Safety Site Transformers

Safety site transformers are often used with industrial and power tools. They provide the user with protection by isolating the tools from the main power supply to prevent overloading and minimise shock risk.

How do safety site transformers work?

The transformer consists of two coils of wire around an iron core. The incoming, or primary, coil converts the electric field into a magnetic one, inducing an electric field in second coil without actually touching it. The voltage can be stepped up or down by varying the number of turns in the coil. Safety site transformers can be used to step down UK mains voltage to, for example, 110V CTE (centre tap earthed) to limit the power of a potential electric shock.

Types of safety site transformers

Safety site transformers can have different input and output voltage ratings. As they're often used outside, they're designed with the appropriate socket fittings. They tend to be heavy duty, with strong lifting handles, to withstand harsh industrial or site conditions. They can also be free standing and portable, wall mounted or even hung, depending on your needs.


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Description Price Primary Voltage Rating Secondary Voltage Rating Power Rating Number of Phases Output Current Series Plug Type Socket Type Weight Length Width Depth Dimensions Mounting Type
RS Stock No. 122-6715
BrandRS PRO
£255.20
Each
Units
230V ac 110 (55V-0V-55V)V 1.65kVA - 2 x 16A - - BS EN 60309 - 270mm 180mm 244mm 270 x 180 x 244mm Wall Mount
RS Stock No. 124-9719
BrandRS PRO
£793.80
Each
Units
400V 110V 7.5kVA - 16 A, 32 A - - BS EN 60309 - 260mm 675mm 620mm 260 x 675 x 620mm Base Mount, Stand Alone
RS Stock No. 122-6718
BrandRS PRO
£389.94
Each
Units
230V ac 110 (55V-0V-55V)V 2.5kVA - - - - - - 350mm 242mm 353mm 350 x 242 x 353mm Stand Alone
RS Stock No. 124-9720
BrandRS PRO
£652.14
Each
Units
230V ac 110V 5kVA - 16A - - BS EN 60309 - 260mm 675mm 620mm 260 x 675 x 620mm Base Mount, Stand Alone
RS Stock No. 122-6713
BrandRS PRO
£129.28
Each
Units
230V ac 230V 1.5kVA - 2 x 13A - - BS1363 12kg 195mm 195mm 265mm 195 x 195 x 265mm Stand Alone
RS Stock No. 122-6712
BrandRS PRO
£110.28
Each
Units
110V 230V 3.3kVA - 2 x 16A - BS EN 60309 BS EN 60309 18kg 195mm 195mm 265mm 195 x 195 x 265mm Stand Alone
RS Stock No. 812-9572
Mfr. Part No.CM3300/200/SU
£117.88
Each
Units
110V ac 230V 3kVA - 2 x 16A CM3000 BS EN 60309 BS EN 60309 18kg 205mm 240mm 265mm 205 x 240 x 265mm Free Hanging
RS Stock No. 260-4288
Mfr. Part No.CM22502
£99.35
Each
Units
230V ac ±55V ac 1125VA 1 8A CM22502 Type G - British 3-Pin BS EN 60309 16kg 195mm 240mm 265mm 195 x 240 x 265mm Free Standing
RS Stock No. 436-8805
Mfr. Part No.CM3000/230
£160.50
Each
Units
230V ac 230V ac 3kVA 1 13A CM3000/230 Type G - British 3-Pin Type G - British 3-Pin 18kg 190mm 190mm 260mm 190 x 190 x 260mm Free Standing
RS Stock No. 436-8798
Mfr. Part No.CM1500/230
£152.28
Each
Units
230V ac 230V ac 1.5kVA 1 - CM1500/230 Type G - British 3-Pin Type G - British 3-Pin 11.5kg 165mm 165mm 220mm 165 x 165 x 220mm Free Standing
RS Stock No. 260-4250
Mfr. Part No.CM10001
£84.84
Each
Units
230V ac ±55V ac 500VA 1 4A CM10001 Type G - British 3-Pin BS EN 60309 10.5kg 170mm 210mm 180mm 170 x 210 x 180mm Free Standing
RS Stock No. 260-4294
Mfr. Part No.CM33002
£98.66
Each
Units
230V ac ±55V ac 1.65kVA 1 10A CM33002 Type G - British 3-Pin BS EN 60309 18kg 195mm 240mm 265mm 195 x 240 x 265mm Free Standing
RS Stock No. 260-4238
Mfr. Part No.CM7501/230
£119.88
Each
Units
230V ac 230V ac 750VA 1 - CM7501 Type G - British 3-Pin Type G - British 3-Pin 9kg 180mm 220mm 170mm 180 x 220 x 170mm Free Standing
RS Stock No. 260-4301
Mfr. Part No.CM40002
£235.13
Each
Units
230V ac 112 2kVA 1 15A CM40002 Hard Wire 3-Wire BS EN 60309 30kg 270mm 320mm 280mm 270 x 320 x 280mm Free Standing
RS Stock No. 260-4339
Mfr. Part No.CM10K16
£782.19
Each
Units
230V ac ±55V ac 10kVA 1 2 x 32 A, 4 x 16 A CM10K16 Hard Wire L-N-E BS EN 60309 86kg 390mm 430mm 390mm 390 x 430 x 600mm Free Standing
RS Stock No. 260-4244
Mfr. Part No.CM7501
£49.44
Each
Units
230V ac 110V ac 375VA 1 3A CM7501 Type G - British 3-Pin BS EN 60309 9kg 180mm 220mm 240mm 180 x 220 x 240mm Free Standing
RS Stock No. 905-6248
Mfr. Part No.CM5000/210/PT/RS
£194.31
Each
Units
230V ac ±55V ac 2.5kVA 1 1 x 32 A, 2 x 16 A - Hard Wire L-N-E BS EN 60309 32kg 355mm 265mm 280mm 355 x 265 x 280mm Free Standing
RS Stock No. 260-4272
Mfr. Part No.CM15002
£93.49
Each
Units
230V ac ±55V ac 750VA 1 6A CM15002 Type G - British 3-Pin BS EN 60309 11.5kg 180mm 255mm 170mm 170 x 255 x 180mm Free Standing
RS Stock No. 436-8833
Mfr. Part No.CM5000/WM0
£479.62
Each
Units
230V ac ±110V ac 3kVA 1 31.81A CM5000/WM0 Hard Wire L-N-E - 35kg 350mm 460mm 330mm 330 x 355 x 267mm Wall Mount
RS Stock No. 260-4367
Mfr. Part No.CM3300WM0
£222.30
Each
Units
230V ac ±110V ac 1.65kVA - 15A CM3300WM0 Hard Wire L-N-E - 18kg 240mm 200mm 255mm 240 x 200 x 255mm Wall Mount
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