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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Description Price Primary Voltage Rating Secondary Voltage Rating Power Rating Mounting Type Knob Rotation Number of Phases Number of Outputs Termination Type Weight Dimensions Secondary Current Depth Diameter Length
RS Stock No. 890-2844
BrandRS Pro
PHP14,740.08
Each
units
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
RS Stock No. 890-2869
BrandRS Pro
PHP69,993.05
Each
units
415V 0 → 415 V, 0 → 470 V 16.3kVA Surface Mount Clockwise 3 3 Wire Termination 50.1kg 250 x 300 x 445mm 20A 445mm - 250mm
RS Stock No. 122-6783
Mfr. Part No.MVT14.7k/18A-3E
PHP69,804.90
Each
units
415V - 14.7kVA Free Standing - 3 - Clamp - 285 x 280 x 690mm - 690mm - 285mm
RS Stock No. 890-2856
BrandRS Pro
PHP15,840.98
Each
units
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 Stock No. 890-2825
BrandRS Pro
PHP32,482.46
Each
units
240V 0 → 240 V, 0 → 270 V 6.72kVA Surface Mount Clockwise 1 1 Wire Termination 25kg 300 x 300 x 225mm 28A 225mm - 300mm
RS Stock No. 890-2793
BrandRS Pro
PHP5,516.39
Each
units
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 Stock No. 890-2853
BrandRS Pro
PHP41,086.24
Each
units
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 Stock No. 890-2838
BrandRS Pro
PHP12,504.70
Each
units
240V 0 → 240V 960VA Surface Mount Clockwise 1 1 Wire Termination 5.6kg 165 x 165 x 120mm 4A 120mm 165mm 165mm
RS Stock No. 117-6016
Mfr. Part No.MVT2.5k/9A-1
PHP8,590.11
Each
units
240V - 2.5kVA Panel Mount Clockwise 1 1 Clamp 15kg 185 (Dia.) x 174mm - - 185mm 174mm
RS Stock No. 890-2872
BrandRS Pro
PHP35,265.24
Each
units
240V ac 0 → 240V ac 2.4kVA Stand Alone Clockwise 1 - Wire Termination 12kg 270 x 210 x 200mm 10A 200mm - 270mm
RS Stock No. 890-2774
BrandRS Pro
PHP4,673.40
Each
units
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 Stock No. 890-2806
BrandRS Pro
PHP13,396.32
Each
units
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 Stock No. 890-2862
BrandRS Pro
PHP17,618.12
Each
units
240V ac 0 → 240V ac 720VA Stand Alone Clockwise 1 - Wire Termination 6kg 230 x 140 x 140mm 3A 140mm - 230mm
RS Stock No. 117-6018
Mfr. Part No.MVT4.9k/18A-1
PHP14,931.49
Each
units
240V - 4.9kVA Panel Mount Clockwise 1 1 Clamp 23kg 205 (Dia.) x 203mm - - 205mm 203mm
RS Stock No. 890-2850
BrandRS Pro
PHP42,257.26
Each
units
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 Stock No. 890-2890
BrandRS Pro
PHP263.10
Each
units
- - - Surface Mount - - - Wire Termination 7g 9.5 x 2.5 x 14mm - 14mm - 9.5mm
RS Stock No. 890-2822
BrandRS Pro
PHP4,878.58
Each
units
240V 0 → 240V 360VA Surface Mount Clockwise 1 1 Wire Termination 2.6kg 113 x 130 x 127mm 1.5A 127mm 113mm 113mm
RS Stock No. 122-6781
Mfr. Part No.MVT4.2k/5A-3E
PHP44,304.30
Each
units
415V - 4.2kVA Free Standing - 3 - Clamp - 245 x 250 x 595mm - - - 245mm
RS Stock No. 890-2866
BrandRS Pro
PHP19,432.37
Each
units
240V ac - 1.2kVA Stand Alone Clockwise 1 - Wire Termination 10kg 280 x 200 x 200mm 5A 200mm - 280mm
RS Stock No. 890-2831
BrandRS Pro
PHP5,021.69
Each
units
240V 0 → 240V 480VA Surface Mount Clockwise 1 1 Wire Termination 3.1kg 113 x 130 x 127mm 2A 127mm 113mm 113mm
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