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

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Omschrijving Prijs 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-stocknr. 436-9842
FabrikantnummerAIM10/5
FabrikantBlock
€ 182,18
Each
Aantal stuks
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-stocknr. 310-1140
FabrikantnummerSAT100
FabrikantBlock
€ 65,66
Each
Aantal stuks
230V ac 115 V ac 100VA - - - - 166mm 166 x 76 x 77mm 76mm 77mm - - -
RS-stocknr. 738-7806
FabrikantnummerAT3 2-48/50-4
FabrikantBlock
€ 147,10
Each
Aantal stuks
480 V ac, 500 V ac 400 V ac 2kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 75/41,5 Screw 155mm 155 x 110 x 155mm 110mm 155mm 50Hz 60Hz -
RS-stocknr. 738-7880
FabrikantnummerAT3 15-44/46-4
FabrikantBlock
€ 296,15
Each
Aantal stuks
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-stocknr. 738-7900
FabrikantnummerAT3 25-22/23-4
FabrikantBlock
€ 1.217,77
Each
Aantal stuks
220 V ac, 230 V ac 400 V ac 25kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 210/88 Screw 480mm 480 x 220 x 440mm 220mm 440mm 50Hz 60Hz -
RS-stocknr. 738-7878
FabrikantnummerAT3 15-24/35-4
FabrikantBlock
€ 661,13
Each
Aantal stuks
240 V ac, 346 V ac 400 V ac 15kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 180/63 Screw 410mm 410 x 175 x 345mm 175mm 345mm 50Hz 60Hz -
RS-stocknr. 738-7852
FabrikantnummerAT3 10-38/42-4
FabrikantBlock
€ 160,07
Each
Aantal stuks
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-stocknr. 436-9858
FabrikantnummerAIM16/8
FabrikantBlock
€ 228,54
Each
Aantal stuks
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
RS-stocknr. 158-7340
FabrikantnummerEJET1000
FabrikantBlock
€ 398,09
Each
Aantal stuks
230V ac 110 V ac 1000VA Enclosed Floor Standing - Cable 244mm 244 x 143 x 197mm 143mm 197mm 50Hz 60Hz -
RS-stocknr. 347-6652
FabrikantnummerCM1000/A/US
€ 114,97
Each
Aantal stuks
230V ac 114.2V ac 1kVA - - Bobbin - 205mm 205 x 195 x 260mm 260mm 190mm - - -
RS-stocknr. 738-7843
FabrikantnummerAT3 3,5-69-4
FabrikantBlock
€ 270,47
Each
Aantal stuks
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-stocknr. 738-7795
FabrikantnummerAT3 2-22/23-4
FabrikantBlock
€ 204,09
Each
Aantal stuks
220 V ac, 230 V ac 400 V ac 2kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 90/51,5 Screw 220mm 220 x 125 x 175mm 125mm 175mm 50Hz 60Hz -
RS-stocknr. 738-7821
FabrikantnummerAT3 3,5-22/23-4
FabrikantBlock
€ 285,51
Each
Aantal stuks
220 V ac, 230 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-stocknr. 738-7874
FabrikantnummerAT3 15-22/23-4
FabrikantBlock
€ 490,57
Each
Aantal stuks
220 V ac, 230 V ac 400 V ac 15kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 180/78 Screw 410mm 410 x 195 x 345mm 195mm 345mm 50Hz 60Hz -
RS-stocknr. 738-7884
FabrikantnummerAT3 15-48/50-4
FabrikantBlock
€ 377,71
Each
Aantal stuks
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-stocknr. 738-7868
FabrikantnummerAT3 10-58/60-4
FabrikantBlock
€ 410,05
Each
Aantal stuks
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-stocknr. 738-7799
FabrikantnummerAT3 2-24/35-4
FabrikantBlock
€ 196,35
Each
Aantal stuks
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-stocknr. 738-7802
FabrikantnummerAT3 2-44/46-4
FabrikantBlock
€ 123,76
Each
Aantal stuks
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-stocknr. 738-7824
FabrikantnummerAT3 3,5-24/35-4
FabrikantBlock
€ 249,90
Each
Aantal stuks
240 V ac, 346 V 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-stocknr. 738-7837
FabrikantnummerAT3 3,5-44/46-4
FabrikantBlock
€ 146,22
Each
Aantal stuks
460 V ac, 3 x 440 V ac 400V ac 3.5 kVA, 10 kVA Open Frame Chassis Mount, Floor Standing, Wall Mount 3 UI 75/41,5 Screw 155mm 155 x 110 x 155mm 110mm 155mm 50Hz 60Hz -
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