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 738-7903
Tillv. art.nrAT3 25-24/35-4
VarumärkeBlock
10 192,76 kr
Each
Enheter
240 V ac, 346 V ac 400 V ac 25kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 210/73 Screw 480mm 480 x 180 x 430mm 180mm 430mm 50Hz 60Hz -
RS-artikelnummer 504-206
VarumärkeRS PRO
1 899,46 kr
Each
Enheter
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-artikelnummer 738-7859
Tillv. art.nrAT3 10-24/35-4
VarumärkeBlock
5 142,08 kr
Each
Enheter
240 V ac, 346 V ac 400 V ac 10kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 150/65 Screw 350mm 350 x 162 x 280mm 162mm 280mm 50Hz 60Hz -
RS-artikelnummer 738-7799
Tillv. art.nrAT3 2-24/35-4
VarumärkeBlock
1 731,02 kr
Each
Enheter
240 V ac, 346 V ac 400 V ac 2kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 90/41,5 Screw 220mm 220 x 115 x 175mm 115mm 175mm 50Hz 60Hz -
RS-artikelnummer 158-7328
Tillv. art.nrEJET500
VarumärkeBlock
3 395,86 kr
Each
Enheter
230V ac 110 V ac 500VA Enclosed - - Cable 180mm 180 x 126 x 192mm 126mm 192mm 50Hz 60Hz -
RS-artikelnummer 738-7843
Tillv. art.nrAT3 3,5-69-4
VarumärkeBlock
3 310,14 kr
Each
Enheter
690V ac 400 V ac 3.5kVA 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 738-7896
Tillv. art.nrAT3 15-69-4
VarumärkeBlock
7 752,73 kr
Each
Enheter
220 V ac, 230 V ac 400 V ac 15kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 180/63 Screw 410mm 410 x 155 x 340mm 155mm 340mm 50Hz 60Hz -
RS-artikelnummer 738-7887
Tillv. art.nrAT3 15-38/42-4
VarumärkeBlock
1 237,19 kr
Each
Enheter
380 V ac, 415 V ac 400 V ac 15kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 90/51,1 Screw 220mm 220 x 125 x 175mm 125mm 175mm 50Hz 60Hz -
RS-artikelnummer 158-7340
Tillv. art.nrEJET1000
VarumärkeBlock
4 647,31 kr
Each
Enheter
230V ac 110 V ac 1000VA Enclosed Floor Standing - Cable 244mm 244 x 143 x 197mm 143mm 197mm 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 293-2662
Tillv. art.nrAIM 3.2/1.6
VarumärkeBlock
745,31 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 223mm 223 x 97 x 117mm 97mm 117mm 50Hz 60Hz -20°C
RS-artikelnummer 738-7907
Tillv. art.nrAT3 25-38/42-4
VarumärkeBlock
2 865,21 kr
Each
Enheter
380 V ac, 415 V ac 400 V ac 25kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 114/40 Screw 267mm 267 x 145 x 220mm 145mm 220mm 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 -