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  Autotransformers (51 items)

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Aihara Denki 10VA Autotransformer, 100V ac Primary, 14 V ac, 16 V ac, 18 V ac, 20 V ac Secondary / 3201004 (1 offer) 
UL506 (file E145880) VDE, SEV, UL, ;sub>C ;/sub>UL, VDE 0551 3N 60742. All transformers come with plate washer, protective pads and screws, and bolt/washer for attachment via single hole.Always mak...
Aihara Denki
SD-1805
from £ 20.99*
per piece
Aihara Denki 40VA Autotransformer, 100 V ac, 110 V ac Primary, 12 V ac, 14 V ac, 16 V ac, 18 V ac Secondary / 3201032 (1 offer) 
UL506 (file E145880) VDE, SEV, UL, ;sub>C ;/sub>UL, VDE 0551 3N 60742. All transformers come with plate washer, protective pads and screws, and bolt/washer for attachment via single hole.Always mak...
Aihara Denki
SD-182
from £ 43.511*
per piece
Aihara Denki 6VA Autotransformer, 100V ac Primary, 2.5 V ac, 5 V ac, 6 V ac Secondary / 3200792 (1 offer) 
UL506 (file E145880) VDE, SEV, UL, ;sub>C ;/sub>UL, VDE 0551 3N 60742. All transformers come with plate washer, protective pads and screws, and bolt/washer for attachment via single hole.Always mak...
Aihara Denki
SD-0610
from £ 14.66*
per piece
Aihara Denki 8VA Autotransformer, 100V ac Primary, 12 V ac, 14 V ac, 16 V ac Secondary / 3200900 (1 offer) 
UL506 (file E145880) VDE, SEV, UL, ;sub>C ;/sub>UL, VDE 0551 3N 60742. All transformers come with plate washer, protective pads and screws, and bolt/washer for attachment via single hole.Always mak...
Aihara Denki
SD-1605
from £ 15.237*
per piece
Block 100VA Autotransformer, 230V ac Primary, 115 V ac Secondary / 3101140 (1 offer) 
These units do NOT provide isolation from the mains. Portable Step-Down Auto Transformers SAT series. Portable encapsulated autowound transformers providing a 115Vac supply via a standard 3-pin US ...
Block Transformatoren
SAT100
from £ 61.331*
per piece
Block 10kVA Open Frame Autotransformer, 200 V ac, 208 V ac Primary, 400 V ac Secondary, 3 UI 150/77 Core / 7387846 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 10-20/21-4
£ 907.464*
per piece
Block 10kVA Open Frame Autotransformer, 380 V ac, 415 V ac Primary, 400 V ac Secondary, 3 UI 90/31,5 Core / 7387852 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 10-38/42-4
from £ 198.03*
per piece
Block 10kVA Open Frame Autotransformer, 440 V ac, 460 V ac Primary, 400 V ac Secondary, 3 UI 114/40 Core / 7387856 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 10-44/46-4
from £ 326.364*
per piece
Block 10kVA Open Frame Autotransformer, 480 V ac, 500 V ac Primary, 400 V ac Secondary, 3 UI 114/64 Core / 7387865 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 10-48/50-4
£ 445.80*
per piece
Block 10kVA Open Frame Autotransformer, 575 V ac, 600 V ac Primary, 400 V ac Secondary, 3 UI 132/72 Core / 7387868 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 10-58/60-4
£ 620.988*
per piece
Block 15kVA Open Frame Autotransformer, 200 V ac, 208 V ac Primary, 400 V ac Secondary, 3 UI 180/78 Core / 7387871 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 15-20/21-4
£ 1,204.682*
per piece
Block 15kVA Open Frame Autotransformer, 220 V ac, 230 V ac Primary, 400 V ac Secondary, 3 UI 180/63 Core / 7387896 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 15-69-4
£ 1,043.728*
per piece
Block 15kVA Open Frame Autotransformer, 220 V ac, 230 V ac Primary, 400 V ac Secondary, 3 UI 180/78 Core / 7387874 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 15-22/23-4
£ 1,120.641*
per piece
Block 15kVA Open Frame Autotransformer, 440 V ac, 460 V ac Primary, 400 V ac Secondary, 3 UI 114/64 Core / 7387880 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 15-44/46-4
from £ 404.049*
per piece
Block 15kVA Open Frame Autotransformer, 480 V ac, 500 V ac Primary, 400 V ac Secondary, 3 UI 132/72 Core / 7387884 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 15-48/50-4
£ 566.112*
per piece
Block 200VA Autotransformer, 230V ac Primary, 115 V ac Secondary / 3101156 (1 offer) 
These units do NOT provide isolation from the mains. Portable Step-Down Auto Transformers SAT series. Portable encapsulated autowound transformers providing a 115Vac supply via a standard 3-pin US ...
Block Transformatoren
SAT200
from £ 61.796*
per piece
Block 25kVA Open Frame Autotransformer, 200 V ac, 208 V ac Primary, 400 V ac Secondary, 3 UI 210/88 Core / 7387890 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 25-20/21-4
£ 1,999.682*
per piece
Block 25kVA Open Frame Autotransformer, 220 V ac, 230 V ac Primary, 400 V ac Secondary, 3 UI 210/88 Core / 7387900 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 25-22/23-4
£ 1,909.998*
per piece
Block 25kVA Open Frame Autotransformer, 240 V ac, 346 V ac Primary, 400 V ac Secondary, 3 UI 210/73 Core / 7387903 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 25-24/35-4
£ 1,609.434*
per piece
Block 25kVA Open Frame Autotransformer, 380 V ac, 415 V ac Primary, 400 V ac Secondary, 3 UI 114/40 Core / 7387907 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 25-38/42-4
from £ 409.187*
per piece
Block 25kVA Open Frame Autotransformer, 440 V ac, 460 V ac Primary, 400 V ac Secondary, 3 UI 132/72 Core / 7387916 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 25-44/46-4
£ 644.817*
per piece
Block 25kVA Open Frame Autotransformer, 480 V ac, 500 V ac Primary, 400 V ac Secondary, 3 UI 150/77 Core / 7387919 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 25-48/50-4
£ 865.815*
per piece
Block 2kVA Open Frame Autotransformer, 220 V ac, 230 V ac Primary, 400 V ac Secondary, 3 UI 90/51,5 Core / 7387795 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 2-22/23-4
from £ 259.697*
per piece
Block 2kVA Open Frame Autotransformer, 440 V ac, 460 V ac Primary, 400 V ac Secondary, 3 UI 75/26,5 Core / 7387802 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 2-44/46-4
from £ 149.58*
per piece
Block 2kVA Open Frame Autotransformer, 480 V ac, 500 V ac Primary, 400 V ac Secondary, 3 UI 75/41,5 Core / 7387806 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 2-48/50-4
from £ 181.87*
per piece
Block 2kVA Open Frame Autotransformer, 690V ac Primary, 400 V ac Secondary, 3 UI 90/41,5 Core / 7387818 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 2-69-4
from £ 256.12*
per piece
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 / 7387837 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 3,5-44/46-4
from £ 185.467*
per piece
Block 3.5kVA Open Frame Autotransformer, 200 V ac, 208 V ac Primary, 400 V ac Secondary, 3 UI 114/64 Core / 7387812 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 3,5-20/21-4
from £ 370.013*
per piece
Block 3.5kVA Open Frame Autotransformer, 220 V ac, 230 V ac Primary, 400 V ac Secondary, 3 UI 114/64 Core / 7387821 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 3,5-22/23-4
from £ 384.982*
per piece
Block 3.5kVA Open Frame Autotransformer, 240 V ac, 346 V ac Primary, 400 V ac Secondary, 3 UI 114/40 Core / 7387824 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 3,5-24/35-4
£ 360.489*
per piece
Block 3.5kVA Open Frame Autotransformer, 480 V ac, 500 V ac Primary, 400 V ac Secondary, 3 UI 90/41,5 Core / 7387830 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 3,5-48/50-4
from £ 237.808*
per piece
Block 3.5kVA Open Frame Autotransformer, 690V ac Primary, 400 V ac Secondary, 3 UI 114/40 Core / 7387843 (1 offer) 
UL 5085-1/2 CSA 22.2. AT3 Series Autotransformers. Range of high efficiency low heat loss 3 phase auto transformers. Common input and output windings Easy installation-mounting holes provided Screw...
Block Transformatoren
AT3 3,5-69-4
from £ 351.243*
per piece
Block 300VA Autotransformer, 230V ac Primary, 115 V ac Secondary / 3101162 (1 offer) 
These units do NOT provide isolation from the mains. Portable Step-Down Auto Transformers SAT series. Portable encapsulated autowound transformers providing a 115Vac supply via a standard 3-pin US ...
Block Transformatoren
SAT300
from £ 82.299*
per piece
Block 390VA Enclosed Autotransformer, 115 V ac, 230 V ac Primary, 115 V ac, 220 V ac, 230 V ac, 240 V ac Secondary / 2932656 (2 offers) 
Primary Voltage Rating = 115 V ac, 230 V ac Secondary Voltage Rating = 115 V ac, 220 V ac, 230 V ac, 240 V ac Power Rating = 390VA Construction = Enclosed Mounting Type = Panel Mount Termination Ty...
Block Transformatoren
AIM 1.6/0.8
from £ 66.281*
per piece
Block 500VA Autotransformer, 230V ac Primary, 115 V ac Secondary / 3288051 (1 offer) 
These units do NOT provide isolation from the mains. Portable Step-Down Auto Transformers SAT series. Portable encapsulated autowound transformers providing a 115Vac supply via a standard 3-pin US ...
Block Transformatoren
SAT 500
from £ 134.848*
per piece
Block 600VA Autotransformer, 230V ac Primary, 115 V ac Secondary / 3288067 (1 offer) 
These units do NOT provide isolation from the mains. Portable Step-Down Auto Transformers SAT series. Portable encapsulated autowound transformers providing a 115Vac supply via a standard 3-pin US ...
Block Transformatoren
SAT 600
from £ 160.19*
per piece
Block Enclosed Autotransformer, 115 V ac, 230 V ac Primary, 115 V ac, 220 V ac, 230 V ac Secondary / 2932678 (2 offers) 
These units do NOT provide isolation from the mains. Encapsulated Step-Up/Step-Down AIM series. From Block, these short circuit proof encapsulated autowound transformers allow step up or step down ...
Block Transformatoren
AIM 5.0/2.5
from £ 127.156*
per piece
Block Enclosed Autotransformer, 115 V ac, 230 V ac Primary, 115 V ac, 220 V ac, 230 V ac, 240 V ac Secondary / 2932662 (2 offers) 
These units do NOT provide isolation from the mains. Encapsulated Step-Up/Step-Down AIM series. From Block, these short circuit proof encapsulated autowound transformers allow step up or step down ...
Block Transformatoren
AIM 3.2/1.6
from £ 95.84*
per piece
Block Enclosed Autotransformer, 115 V ac, 230 V ac Primary, 115 V ac, 220 V ac, 230 V ac, 240 V ac Secondary / 4369842 (2 offers) 
These units do NOT provide isolation from the mains. Encapsulated Step-Up/Step-Down AIM series. From Block, these short circuit proof encapsulated autowound transformers allow step up or step down ...
Block Transformatoren
AIM10/5
from £ 380.893*
per piece
Block Enclosed Autotransformer, 115 V ac, 230 V ac Primary, 115 V ac, 220 V ac, 230 V ac, 240 V ac Secondary / 4369858 (2 offers) 
These units do NOT provide isolation from the mains. Encapsulated Step-Up/Step-Down AIM series. From Block, these short circuit proof encapsulated autowound transformers allow step up or step down ...
Block Transformatoren
AIM16/8
from £ 520.572*
per piece
Carroll & Meynell 10kVA Enclosed Autotransformer, 380 V, 400 V, 415 V Primary, 380 V, 400 V, 415 V Secondary / 4368861 (1 offer) 
These units do NOT provide isolation from the mains. Carroll ; Meynell 3 Phase Autotransformers. From Carroll ; Meynell, these 3 phase autotransformers have been designed for use as European supply...
Carroll & Meynell
CMA10K/FM0
£ 1,001.415*
per piece
Carroll & Meynell 1kVA Autotransformer, 230V ac Primary, 114.2V ac Secondary, Bobbin Core / 3476652 (1 offer) 
These units do NOT provide isolation from the mains. This series does not convert the UK 50Hz frequency to the US mains 60Hz frequency. Portable Step-Down Auto Transformers CM series. The CM series...
Carroll & Meynell
CM1000/A/US
from £ 270.67*
per piece
Carroll & Meynell 2kVA Autotransformer, 230V ac Primary, 115V ac Secondary, Bobbin Core / 3476668 (1 offer) 
These units do NOT provide isolation from the mains. This series does not convert the UK 50Hz frequency to the US mains 60Hz frequency. Portable Step-Down Auto Transformers CM series. The CM series...
Carroll & Meynell
CM2000/A/US
£ 305.198*
per piece
Carroll & Meynell 30kVA Autotransformer, 380 V, 400 V, 415 V Primary, 380 V, 400 V, 415 V Secondary, Bobbin Core / 4368877 (1 offer) 
These units do NOT provide isolation from the mains. Carroll ; Meynell 3 Phase Autotransformers. From Carroll ; Meynell, these 3 phase autotransformers have been designed for use as European supply...
Carroll & Meynell
CMA30K/FM0
£ 1,337.382*
per piece
Carroll & Meynell 3kVA Autotransformer, 230V Primary, 114.1V ac Secondary, Bobbin Core / 4368883 (1 offer) 
These units do NOT provide isolation from the mains. This series does not convert the UK 50Hz frequency to the US mains 60Hz frequency. Portable Step-Down Auto Transformers CM series. The CM series...
Carroll & Meynell
CM3000/A/US
£ 314.494*
per piece
RS Pro
504183
from £ 62.658*
per piece
RS PRO 150VA Enclosed Autotransformer, 220 V ac, 230 V ac, 240 V ac Primary, 115V ac Secondary / 504189 (1 offer) 
These units do NOT provide isolation from the mains. Step-Up/Step-Down Auto Transformers. Autowound transformers for step-up or step-down of mains voltages at 50/60Hz. ,. Compact construction Full ...
RS Pro
504189
from £ 83.26*
per piece
RS Pro
504206
from £ 279.497*
per piece
RS Pro
504199
from £ 105.584*
per piece
RS Pro
504195
from £ 160.143*
per piece
RS Pro
504202
from £ 63.925*
per piece
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* Prices with asterisk are net prices excl. statutory VAT.
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