1. หน้าหลัก / Home
  2. Power Supplies & Transformers
  3. Transformers
  4. Autotransformers

Autotransformers

An autotransformer, also known as a step-down transformer, is an electrical transformer with only one winding. The winding has at least 3 taps where electrical connections are made. Autotransformers have the benefit of being small, light and cheap compared to dual-winding transformers.
Autotransformers are used to step up or step down voltages in the 110V-115V-120V range and 220V-230V-240V range. This allows electrical equipment from the US to be fed from higher European voltage.
Applications
• Can be used as a method of soft starting induction motors
• In UK railway applications
• In audio applications, tapped autotransformers are used to adapt speakers to constant-voltage distribution systems
• Power applications to interconnect systems operating at different voltages
• Special autotransformers are used on rural power distribution lines so that customers further away receive the same average voltage as ones nearer to the source

...
อ่านเพิ่มเติม อ่านน้อยกว่า

คัดกรอง / Filters

กำลังดูสินค้า 1 - 20 รายการจาก 22 รายการ / Viewing 1 - 20 of 22 products
ผลการค้นหาต่อหน้า / Results Per Page
รายละเอียดสินค้า / Description ราคา / Price Primary Voltage Rating Secondary Voltage Rating Power Rating Construction Mounting Type Core Type Termination Type Length Dimensions Width Depth Minimum Operating Frequency Maximum Operating Frequency Minimum Temperature
Block Enclosed Autotransformer, 115 V ac, 230 V ac Primary, 115 V ac, 220 V ac, 230 V ac, 240 V ac Secondary
RS Stock No. 293-2656
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AIM 1.6/0.8
Brand :Block
THB1,622.21
Each
Units
 115 V ac, 230 V ac 115 V ac, 220 V ac, 230 V ac, 240 V ac - Enclosed Panel Mount - Screw 166mm 166 x 77 x 76mm 77mm 76mm 50Hz 60Hz -20°C
Block Enclosed Autotransformer, 115 V ac, 230 V ac Primary, 115 V ac, 220 V ac, 230 V ac, 240 V ac Secondary
RS Stock No. 436-9858
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AIM16/8
Brand :Block
THB7,909.07
Each
Units
 115 V ac, 230 V ac 115 V ac, 220 V ac, 230 V ac, 240 V ac - Enclosed Panel Mount - Screw 284mm 283 x 200 x 165mm 165mm 200mm 50Hz 60Hz -20°C
Block 200VA Autotransformer, 230V ac Primary, 115 V ac Secondary
RS Stock No. 310-1156
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SAT200
Brand :Block
THB1,672.49
Each
Units
 230V ac 115 V ac 200VA - - - - 166mm 166 x 76 x 77mm 76mm 77mm - - -
Block Enclosed Autotransformer, 115 V ac, 230 V ac Primary, 115 V ac, 220 V ac, 230 V ac, 240 V ac Secondary
RS Stock No. 293-2662
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AIM 3.2/1.6
Brand :Block
THB2,768.32
Each
Units
 115 V ac, 230 V ac 115 V ac, 220 V ac, 230 V ac, 240 V ac - Enclosed Panel Mount - Screw 223mm 223 x 97 x 117mm 97mm 117mm 50Hz 60Hz -20°C
RS PRO 1kVA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
RS Stock No. 504-206
Brand :RS PRO
THB5,627.44
Each
Units
 220 V ac, 230 V ac, 240 V ac 115V ac 1kVA Enclosed Chassis Mount, Floor Standing, Wall Mount - - 115mm 115 x 192 x 137mm 192mm 137mm 50Hz 60Hz -
RS PRO 250VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
RS Stock No. 504-199
Brand :RS PRO
THB2,627.75
Each
Units
 220 V ac, 230 V ac, 240 V ac 115V ac 250VA Enclosed Chassis Mount, Floor Standing, Wall Mount - - 81mm 81 x 136 x 100mm 136mm 100mm 50Hz 60Hz -
Block Enclosed Autotransformer, 115 V ac, 230 V ac Primary, 20 V ac, 115 V ac, 220 V ac, 230 V ac Secondary
RS Stock No. 293-2678
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AIM 5.0/2.5
Brand :Block
THB4,693.57
Each
Units
 115 V ac, 230 V ac 20 V ac, 115 V ac, 220 V ac, 230 V ac - Enclosed Panel Mount - Screw 223mm 223 x 97 x 117mm 97mm 117mm 50Hz 60Hz -20°C
Block 500VA Autotransformer, 230V ac Primary, 115 V ac Secondary
RS Stock No. 328-8051
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SAT 500
Brand :Block
THB3,697.73
Each
Units
 230V ac 115 V ac 500VA - - - - 223mm 223 x 97 x 117mm 97mm 117mm - - -
Block Enclosed Autotransformer, 115 V ac, 230 V ac Primary, 115 V ac, 220 V ac, 230 V ac, 240 V ac Secondary
RS Stock No. 436-9842
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.AIM10/5
Brand :Block
THB6,947.67
Each
Units
 115 V ac, 230 V ac 115 V ac, 220 V ac, 230 V ac, 240 V ac - Enclosed Panel Mount - Screw 283mm 283 x 200 x 165mm 165mm 200mm 50Hz 60Hz -20°C
RS PRO 100VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
RS Stock No. 504-183
Brand :RS PRO
THB1,579.89
Each
Units
 220 V ac, 230 V ac, 240 V ac 115V ac 100VA Enclosed Chassis Mount, Floor Standing, Wall Mount - - 65mm 65 x 115 x 78mm 115mm 78mm 50Hz 60Hz -
RS PRO 50VA Enclosed Autotransformer, 230V ac Primary, 115V ac Secondary
RS Stock No. 504-202
Brand :RS PRO
THB1,326.12
Each
Units
 230V ac 115V ac 50VA Enclosed Chassis Mount, Floor Standing, Wall Mount - - 58mm 58 x 63 x 70mm 63mm 70mm 50Hz 60Hz -
Block 1000VA Enclosed Autotransformer, 230V ac Primary, 110 V ac Secondary
RS Stock No. 158-7340
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.EJET1000
Brand :Block
THB18,232.68
Each
Units
 230V ac 110 V ac 1000VA Enclosed Floor Standing - Cable 244mm 244 x 143 x 197mm 143mm 197mm 50Hz 60Hz -
Block 100VA Autotransformer, 230V ac Primary, 115 V ac Secondary
RS Stock No. 310-1140
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SAT100
Brand :Block
THB2,390.67
Each
Units
 230V ac 115 V ac 100VA - - - - 166mm 166 x 76 x 77mm 76mm 77mm - - -
Block 600VA Autotransformer, 230V ac Primary, 115 V ac Secondary
RS Stock No. 328-8067
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SAT 600
Brand :Block
THB6,657.66
Each
Units
 230V ac 115 V ac 600VA - - - - 223mm 223 x 97 x 117mm 97mm 117mm - - -
Block 500VA Enclosed Autotransformer, 230V ac Primary, 110 V ac Secondary
RS Stock No. 158-7328
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.EJET500
Brand :Block
THB10,944.78
Each
Units
 230V ac 110 V ac 500VA Enclosed - - Cable 180mm 180 x 126 x 192mm 126mm 192mm 50Hz 60Hz -
RS PRO 150VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
RS Stock No. 504-189
Brand :RS PRO
THB1,846.96
Each
Units
 220 V ac, 230 V ac, 240 V ac 115V ac 150VA Enclosed Chassis Mount, Floor Standing, Wall Mount - - 73mm 73 x 120 x 89mm 120mm 89mm 50Hz 60Hz -
Carroll & Meynell 1kVA Autotransformer, 230V ac Primary, 114.2V ac Secondary, Bobbin Core
RS Stock No. 347-6652
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CM1000/A/US
Brand :Carroll & Meynell
THB5,633.70
Each
Units
 230V ac 114.2V ac 1kVA - - Bobbin - 205mm 205 x 195 x 260mm 260mm 190mm - - -
Block 250VA Enclosed Autotransformer, 230V ac Primary, 110 V ac Secondary
RS Stock No. 158-7312
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.E-JET 250
Brand :Block
THB10,968.03
Each
Units
 230V ac 110 V ac 250VA Enclosed - - Cable with Plug, 3-Pin USA Socket 160mm 160 x 95 x 155mm 95mm 155mm 50Hz 60Hz -
RS PRO 500VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
RS Stock No. 504-195
Brand :RS PRO
THB3,028.89
Each
Units
 220 V ac, 230 V ac, 240 V ac 115V ac 500VA Enclosed Chassis Mount, Floor Standing, Wall Mount - - 98mm 98 x 145 x 118mm 145mm 118mm 50Hz 60Hz -
Carroll & Meynell 2kVA Autotransformer, 230V ac Primary, 115V ac Secondary, Bobbin Core
RS Stock No. 347-6668
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.CM2000/A/US
Brand :Carroll & Meynell
THB6,145.61
Each
Units
 230V ac 115V ac 2kVA - - Bobbin - 205mm 205 x 195 x 260mm 260mm 190mm - - -
Related Products
Block 250VA Enclosed Autotransformer, 230V ac Primary, 110
The E-JET step-down autotransformers allow the adjustment and ...
Quickview
Block 250VA Enclosed Autotransformer, 230V ac Primary, 110
Description:
The E-JET step-down autotransformers allow the adjustment and operation of 110 V appliances connected to 230 V mains.Using autotransformers achieves an approx. 50% lower nominal rating compared to transformers with galvanically isolated windings.To ensure the output voltage to earth is ...
View Product
[ x ] close
Schneider Electric Contactor Terminal Block for use with
3 series of terminals for power supply connection:- ...
Quickview
Schneider Electric Contactor Terminal Block for use with
Description:
3 series of terminals for power supply connection:- 125A tiered terminals for clipping to symmetrical rail with isolating cover- juxtaposable terminals for clipping to symmetrical rail with "fit together" option- terminals on insulating support, for fitting to symmetrical rail, screwing ...
View Product
[ x ] close
Block 1000 (CosΦ=1) VA, 2300 (cosΦ=0.5) VA Isolating
High-quality multi-purpose panel mount isolating transformers from the ...
Quickview
Block 1000 (CosΦ=1) VA, 2300 (cosΦ=0.5) VA Isolating
Description:
High-quality multi-purpose panel mount isolating transformers from the Block TT1 series. The transformers are designed for the safe isolation of the input and output sides. They can be used to set up protective separation as a protective measure. Safe galvanic ...
View Product
[ x ] close
Block 100 (CosΦ=1) VA, 220 (CosΦ=0.5) VA Isolating
High-quality multi-purpose FAIL-SAFE transformers. The transformers are designed ...
Quickview
Block 100 (CosΦ=1) VA, 220 (CosΦ=0.5) VA Isolating
Description:
High-quality multi-purpose FAIL-SAFE transformers. The transformers are designed for the electrical isolation of the input and output sides. The FAIL-SAFE transformers are suitable for the construction of both SELV and PELV electrical circuits. 6.3 x 0.8 mm Tab Connector4mm² Screw ...
View Product
[ x ] close
บริการ / Services
เกี่ยวกับ RS / About RS
Hot Topics
โทรศัพท์สอบถามข้อมูล
+66 2 648 6868
RS Components Co., Ltd. (Head Office)
50 GMM Grammy Place, 19th Floor, Unit 1901-1904, Sukhumvit 21 Road (Asoke), Klongtoey Nua, Wattana, Bangkok, Thailand 10110
Payment options