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-240...

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RS PRO 100VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
RS PRO 100VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
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RS Stock No.: 504-183Brand: RS PROHSN Code: 85041080

₹ 13,645.21

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1₹ 13,645.21
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RS Pro
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
0.934
-
-
RS PRO 250VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
RS PRO 250VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
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RS Stock No.: 504-199Brand: RS PROHSN Code: 85041080

₹ 19,684.87

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1₹ 19,684.87
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RS Pro
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
0.947
-
-
RS PRO 500VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
RS PRO 500VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
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RS Stock No.: 504-195Brand: RS PROHSN Code: 85041080

₹ 25,334.77

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1₹ 25,334.77
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RS Pro
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
0.958
-
-
RS PRO 50VA Enclosed Autotransformer, 230V ac Primary, 115V ac Secondary
RS PRO 50VA Enclosed Autotransformer, 230V ac Primary, 115V ac Secondary
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RS Stock No.: 504-202Brand: RS PROHSN Code: 85041080

₹ 10,527.58

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1₹ 10,527.58
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RS Pro
230V ac
115V ac
50VA
Enclosed
Chassis Mount, Floor Standing, Wall Mount
-
-
58mm
58 x 63 x 70mm
63mm
70mm
0.922
-
-
RS PRO 150VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
RS PRO 150VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
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RS Stock No.: 504-189Brand: RS PROHSN Code: 85041080

₹ 15,336.60

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1₹ 15,336.60
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RS Pro
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
0.942
-
-
RS PRO 1kVA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
RS PRO 1kVA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary
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RS Stock No.: 504-206Brand: RS PROHSN Code: 85041080

₹ 45,015.15

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1₹ 45,015.15
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RS Pro
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
0.96
-
-
Carroll & Meynell 2kVA Autotransformer, 230V ac Primary, 115V ac Secondary, Bobbin Core
Carroll & Meynell 2kVA Autotransformer, 230V ac Primary, 115V ac Secondary, Bobbin Core
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RS Stock No.: 347-6668Brand: Carroll & MeynellManufacturers Part No.: CM2000/A/USHSN Code: 85043180

₹ 48,317.80

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1₹ 48,317.80
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Carroll & Meynell
230V ac
115V ac
2kVA
-
-
Bobbin
-
205mm
205 x 195 x 260mm
260mm
190mm
-
-
-
Block Enclosed Autotransformer, 115 V ac, 230 V ac Primary, 115 V ac, 220 V ac, 230 V ac Secondary
Block Enclosed Autotransformer, 115 V ac, 230 V ac Primary, 115 V ac, 220 V ac, 230 V ac Secondary
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RS Stock No.: 293-2678Brand: BlockManufacturers Part No.: AIM 5.0/2.5HSN Code: 85043180

₹ 18,055.39

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1₹ 18,055.39
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Block
115 V ac, 230 V ac
115 V ac, 220 V ac, 230 V ac
-
Enclosed
Panel Mount
-
Screw
223mm
223 x 97 x 117mm
97mm
117mm
-
-
2.5 A, 5.0 A
Carroll & Meynell 3kVA Autotransformer, 230V Primary, 114.1V ac Secondary, Bobbin Core
Carroll & Meynell 3kVA Autotransformer, 230V Primary, 114.1V ac Secondary, Bobbin Core
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RS Stock No.: 436-8883Brand: Carroll & MeynellManufacturers Part No.: CM3000/A/USHSN Code: 85043180

₹ 49,789.53

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1₹ 49,789.53
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Carroll & Meynell
230V
114.1V ac
3kVA
-
-
Bobbin
-
205mm
205 x 195 x 260mm
260mm
190mm
-
-
-
Carroll & Meynell 1kVA Autotransformer, 230V ac Primary, 114.2V ac Secondary, Bobbin Core
Carroll & Meynell 1kVA Autotransformer, 230V ac Primary, 114.2V ac Secondary, Bobbin Core
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RS Stock No.: 347-6652Brand: Carroll & MeynellManufacturers Part No.: CM1000/A/USHSN Code: 85043180

₹ 44,633.00

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1₹ 44,633.00
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Carroll & Meynell
230V ac
114.2V ac
1kVA
-
-
Bobbin
-
205mm
205 x 195 x 260mm
260mm
190mm
-
Thermal Cutout
-
Carroll & Meynell 30kVA Autotransformer, 380 V, 400 V, 415 V Primary, 380 V, 400 V, 415 V Secondary, Bobbin Core
Carroll & Meynell 30kVA Autotransformer, 380 V, 400 V, 415 V Primary, 380 V, 400 V, 415 V Secondary, Bobbin Core
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RS Stock No.: 436-8877Brand: Carroll & MeynellManufacturers Part No.: CMA30K/FM0HSN Code: 85043300

₹ 211,729.70

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1₹ 211,729.70
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Carroll & Meynell
380 V, 400 V, 415 V
380 V, 400 V, 415 V
30kVA
-
-
Bobbin
-
420mm
420 x 350 x 260mm
350mm
260mm
-
-
-
Block 100VA Autotransformer, 230V ac Primary, 115 V ac Secondary
Block 100VA Autotransformer, 230V ac Primary, 115 V ac Secondary
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RS Stock No.: 310-1140Brand: BlockManufacturers Part No.: SAT100HSN Code: 85043180

₹ 8,849.88

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1₹ 8,849.88
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Block
230V ac
115 V ac
100VA
-
-
-
-
166mm
166 x 76 x 77mm
76mm
77mm
-
-
-
Carroll & Meynell 10kVA Enclosed Autotransformer, 380 V, 400 V, 415 V Primary, 380 V, 400 V, 415 V Secondary
Carroll & Meynell 10kVA Enclosed Autotransformer, 380 V, 400 V, 415 V Primary, 380 V, 400 V, 415 V Secondary
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RS Stock No.: 436-8861Brand: Carroll & MeynellManufacturers Part No.: CMA10K/FM0HSN Code: 85043200

₹ 158,540.63

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1₹ 158,540.63
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Carroll & Meynell
380 V, 400 V, 415 V
380 V, 400 V, 415 V
10kVA
Enclosed
Floor Standing
-
-
420mm
420 x 270 x 325mm
270mm
325mm
-
-
-
2kVA Open Frame Autotransformer, 480 V ac, 500 V ac Primary, 400 V ac Secondary, 3 UI 75/41,5 Core
2kVA Open Frame Autotransformer, 480 V ac, 500 V ac Primary, 400 V ac Secondary, 3 UI 75/41,5 Core
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RS Stock No.: 738-7806Brand: BlockManufacturers Part No.: AT3 2-48/50-4HSN Code: 85043180

₹ 31,990.87

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1₹ 31,990.87
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Block
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
-
-
-
Block 10kVA Open Frame Autotransformer, 380 V ac, 415 V ac Primary, 400 V ac Secondary, 3 UI 90/31,5 Core
Block 10kVA Open Frame Autotransformer, 380 V ac, 415 V ac Primary, 400 V ac Secondary, 3 UI 90/31,5 Core
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RS Stock No.: 738-7852Brand: BlockManufacturers Part No.: AT3 10-38/42-4HSN Code: 85043180

₹ 34,835.58

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1₹ 34,835.58
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Block
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
-
-
-
15kVA Open Frame Autotransformer, 440 V ac, 460 V ac Primary, 400 V ac Secondary, 3 UI 114/64 Core
15kVA Open Frame Autotransformer, 440 V ac, 460 V ac Primary, 400 V ac Secondary, 3 UI 114/64 Core
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RS Stock No.: 738-7880Brand: BlockManufacturers Part No.: AT3 15-44/46-4HSN Code: 85043180

₹ 68,561.50

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1₹ 68,561.50
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Block
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
-
-
-
3.5kVA Open Frame Autotransformer, 200 V ac, 208 V ac Primary, 400 V ac Secondary, 3 UI 114/64 Core
3.5kVA Open Frame Autotransformer, 200 V ac, 208 V ac Primary, 400 V ac Secondary, 3 UI 114/64 Core
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RS Stock No.: 738-7812Brand: BlockManufacturers Part No.: AT3 3,5-20/21-4HSN Code: 85043180

₹ 65,088.29

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1₹ 65,088.29
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Block
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
-
-
-
3.5kVA Open Frame Autotransformer, 220 V ac, 230 V ac Primary, 400 V ac Secondary, 3 UI 114/64 Core
3.5kVA Open Frame Autotransformer, 220 V ac, 230 V ac Primary, 400 V ac Secondary, 3 UI 114/64 Core
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RS Stock No.: 738-7821Brand: BlockManufacturers Part No.: AT3 3,5-22/23-4HSN Code: 85043180

₹ 67,721.42

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1₹ 67,721.42
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Block
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
-
-
-
10kVA Open Frame Autotransformer, 440 V ac, 460 V ac Primary, 400 V ac Secondary, 3 UI 114/40 Core
10kVA Open Frame Autotransformer, 440 V ac, 460 V ac Primary, 400 V ac Secondary, 3 UI 114/40 Core
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RS Stock No.: 738-7856Brand: BlockManufacturers Part No.: AT3 10-44/46-4HSN Code: 85043180

₹ 57,409.91

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1₹ 57,409.91
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Block
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
-
-
-
Block 3.5 kVA, 10 kVA Open Frame Autotransformer, 460 V ac, 3 x 440 V ac Primary, 400V ac Secondary, 3 UI 75/41,5 Core
Block 3.5 kVA, 10 kVA Open Frame Autotransformer, 460 V ac, 3 x 440 V ac Primary, 400V ac Secondary, 3 UI 75/41,5 Core
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RS Stock No.: 738-7837Brand: BlockManufacturers Part No.: AT3 3,5-44/46-4HSN Code: 85043180

₹ 32,624.07

Each (Exc. GST)

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1₹ 32,624.07
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Block
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
-
-
-