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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รายละเอียดสินค้า / Description ราคา / 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. 890-2765
Brand :RS PRO
THB2,768.06
Each
Units
240V 0 → 240 V, 0 → 270 V 170VA Surface Mount Clockwise 1 1 Wire Termination 1.4kg 83 x 80mm 700mA 96mm 83mm 80mm
RS Stock No. 890-2793
Brand :RS PRO
THB4,721.02
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. 117-6012
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVT0.3/1.1A-1
THB3,806.90
Each
Units
240V - 300VA Panel Mount Clockwise 1 1 Clamp 5kg 103 (Dia.) x 172mm - - 103mm 172mm
RS Stock No. 890-2819
Brand :RS PRO
THB9,334.14
Each
Units
240V 0 → 240 V, 0 → 270 V 2.4kVA Surface Mount Clockwise 1 1 Wire Termination 9.4kg 175 x 175 x 170mm 10A 170mm - 175mm
RS Stock No. 117-6014
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVT1k/3.5A-1
THB3,447.55
Each
Units
240V - 1kVA Panel Mount Clockwise 1 1 Clamp 8kg 155 (Dia.) x 176mm - - 155mm 176mm
RS Stock No. 890-2828
Brand :RS PRO
THB2,568.66
Each
Units
240V 0 → 240V 240VA Surface Mount Clockwise 1 1 Wire Termination 1.6kg 86 x 99 x 110mm 1A 110mm 87mm 113mm
RS Stock No. 890-2838
Brand :RS PRO
THB5,553.19
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. 890-2856
Brand :RS PRO
THB11,845.58
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. 117-6017
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVT3.3k/12A-1
THB6,913.96
Each
Units
240V - 3.3kVA Panel Mount Clockwise 1 1 Clamp 18kg 205 (Dia.) x 178mm - - 205mm 178mm
RS Stock No. 117-6015
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVT1.4k/5A-1
THB4,231.43
Each
Units
240V - 1.4kVA Panel Mount Clockwise 1 1 Clamp 11kg 170 (Dia.) x 176mm - - 170mm 176mm
RS Stock No. 890-2799
Brand :RS PRO
THB3,265.66
Each
Units
240V 0 → 240 V, 0 → 270 V 170VA Surface Mount Clockwise 1 1 Wire Termination 1.9kg 160 x 130 x 160mm 700mA 160mm - 160mm
RS Stock No. 890-2844
Brand :RS PRO
THB9,667.48
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. 890-2803
Brand :RS PRO
THB7,542.38
Each
Units
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 Stock No. 122-6784
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVTC-UK5A
THB24,604.01
Each
Units
240V - 1350kVA Free Standing Clockwise 1 3 Wire Termination 16.5kg 230 x 200 x 365mm - - - 230mm
RS Stock No. 890-2872
Brand :RS PRO
THB20,815.81
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. 890-2831
Brand :RS PRO
THB4,159.54
Each
Units
240V 0 → 240V 480VA Surface Mount Clockwise 1 1 Wire Termination 3.1kg 113 x 130 x 127mm 2A 127mm 113mm 113mm
RS Stock No. 890-2806
Brand :RS PRO
THB9,881.92
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. 117-6016
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVT2.5k/9A-1
THB5,028.33
Each
Units
240V - 2.5kVA Panel Mount Clockwise 1 1 Clamp 15kg 185 (Dia.) x 174mm - - 185mm 174mm
RS Stock No. 890-2774
Brand :RS PRO
THB3,300.65
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. 117-6020
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVT1k/3.5A-1E
THB20,514.84
Each
Units
240V - 1kVA Surface Mount Clockwise 1 1 - 10kg 275 x 214 x 270mm - - - 275mm
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