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Blown fuse protective devices

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    Blown fuse protective devices

    On which of the following pieces of equipment would you most likely NOT find a blown fuse protective device?

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  3. Kmcphatter is offline Junior Member Pro Subscriber
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    MCCB... Look at the other answers in that question. They are all fused...

    Quote Originally Posted by Balima View Post
    On which of the following pieces of equipment would you most likely NOT find a blown fuse protective device?

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  5. kchenoweth is offline Junior Member Pro Subscriber
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    Quote Originally Posted by Balima View Post
    On which of the following pieces of equipment would you most likely NOT find a blown fuse protective device?
    What are the choices?

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    Quote Originally Posted by Kmcphatter View Post
    MCCB... Look at the other answers in that question. They are all fused...
    I answered MCCB and was counted incorrect, I don't recall all the answers. I believe it may be the 3000A bolted CB?

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    Quote Originally Posted by Akumanchik View Post
    I answered MCCB and was counted incorrect, I don't recall all the answers. I believe it may be the 3000A bolted CB?
    apperently it is not the 3000A CB either

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    Quote Originally Posted by Balima View Post
    On which of the following pieces of equipment would you most likely NOT find a blown fuse protective device?
    Which of the following is LEAST likely to contain a blown fuse trip device? Ans.
    A. molded case circuit breaker
    B. 360 amp 4.16 KV motor starter
    C. low voltage power circuit breaker
    D. 200 amp fused safety switch
    E. none of the above

    According to this question saved by our question database, D) 200A Fused Safety Switch is the answer

    which makes sense, since the safety switch would typically be upstream of other devices, making it less likely to blow.

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    Quote Originally Posted by Kalbi_Rob View Post
    Which of the following is LEAST likely to contain a blown fuse trip device? Ans.
    A. molded case circuit breaker
    B. 360 amp 4.16 KV motor starter
    C. low voltage power circuit breaker
    D. 200 amp fused safety switch
    E. none of the above

    According to this question saved by our question database, D) 200A Fused Safety Switch is the answer

    which makes sense, since the safety switch would typically be upstream of other devices, making it less likely to blow.
    Agree, its doubtful you will find a blown fuse protection device on a tiny 200A fused safety switch. Finding them on MCCB's is probably becoming less-common as well.

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    On which of the following pieces of equipment would you most likely NOT find a blown

    All the other devices could have (but don't have to use fuses) fuses. I have never seen a fuse used with a Molded case breaker. So, the Molded case breaker should be the answer.

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    Quote Originally Posted by fdotson View Post
    I have never seen a fuse used with a Molded case breaker. So, the Molded case breaker should be the answer.
    Look up Tri-Pac molded case breakers. Just because you haven't seen it doesn't mean it doesn't exist.

    Click image for larger version. 

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  19. TestingProToBe is offline Junior Member Pro Subscriber
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    Quote Originally Posted by Kalbi_Rob View Post
    Which of the following is LEAST likely to contain a blown fuse trip device? Ans.
    A. molded case circuit breaker
    B. 360 amp 4.16 KV motor starter
    C. low voltage power circuit breaker
    D. 200 amp fused safety switch
    E. none of the above

    According to this question saved by our question database, D) 200A Fused Safety Switch is the answer

    which makes sense, since the safety switch would typically be upstream of other devices, making it less likely to blow.
    This was a tricky one! I missed it because of the wording, now that I look at it again it makes sense. Here is my thinking.
    Fused disconnects donít have electrical trips, at least I havenít seen one, only breakers do. So with that info right there the fusable disconnect makes the most sense.

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