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125VDC Universal AVR replaces EA05AF, KR7FF, APR125-5, 3H18020A

$219.00

231
  • Part #: VR1808-A
  • 5 Units in Stock

    New Lower Price!  Replaces VR1808FW

     Dealers & volume users contact us for even lower prices!

     Click Here to view VR1808FW Manual

    Click Here to View VR1808FW Wiring Diagram

    WARNING: DO NOT ORDER this if you are not sure if it is the correct one for your application, or if you, (or the person you plan to have install it) are not trained or familiar with generators.
    High voltage can cause injury or death!

    Please call or e-mail if you aneed help!
    Call 717-274-9396 for tech support or e-mail: parts@partsfortechs.com


    Replaces most Generac PTO regulators with better performance than the original! Flight Systems Model 808

    Output to exciter field is 7.5 amps DC max. If heat sink has adequate cooling, you may be able to use on applications up to 10 amps.  Preferable location is in the path of the fresh air intake (at the rear of most generators) - especially if you will exceed 7.5 amps.


    Can replace a Basler SR8-A (SR8A) if you do not need all of the fancy extras like 3 phase sensing, paralleling provisions, or 400 Hz operation.
    Will also replace a Basler KR7F and Basler
    APR125-5 series in many cases.
    Also replaces Delco 3H18000 series AVR's such as 3H18020A.

    Replaces the following obsolete Generac voltage regulators with minor modifications, please contact us with any questions.

    • 47509 (047509)
    • 50363 (050363)
    • 50074 (050074)
    • 0500740SRV


    This full wave voltage regulator has a 25 amp, 1200 volt (PIV) power module mounted on a heat sink, de-rated to 7 amps for long life. Requires input of 180-277 VAC for power & sensing.

    Can be used on a 480 volt 12 lead generator if machine is wired in center of the WYE at T7, T8, and T9, etc. You can power off any two of those lines if there is approx 220 - 250 volts available there. (You cannot sense direct 480 volt power, but you can use a transformer from 480 > 240 if you wish)

    All sales final.


    NOTICE: High Voltage can be harmful or fatal!
    By purchasing or installing this or any voltage regulator from Advanced Service And Parts, LLC, you agree to be responsible for the installation and application. The voltage regulator should be installed by a qualified generator technician.
    Advanced Service And Parts, LLC will not be responsible for any incidental or consequential damages or personal injury. Our liability is limited to repair or replacement of the regulator if found defective. We do not manufacture these or any voltage regulator on our site; they are made by various manufacturers.

  • Part #: VR1808-A
  • 5 Units in Stock



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