Variacs

Variacs are also known as autotransformers and are a speciality type of the electrical transformer that consists only one winding. The winding acts as both primary and secondary sides of the transformer. The ordinary type of transformers have 2 coils instead and they are not electrically connected. The one winding resolution allows for producing a smaller, lighter and cheaper transformers than ordinary 2 winding ones. They also feature lower leakage reactance, lower losses lower excitation current and increased VA rating for a given size and mass. At the other side, the disadvantage is a lack any electrical insulation between circuits. It can result in full input voltage applied to the output.
Variacs/Autotransformers are commonly used for:
• Power transmission and distribution – Variacs ensure that voltage at the beginning of the power distribution line is equivalent to the voltage at the end of the line.
• Power conversions – Variacs are able to convert common domestic mains voltage bands that are in use across the world. For example 200 V to 250 V or 100 V to 130V.
• Audio systems – Autotransformers are used to adapt speakers to constant- voltage distribution and for matching impendence levels.

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Beskrivning Pris Primary Voltage Rating Secondary Voltage Rating Power Rating Mounting Type Knob Rotation Number of Phases Number of Outputs Termination Type Weight Dimensions Primary Current Rating Depth Diameter Length
RS-artikelnummer 890-2774
VarumärkeRS PRO
1 352,68 kr
Each
Enheter
240V 0 → 240 V, 0 → 270 V 480VA Surface Mount Clockwise 1 1 Wire Termination 2.9kg 110 x 110 x 95mm 2A 95mm - 110mm
RS-artikelnummer 890-2793
VarumärkeRS PRO
1 644,39 kr
Each
Enheter
240V 0 → 240 V, 0 → 270 V 480VA Surface Mount Clockwise 1 1 Wire Termination 3.8kg 160 x 130 x 160mm 2A 160mm - 160mm
RS-artikelnummer 890-2803
VarumärkeRS PRO
2 160,44 kr
Each
Enheter
240V 0 → 240 V, 0 → 270 V 720VA Surface Mount Clockwise 1 1 Wire Termination 4.3kg 160 x 130 x 160mm 3A 160mm - 160mm
RS-artikelnummer 890-2853
VarumärkeRS PRO
8 917,11 kr
Each
Enheter
415V 0 → 415 V, 0 → 470 V 8.14kVA Surface Mount Clockwise 3 3 Wire Termination 27kg 175 x 175 x 410mm 10A 410mm - 175mm
RS-artikelnummer 890-2812
VarumärkeRS PRO
5 670,46 kr
Each
Enheter
240V 0 → 240 V, 0 → 270 V 3.6kVA Surface Mount Clockwise 1 1 Wire Termination 14kg 225 x 225 x 190mm 15A 190mm - 225mm
RS-artikelnummer 890-2777
VarumärkeRS PRO
1 849,93 kr
Each
Enheter
240V 0 → 240 V, 0 → 270 V 720VA Surface Mount Clockwise 1 1 Wire Termination 3.5kg 110 x 110 x 115mm 3A 115mm - 110mm
RS-artikelnummer 890-2850
VarumärkeRS PRO
11 292,19 kr
Each
Enheter
415V 0 → 415 V, 0 → 470 V 8.14kVA Surface Mount Clockwise 3 3 Wire Termination 33.5kg 200 x 250 x 425mm 10A 425mm - 200mm
RS-artikelnummer 890-2888
VarumärkeRS PRO
19,75 kr
Each
Enheter
- - - Surface Mount - - - Wire Termination 5g 10.5 x 3mm - 3mm 10.5mm -
RS-artikelnummer 890-2872
VarumärkeRS PRO
8 735,29 kr
Each
Enheter
240V ac 0 → 240V ac 2.4kVA Stand Alone Clockwise 1 - Wire Termination 12kg 270 x 210 x 200mm 10A 200mm - 270mm
RS-artikelnummer 890-2834
VarumärkeRS PRO
1 959,12 kr
Each
Enheter
240V 0 → 240V 720VA Surface Mount Clockwise 1 1 Wire Termination 3.5kg 113 x 130 x 127mm 3A 127mm 116mm 113mm
RS-artikelnummer 890-2806
VarumärkeRS PRO
3 096,93 kr
Each
Enheter
240V 0 → 240 V, 0 → 270 V 1.2kVA Surface Mount Clockwise 1 1 Wire Termination 8.8kg 175 x 175 x 140mm 5A 140mm - 175mm
RS-artikelnummer 890-2771
VarumärkeRS PRO
2 391,13 kr
Each
Enheter
240V 0 → 240 V, 0 → 270 V 1.2kVA Surface Mount Clockwise 1 1 Wire Termination 6kg 175 x 175 x 102mm 5A 102mm - 175mm
RS-artikelnummer 890-2796
VarumärkeRS PRO
5 793,09 kr
Each
Enheter
240V 0 → 240 V, 0 → 270 V 4.8kVA Surface Mount Clockwise 1 1 Wire Termination 13.8kg 225 x 225 x 135mm 20A 135mm - 225mm
RS-artikelnummer 890-2856
VarumärkeRS PRO
4 722,51 kr
Each
Enheter
415V 0 → 415 V, 0 → 470 V 1.628kVA Surface Mount Clockwise 3 3 Wire Termination 12.9kg 150 x 200 x 330mm 2A 330mm - 150mm
RS-artikelnummer 890-2840
VarumärkeRS PRO
2 484,39 kr
Each
Enheter
240V 0 → 240V 1.92kVA Surface Mount Clockwise 1 1 Wire Termination 7.8kg 165 x 165 x 140mm 8A 140mm 165mm 165mm
RS-artikelnummer 890-2816
VarumärkeRS PRO
5 934,82 kr
Each
Enheter
240V 0 → 240 V, 0 → 270 V 4.8kVA Surface Mount Clockwise 1 1 Wire Termination 15.3kg 225 x 225 x 190mm 20A 190mm - 225mm
RS-artikelnummer 890-2890
VarumärkeRS PRO
67,00 kr
Each
Enheter
- - - Surface Mount - - - Wire Termination 7g 9.5 x 2.5 x 14mm - 14mm - 9.5mm
RS-artikelnummer 890-2862
VarumärkeRS PRO
4 559,32 kr
Each
Enheter
240V ac 0 → 240V ac 720VA Stand Alone Clockwise 1 - Wire Termination 6kg 230 x 140 x 140mm 3A 140mm - 230mm
RS-artikelnummer 890-2884
VarumärkeRS PRO
12 623,59 kr
Each
Enheter
240V ac - 2.4kVA Stand Alone Clockwise 1 - Wire Termination 12kg 270 x 210 x 200mm 10A 200mm - 270mm
RS-artikelnummer 890-2844
VarumärkeRS PRO
3 367,63 kr
Each
Enheter
415V 0 → 415 V, 0 → 470 V 1.628kVA Surface Mount Clockwise 3 3 Wire Termination 9.1kg 110 x 110 x 330mm 2A 330mm - 110mm
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