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

...
Read more Read less

Filter

Visar 1 - 20 av 56 produkter
Resultat per sida
Beskrivning Pris 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
RS-artikelnummer 310-1140
Tillv. art.nrSAT100
VarumärkeBlock
504,39 kr
Each
Enheter
230V ac 115 V ac 100VA - - - - 166mm 166 x 76 x 77mm 76mm 77mm - - -
RS-artikelnummer 293-2656
Tillv. art.nrAIM 1.6/0.8
VarumärkeBlock
492,70 kr
Each
Enheter
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
RS-artikelnummer 436-8877
Tillv. art.nrCMA30K/FM0
VarumärkeCarroll & Meynell
6 774,56 kr
Each
Enheter
380 V, 400 V, 415 V 380 V, 400 V, 415 V 30kVA - - Bobbin - 420mm 420 x 350 x 260mm 350mm 260mm - - -
RS-artikelnummer 310-1156
Tillv. art.nrSAT200
VarumärkeBlock
508,31 kr
Each
Enheter
230V ac 115 V ac 200VA - - - - 166mm 166 x 76 x 77mm 76mm 77mm - - -
RS-artikelnummer 436-9842
Tillv. art.nrAIM10/5
VarumärkeBlock
2 148,24 kr
Each
Enheter
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-artikelnummer 436-8883
Tillv. art.nrCM3000/A/US
VarumärkeCarroll & Meynell
1 970,18 kr
Each
Enheter
230V 114.1V ac 3kVA - - Bobbin - 205mm 205 x 195 x 260mm 260mm 190mm - - -
RS-artikelnummer 328-8051
Tillv. art.nrSAT 500
VarumärkeBlock
1 053,85 kr
Each
Enheter
230V ac 115 V ac 500VA - - - - 223mm 223 x 97 x 117mm 97mm 117mm - - -
RS-artikelnummer 738-7846
Tillv. art.nrAT3 10-20/21-4
VarumärkeBlock
7 675,07 kr
Each
Enheter
200 V ac, 208 V ac 400 V ac 10kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 150/77 Screw 350mm 350 x 192 x 280mm 192mm 280mm 50Hz 60Hz -
RS-artikelnummer 738-7852
Tillv. art.nrAT3 10-38/42-4
VarumärkeBlock
2 064,59 kr
Each
Enheter
380 V ac, 415 V ac 400 V ac 10kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 90/31,5 Screw 220mm 220 x 105 x 175mm 105mm 175mm 50Hz 60Hz -
RS-artikelnummer 738-7880
Tillv. art.nrAT3 15-44/46-4
VarumärkeBlock
2 936,25 kr
Each
Enheter
440 V ac, 460 V ac 400 V ac 15kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 114/64 Screw 267mm 267 x 150 x 215mm 150mm 215mm 50Hz 60Hz -
RS-artikelnummer 738-7856
Tillv. art.nrAT3 10-44/46-4
VarumärkeBlock
3 446,94 kr
Each
Enheter
440 V ac, 460 V ac 400 V ac 10kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 114/40 Screw 267mm 267 x 125 x 215mm 125mm 215mm 50Hz 60Hz -
RS-artikelnummer 738-7922
Tillv. art.nrAT3 25-69-4
VarumärkeBlock
14 911,31 kr
Each
Enheter
690V ac 400 V ac 25kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 210/73 Screw 480mm 480 x 192 x 395mm 192mm 395mm 50Hz 60Hz -
RS-artikelnummer 738-7802
Tillv. art.nrAT3 2-44/46-4
VarumärkeBlock
1 680,87 kr
Each
Enheter
440 V ac, 460 V ac 400 V ac 2kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 75/26,5 Screw 155mm 155 x 95 x 155mm 95mm 155mm 50Hz 60Hz -
RS-artikelnummer 738-7916
Tillv. art.nrAT3 25-44/46-4
VarumärkeBlock
5 270,92 kr
Each
Enheter
440 V ac, 460 V ac 400 V ac 25kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 132/72 Screw 315mm 315 x 185 x 255mm 185mm 255mm 50Hz 60Hz -
RS-artikelnummer 738-7884
Tillv. art.nrAT3 15-48/50-4
VarumärkeBlock
5 054,61 kr
Each
Enheter
480 V ac, 500 V ac 400 V ac 15kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 132/72 Screw 315mm 315 x 165 x 250mm 165mm 250mm 50Hz 60Hz -
RS-artikelnummer 738-7812
Tillv. art.nrAT3 3,5-20/21-4
VarumärkeBlock
2 579,83 kr
Each
Enheter
200 V ac, 208 V ac 400 V ac 3.5kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 114/64 Screw 267mm 267 x 150 x 220mm 150mm 220mm 50Hz 60Hz -
RS-artikelnummer 158-7312
Tillv. art.nrE-JET 250
VarumärkeBlock
2 850,43 kr
Each
Enheter
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-artikelnummer 738-7868
Tillv. art.nrAT3 10-58/60-4
VarumärkeBlock
5 208,26 kr
Each
Enheter
575 V ac, 600 V ac 400 V ac 10kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 132/72 Screw 315mm 315 x 165 x 250mm 165mm 250mm 50Hz 60Hz -
RS-artikelnummer 504-202
VarumärkeRS PRO
564,46 kr
Each
Enheter
230V ac 115V ac 50VA Enclosed Chassis Mount, Floor Standing, Wall Mount - - 58mm 58 x 63 x 70mm 63mm 70mm 50Hz 60Hz -
RS-artikelnummer 310-1162
Tillv. art.nrSAT300
VarumärkeBlock
676,75 kr
Each
Enheter
230V ac 115 V ac 300VA - - - - 223mm 223 x 97 x 117mm 97mm 117mm - - -
Related Products
Autowound transformers for step-up or step-down of mains ...
Description:
Autowound transformers for step-up or step-down of mains voltages at 50/60Hz. , Compact construction Full varnish impregnation Fully shrouded Four-hole fixing for permanent installation Terminal blocks with protective covers (except 50VA which has leads) 100% electrical and flash tested (2kV ...
Autowound transformers for step-up or step-down of mains ...
Description:
Autowound transformers for step-up or step-down of mains voltages at 50/60Hz. , Compact construction Full varnish impregnation Fully shrouded Four-hole fixing for permanent installation Terminal blocks with protective covers (except 50VA which has leads) 100% electrical and flash tested (2kV ...
The E-JET step-down autotransformers allow the adjustment and ...
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 ...
From Block, these short circuit proof encapsulated autowound ...
Description:
From Block, these short circuit proof encapsulated autowound transformers allow step up or step down of mains voltage at 50/60 Hz. Featuring easy to install mounting holes, screw terminal connections with strain relief for connecting leads, a robust and reliable ...