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. 260-4238
Mfr. Part No.CM7501/230
TWD6,576
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. 123-7376
BrandRS PRO
TWD3,556
Each
units
230V ac 110V 750VA - - - BS 1363 BS EN 60309 10kg 195mm 195mm 265mm 195 x 195 x 265mm Portable
RS Stock No. 399-6140
Mfr. Part No.CMHT 3
TWD19,185
Each
units
230V ac ±55V ac 3kVA - 27A CMHT Hard Wire L-N-E BS EN 60309 32kg 370mm 230mm 300mm 285 x 225 x 380mm Free Standing
RS Stock No. 123-7380
BrandRS PRO
TWD5,847
Each
units
230V ac 110V 750VA - - - - - - 220mm 152mm 223mm 220 x 152 x 223mm Wall Mount
RS Stock No. 260-4301
Mfr. Part No.CM40002
TWD9,380
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. 123-7384
BrandRS PRO
TWD3,458
Each
units
230V ac 110V 1kVA - - - BS 1363 BS EN 60309 11kg 195mm 195mm 265mm 195 x 195 x 265mm Portable
RS Stock No. 123-7382
BrandRS PRO
TWD2,857
Each
units
110 (55-0-55)V 4 x 110V - - - - BS EN 60309 BS EN 60309 - - - - - Portable
RS Stock No. 260-4244
Mfr. Part No.CM7501
TWD5,731
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. 123-7378
BrandRS PRO
TWD6,746
Each
units
230V ac 24V 200VA - - - - BS EN 60309 - 197mm 162mm 194mm 197 x 162 x 194mm Wall Mount
RS Stock No. 260-4294
Mfr. Part No.CM33002
TWD3,816
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. 436-8805
Mfr. Part No.CM3000/230
TWD7,256
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. 436-8833
Mfr. Part No.CM5000/WM0
TWD16,850
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. 436-9808
Mfr. Part No.TIM500
BrandBlock
TWD7,160
Each
units
230V ac 115V ac 500VA - 2.17A TIM - - 9.1kg - 150mm 176mm - Chassis Mount
RS Stock No. 122-6714
BrandRS PRO
TWD3,747
Each
units
230V ac 110 (55V-0V-55V)V 1.5kVA - 2 x 16A - BS 1363 BS EN 60309 12kg 195mm 195mm 265mm 195 x 195 x 265mm Stand Alone
RS Stock No. 260-4351
Mfr. Part No.CM1500WM2
TWD7,010
Each
units
230V ac ±110V ac 750VA - 8.18A CM1500WM2 Hard Wire L-N-E BS EN 60309 10.5kg 200mm 230mm 230mm 200 x 230 x 230mm Wall Mount
RS Stock No. 812-9604
Mfr. Part No.EOU1/ELCB 13A
TWD3,894
Each
units
230V ac 230V ac - - 13A EOU Type G - British 3-Pin Type G - British 3-Pin - - - - - Free Standing
RS Stock No. 122-6719
BrandRS PRO
TWD5,601
Each
units
230V ac 110 (55V-0V-55V)V 600VA - 1 x 16A - - BS EN 60309 - 74mm 223mm 160mm 74 x 223 x 160mm Stand Alone
RS Stock No. 260-4834
Mfr. Part No.CM3300WM2
TWD9,918
Each
units
230V ac ±110V ac 1.65kVA - 15A CM3300WM2 Hard Wire L-N-E BS EN 60309 18kg 240mm 255mm 240mm 240 x 250 x 255mm Wall Mount
RS Stock No. 260-4339
Mfr. Part No.CM10K16
TWD31,364
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. 436-9785
Mfr. Part No.SIM500
BrandBlock
TWD7,200
Each
units
230V ac 12V ac 500VA 1 28.5A SIM 500 - - 9.1kg - 150mm 176mm - Chassis Mount