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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BD 63.325

BD 63.325 Each (Exc. Vat)

Add to basket
RS Pro
240 V ac
115 V ac
Enclosed
Wall
Terminal Block
-
-
1000VA
105°C
AS/NZS 61558.1, AS/NZS 61558.2.13, CE, IEC/BS/EN 61558-1, IEC/BS/EN 61558-2-13, RoHS
137mm
192 mm
-
115mm
8.8kg

BD 98.471

BD 98.471 Each (Exc. Vat)

Add to basket
RS Pro
240 V ac
115 V ac
Enclosed
Wall
Terminal Block
-
-
1000VA
105°C
IECBSEN 615581, ASNZS 61558.1, CE, ASNZS 61558..1, RoHS
137mm
192 mm
-
115mm
8.8kg

BD 141.143

BD 141.143 Each (Exc. Vat)

Add to basket
RS Pro
240 V ac
115 V ac
Enclosed
Wall
Terminal Block
-
-
1000VA
105°C
ASNZS 61558..1, ASNZS 61558.1, CE, IECBSEN 615581, RoHS
137mm
192 mm
-
115mm
8.8kg

BD 53.604

BD 53.604 Each (Exc. Vat)

Add to basket
RS Pro
240 V ac
115 V ac
Enclosed
Wall
Terminal Block
-
-
1000VA
105°C
ASNZS 61558..1, CE, IECBSEN 615581, RoHS, ASNZS 61558.1
137mm
192 mm
-
115mm
8.8kg

BD 254.330

BD 254.330 Each (Exc. Vat)

Add to basket
RS Pro
220 V ac, 230 V ac, 240 V ac
115 V ac
Enclosed
Chassis, Floor Standing, Wall
-
-
-
1kVA
105°C
RoHS
137mm
192 mm
10
115mm
8.8kg

BD 75.779

BD 75.779 Each (Exc. Vat)

Add to basket
RS Pro
240 V ac
115 V ac
Enclosed
Wall
Terminal Block
-
-
1000VA
105°C
RoHS, IECBSEN 615581, CE, ASNZS 61558..1, ASNZS 61558.1
137mm
192 mm
-
115mm
8.8kg
Carroll & Meynell DMC 2 kVA Auto-Transformer, 230 V ac Primary, 115 V ac Secondary
RS Stock No.347-6668BrandCarroll & MeynellManufacturers Part No.CM2000/A/US

BD 286.897

BD 286.897 Each (Exc. Vat)

Add to basket
Carroll & Meynell
230 V ac
115 V ac
DMC
-
-
-
-
2kVA
200°C
No
190mm
260 mm
-
205mm
20kg
Block Enclosed Auto-Transformer, 230 V ac Primary, 220 V, 230 V ac, 115 V Secondary
RS Stock No.293-2678BrandBlockManufacturers Part No.AIM 5.0/2.5

BD 112.175

BD 112.175 Each (Exc. Vat)

Add to basket
Block
230 V ac
220 V, 230 V ac, 115 V
Enclosed
Panel
Screw
5 A
Autotransformer For Adjustment of The Voltage On The Input and Output Sides
-
40°C
DIN EN 61558-2-13, IEC 61558-2-13, VDE 0570 part 2-13, EN 61558-2-13
117mm
97 mm
AIM
223mm
5.00kg
Carroll & Meynell DMC 3 kVA Auto-Transformer, 230 V Primary, 114.1 V ac Secondary
RS Stock No.436-8883BrandCarroll & MeynellManufacturers Part No.CM3000/A/US

BD 291.260

BD 291.260 Each (Exc. Vat)

Add to basket
Carroll & Meynell
230 V
114.1 V ac
DMC
-
-
-
-
3kVA
140°C
No
190mm
260 mm
-
205mm
20kg
Carroll & Meynell Encapsulated 1 kVA Auto-Transformer, 230 V ac Primary, 114.2 V ac Secondary
RS Stock No.347-6652BrandCarroll & MeynellManufacturers Part No.CM1000/A/US

BD 248.295

BD 248.295 Each (Exc. Vat)

Add to basket
Carroll & Meynell
230 V ac
114.2 V ac
Encapsulated
Surface
Plug-In
-
Step Down
1kVA
-
RoHS
190mm
260 mm
CM
205mm
-
Carroll & Meynell 30 kVA Auto-Transformer, 380 V, 415 V, 400 V Primary, 380 V, 400 V, 415 V Secondary
RS Stock No.436-8877BrandCarroll & MeynellManufacturers Part No.CMA30K/FM0

BD 998.931

BD 998.931 Each (Exc. Vat)

Add to basket
Carroll & Meynell
380 V, 415 V, 400 V
380 V, 400 V, 415 V
-
-
-
-
-
30kVA
200°C
BSEN 61558-2-23
260mm
350 mm
CMA
420mm
20kg

BD 754.669

BD 754.669 Each (Exc. Vat)

Add to basket
Carroll & Meynell
400 V, 415 V, 380 V
415 V, 400 V, 380 V
Enclosed
Floor Standing
-
-
-
10kVA
-
RoHS
325mm
270 mm
-
420mm
-
Block Open Frame 2 kVA Auto-Transformer, 480 V, 500 V ac Primary, 400 V ac Secondary
RS Stock No.738-7806BrandBlockManufacturers Part No.AT3 2-48/50-4

BD 149.577

BD 149.577 Each (Exc. Vat)

Add to basket
Block
480 V, 500 V ac
400 V ac
Open Frame
Wall, Floor Standing, Chassis
Screw
-
-
2kVA
40°C
No
155mm
110 mm
AT3
155mm
6.1kg
Block Open Type 1000 VA Auto-Transformer, 380 V, 415 V Primary, 3 x 400 V Secondary
RS Stock No.738-7852BrandBlockManufacturers Part No.AT3 10-38/42-4

BD 180.887

BD 180.887 Each (Exc. Vat)

Add to basket
Block
380 V, 415 V
3 x 400 V
Open Type
Bracket
Screw
-
-
1000VA
40°C
DIN EN 61558-2-13, UL 506, C-UL-US, CSA 22.2, IEC 61558-2-13, VDE 0570 part 2-13, VDE 0532
-
22 mm
-
-
7.00kg
Block Open Frame 15 kVA Auto-Transformer, 460 V ac, 440 V Primary, 400 V ac Secondary
RS Stock No.738-7880BrandBlockManufacturers Part No.AT3 15-44/46-4

BD 359.699

BD 359.699 Each (Exc. Vat)

Add to basket
Block
460 V ac, 440 V
400 V ac
Open Frame
Wall, Chassis, Floor Standing
Screw
-
-
15kVA
40°C
C-UL-US
215mm
150 mm
-
267mm
20.10kg
Block Open Frame 3.5 kVA Auto-Transformer, 208 V ac Primary, 400 V ac Secondary
RS Stock No.738-7812BrandBlockManufacturers Part No.AT3 3,5-20/21-4

BD 345.448

BD 345.448 Each (Exc. Vat)

Add to basket
Block
208 V ac
400 V ac
Open Frame
Wall, Floor Standing, Chassis
Screw
-
-
3.5kVA
40°C
No
220mm
150 mm
AT3
267mm
20kg
Block Open Frame 3.5 kVA Auto-Transformer, 230 V ac, 220 V Primary, 400 V ac Secondary
RS Stock No.738-7821BrandBlockManufacturers Part No.AT3 3,5-22/23-4

BD 345.815

BD 345.815 Each (Exc. Vat)

Add to basket
Block
230 V ac, 220 V
400 V ac
Open Frame
Wall, Chassis, Floor Standing
Screw
-
-
3.5kVA
40°C
C-UL-US
220mm
150 mm
-
267mm
20.70kg
Block Open Frame 10 kVA Auto-Transformer, 440 V, 460 V ac Primary, 400 V ac Secondary
RS Stock No.738-7856BrandBlockManufacturers Part No.AT3 10-44/46-4

BD 287.848

BD 287.848 Each (Exc. Vat)

Add to basket
Block
440 V, 460 V ac
400 V ac
Open Frame
Wall, Floor Standing, Chassis
Screw
-
-
10kVA
40°C
CSA 22.2, IEC 61558-2-13, VDE 0532, VDE 0570 part 2-13, C-UL-US, UL 506, DIN EN 61558-2-13
215mm
125 mm
AT3 10-44/46-4
267mm
14.40kg
Block Open Frame 3.5 kVA Auto-Transformer, 3 x 440 V ac, 460 V ac Primary, 400 V ac Secondary
RS Stock No.738-7837BrandBlockManufacturers Part No.AT3 3,5-44/46-4

BD 167.867

BD 167.867 Each (Exc. Vat)

Add to basket
Block
3 x 440 V ac, 460 V ac
400 V ac
Open Frame
Wall, Chassis, Floor Standing
Screw
-
-
3.5kVA
40°C
VDE 0532, DIN EN 61558-2-13, C-UL-US, IEC 61558-2-13, CSA 22.2, UL 506, VDE 0570 part 2-13
155mm
110 mm
AT3
155mm
6.10kg
Block Open Frame 3.5 kVA Auto-Transformer, 500 V ac, 480 V Primary, 400 V ac Secondary
RS Stock No.738-7830BrandBlockManufacturers Part No.AT3 3,5-48/50-4

BD 218.364

BD 218.364 Each (Exc. Vat)

Add to basket
Block
500 V ac, 480 V
400 V ac
Open Frame
Chassis, Floor Standing, Wall
Screw
-
-
3.5kVA
40°C
DIN EN 61558-2-13, CSA 22.2, VDE 0532, IEC 61558-2-13, C-UL-US, UL 506, VDE 0570 part 2-13
175mm
115 mm
-
220mm
8.7kg