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IndustryArena Forum > CNC Electronics > CNC Machine Related Electronics > 600V 4A Fuse a replacement for 400V 4A

Thread: 600V 4A Fuse a replacement for 400V 4A

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  1. 08-25-2011, 01:34 AM #1
    Skiroy
    Skiroy is offline Registered
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    600V 4A Fuse a replacement for 400V 4A

    We have a dryer thats down because of a fuse and we need it up ASAP.
    We only have a 600V 4A delay fuse when the old one is a 500V 4A fuse.
    Is this okay since they are both 4A?
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  2. 08-25-2011, 03:13 AM #2
    Al_The_Man's Avatar
    Al_The_Man
    Al_The_Man is offline Community Moderator
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    As long as the open circuit voltage is less than 500v then it is OK.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.
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  3. 09-03-2011, 12:44 AM #3
    Skiroy
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    Okay different fuse question.

    I have a 120 VAC to 24VDC Power supply.

    Omron S82K-05024 Power Supply 100-240VAC-24VDC/2.1 Amp | eBay

    Do I need to put a breaker or fuse on the 120 side going to the PSU or on the 24 VDC side coming off of it going to my terminal blocks for input and output devices. Or do I need both?

    This PSU has a a DC on and a DC Low3 light so I dont know if it has built in protection but would I still need to do the the above?
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  4. 09-04-2011, 06:12 PM #4
    Al_The_Man's Avatar
    Al_The_Man
    Al_The_Man is offline Community Moderator
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    I usually fit both, but the 120v side would be fused, minimum.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.
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