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 Primary Current Rating Depth Diameter Length
RS Stock No. 117-6014
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVT1k/3.5A-1
THB3,800.59
Each
Units
240V - 1kVA Panel Mount Clockwise 1 1 Clamp 8kg 155 (Dia.) x 176mm - - 155mm 176mm
RS Stock No. 117-6017
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVT3.3k/12A-1
THB7,037.24
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
THB4,321.04
Each
Units
240V - 1.4kVA Panel Mount Clockwise 1 1 Clamp 11kg 170 (Dia.) x 176mm - - 170mm 176mm
RS Stock No. 122-6784
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVTC-UK5A
THB24,604.01
Each
Units
240V - 1350VA Free Standing Clockwise 1 3 Wire Termination 16.5kg 230 x 200 x 365mm - - - 230mm
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. 117-6020
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVT1k/3.5A-1E
THB20,734.74
Each
Units
240V - 1kVA Surface Mount Clockwise 1 1 - 10kg 275 x 214 x 270mm 13A - - 275mm
RS Stock No. 117-6022
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVT2.5k/9A-1E
THB25,373.02
Each
Units
240V - 2.5kVA Surface Mount Clockwise 1 1 - 18.5kg 275 x 214 x 270mm 13A - - 275mm
RS Stock No. 117-6019
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVT0.3k/1.1A-1E
THB23,419.11
Each
Units
240V - 300VA Surface Mount Clockwise 1 1 - 7kg 195 x 214 x 190mm 13A - - 195mm
RS Stock No. 117-6021
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVT1.4k/5A-1E
THB24,395.55
Each
Units
240V - 1.4kVA Surface Mount Clockwise 1 1 - 13kg 275 x 210 x 270mm 13A - - 275mm
RS Stock No. 122-6785
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.MVTC-UK9A
THB33,040.00
Each
Units
240V - 2430VA Free Standing Clockwise 1 3 - 20.5kg 230 x 200 x 365mm - - - 230mm
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