        See the diagram on the lower-left of page 19 of this document. Your breaker would appear to be a "dual rating" type, in which an overload on either of the B or C ("load") terminals will open the circuit to both.



                        Terminal A would be the "line" connection.






                        share|improve this answer






















                          up vote
                          1
                          down vote










                          up vote
                          1
                          down vote









                          See the diagram on the lower-left of page 19 of this document. Your breaker would appear to be a "dual rating" type, in which an overload on either of the B or C ("load") terminals will open the circuit to both.



                          Terminal A would be the "line" connection.






                          share|improve this answer












                          See the diagram on the lower-left of page 19 of this document. Your breaker would appear to be a "dual rating" type, in which an overload on either of the B or C ("load") terminals will open the circuit to both.



                          Terminal A would be the "line" connection.







                          share|improve this answer












                          share|improve this answer



                          share|improve this answer










                          answered 1 hour ago









                          Dave Tweed♦

                          114k9137246




                          114k9137246



























                               

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