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Thread: Fuse

  1. #1
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    Fuse

    What size fuse should I use between my battery and dc power supply?

  2. #2
    Maximum Bitrate JimmyFitz's Avatar
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    depends...

    What power supply will you be using? Look in the manual for it to determine the amperage needed. That will also be a consideration as to what size wire to run.


    See the FAQ's, specifically this one:
    http://www.mp3car.com/vbulletin/advf...iew&advfaqid=5
    ~Jimmy

  3. #3
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    I am using a OPUS 250W/320W Intelligent DC-DC PSU, but nowhere in the supplied literature does it state the amperage.

  4. #4
    Fusion Brain Creator 2k1Toaster's Avatar
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    P = V x I
    [Watts] = [Volts] x [Amps]
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

  5. #5
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    Thanks for all the input. The answer I came up with was 15 amp. Does that sound correct?

  6. #6
    Fusion Brain Creator 2k1Toaster's Avatar
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    250W is 20A and 320W is 27A. You dont have a 250W/320W you have one or the other.

    And usually you take 115% of the value.
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

  7. #7
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    how do I know which wattage it is, because the description says both?

  8. #8
    Fusion Brain Creator 2k1Toaster's Avatar
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    Quote Originally Posted by jasonobrown View Post
    how do I know which wattage it is, because the description says both?
    The description is for both. But when you order, there is a dropdown for the 320W for additional money. Obviously you dont pay the same price for more wattage. You should know what you buy.
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

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