An autotransformer is a transformer with only one winding, which is wrapped around a set of core pieces. This winding acts both as the primary winding and the secondary winding of the transformer. Instead of having separate primary and secondary windings like a standard two-winding transformer, an autotransformer has only one winding and the voltage is stepped up or down as required. Autotransformers are generally much lighter, less expensive, and more space efficient than two-winding voltage transformers. They are commonly used to provide voltage adjustment in electric power distribution networks, and for things such as impedance matching for antenna designs and audio applications.

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    ESS 102


    Variable autotransformer; 230VAC; Uout:1÷250V; 2A; 2.4kg
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    Thalheimer-Trafowerke 22
    Ships to you
    between Fri. 31 Mar to Thu. 06 Apr
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    USD 186.5577

    Multiples of: 1

           
    GSD-1000


    Autotransformers Auto 230V/115V
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    Stancor 12
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    between Fri. 31 Mar to Thu. 06 Apr
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    USD 189.3213

    Multiples of: 1

    1000 VA115 v / 230 V Chassis96.77 mm153.92 mm117.6 mm
    N-5M


    Autotransformers Power Transformer, AutoTransformer, 230/115VAC, 250 V A Rating, Step-Up/Step-Down
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    Triad 8
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    between Fri. 31 Mar to Thu. 06 Apr
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    USD 141.4949

    Multiples of: 1

           
    170F


    Autotransformers 1000VA 230/115
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    Hammond 7
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    between Thu. 06 Apr to Mon. 10 Apr
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    USD 189.3937

    Multiples of: 1

    1 kVA115 V Chassis95.3 mm139.7 mm115.8 mm
    OIEA6


    Variable autotransformer; 230VAC; Uout:0÷260V; 5A; 6.8kg
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    Breve Tufvassons 6
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    between Fri. 31 Mar to Thu. 06 Apr
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    USD 209.7049

    Multiples of: 1

           
    KIEA15


    Variable autotransformer; 230VAC; Uout:0÷260V; 12A; 15.5kg
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    Breve Tufvassons 4
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    between Fri. 31 Mar to Thu. 06 Apr
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    USD 582.0822

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    ESS 110


    Variable autotransformer; 230VAC; Uout:1÷250V; 10A; 7.8kg
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    Thalheimer-Trafowerke 3
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    between Fri. 31 Mar to Thu. 06 Apr
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    USD 270.6564

    Multiples of: 1

           
    176B


    Autotransformers Plug-In/Step-Up Auto 200VA, 115-230VAC
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    Hammond 2
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    between Thu. 06 Apr to Mon. 10 Apr
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    USD 115.4081

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    200 VA   3.81 in80.26 mm96.77 mm
    ARM-3.0/1


    Variable autotransformer; 230VAC; 3A; 1.9kg
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    Breve Tufvassons 1
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    between Fri. 31 Mar to Thu. 06 Apr
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    USD 92.9334

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    176E


    Autotransformers Plug-In/Step-Up Auto 750VA, 115-230VAC
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    Hammond 1
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    between Fri. 31 Mar to Thu. 06 Apr
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    USD 235.305

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    750 VA   4.68 in7.06 in3.8 in