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Thread: Replacing a Rayburn ignition transformer

  1. #1

    Default Replacing a Rayburn ignition transformer

    Is there anyone knowledgeable in ignition transformers?

    I have an oil fired Rayburn and the ignition transformer needs replacing. There is a massive difference in price for the same make of transformer. There is only one difference in the spec of the 2 transformers which I donít really understand the consequences of using the cheaper one

    The one being used says 25% su 4í
    The cheap one says. 35% su 4í

    All other specs are the same. I.e 240v. 20mA. 14kv

    Any guidance would be a help

  2. #2
    Join Date
    Dec 2008
    Location
    wick
    Posts
    1,080

    Default

    su simply refers its duty cycle
    a greater number is better [more reliable]

    simple to change but be very careful theres about +8000 volts flying around

    the ones rayburn supply are very expensive for what they are.

    done several over the years
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