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. 123-7376
BrandRS PRO
£89.50
Each
Units
230V ac 110V 750VA - - - BS 1363 BS EN 60309 10kg 195mm 195mm 265mm 195 x 195 x 265mm Portable
RS Stock No. 123-7384
BrandRS PRO
£92.19
Each
Units
230V ac 110V 500VA - - - BS 1363 BS EN 60309 11kg 195mm 195mm 265mm 195 x 195 x 265mm Portable
RS Stock No. 122-6708
BrandRS PRO
£210.68
Each
Units
230V ac 110 (55V-0V-55V)V 4kVA - 2 x 16A - - BS EN 60309 30kg 315mm 305mm 280mm 315 x 305 x 280mm Stand Alone
RS Stock No. 122-6716
BrandRS PRO
£284.15
Each
Units
230V ac 110 (55V-0V-55V)V 3kVA - 1 x 16 A, 1 x 32 A - BS 1363 BS EN 60309 18kg 195mm 195mm 265mm 195 x 195 x 265mm Stand Alone
RS Stock No. 123-7377
BrandRS PRO
£456.00
Each
Units
230V ac 110V 5kVA - - - - - - 460mm 310mm 325mm 460 x 310 x 325mm Floor Mount
RS Stock No. 123-7379
BrandRS PRO
£460.60
Each
Units
400V 110 (55-0-55)V 5kVA - - - - - - 460mm 310mm 325mm 460 x 310 x 325mm Floor Mount
RS Stock No. 123-7382
BrandRS PRO
£64.74
Each
Units
110 (55-0-55)V 4 x 110V - - - - BS EN 60309 BS EN 60309 - - - - - Portable
RS Stock No. 123-7383
BrandRS PRO
£132.37
Each
Units
230V ac 230V 750VA - - - SCHUKO Schuko 12kg 195mm 195mm 265mm 195 x 195 x 265mm Portable
RS Stock No. 122-6721
BrandRS PRO
£142.11
Each
Units
230V ac 230V 1.5kVA - 2 x 16A - SCHUKO Schuko 18kg 350mm 242mm 353mm 350 x 242 x 353mm Stand Alone
RS Stock No. 122-6707
BrandRS PRO
£688.13
Each
Units
400V 110 (55V-0V-55V)V 10kVA - 2 x 32 A, 4 x 16 A - - BS EN 60309 - 440mm 430mm 500mm 440 x 430 x 500mm Stand Alone
RS Stock No. 123-7378
BrandRS PRO
£169.84
Each
Units
230V ac 24V 200VA - - - - BS EN 60309 - 197mm 162mm 194mm 197 x 162 x 194mm Wall Mount
RS Stock No. 122-6714
BrandRS PRO
£84.92
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. 123-7380
BrandRS PRO
£147.23
Each
Units
230V ac 110V 750VA - - - - - - 220mm 152mm 223mm 220 x 152 x 223mm Wall Mount
RS Stock No. 122-6711
BrandRS PRO
£62.23
Each
Units
230V ac 110 (55V-0V-55V)V 2.25kVA - 2 x 16A - BS 1363 BS EN 60309 16kg 195mm 195mm 265mm 195 x 195 x 265mm Stand Alone
RS Stock No. 123-7381
BrandRS PRO
£114.86
Each
Units
230V ac 230V 375VA - - - - Schuko 10kg 195mm 195mm 265mm 195 x 195 x 265mm Portable
RS Stock No. 122-6705
BrandRS PRO
£98.19
Each
Units
230V ac 110 (55V-0V-55V)V 3.3kVA - 2 x 16A - BS 1363 BS EN 60309 18kg 195mm 195mm 265mm 195 x 195 x 265mm Stand Alone
RS Stock No. 122-6706
BrandRS PRO
£233.69
Each
Units
230V ac 110 (55V-0V-55V)V 1.65kVA - 2 x 16A - - BS EN 60309 - 270mm 228mm 244mm 270 x 228 x 244mm Wall Mount
RS Stock No. 122-6710
BrandRS PRO
£93.44
Each
Units
230V ac 110 (55V-0V-55V)V 3kVA - 1 x 16 A, 1 x 32 A - BS 1363 BS EN 60309 18kg 195mm 195mm 265mm 195 x 195 x 265mm Stand Alone
RS Stock No. 122-6709
BrandRS PRO
£132.72
Each
Units
230V ac 230V 1.5kVA - 2 x 13A - - BS1363 18kg 195mm 195mm 265mm 195 x 195 x 265mm Stand Alone
RS Stock No. 122-6717
BrandRS PRO
£103.71
Each
Units
230V ac 230V 750VA - 1 x 13A - - BS1363 10kg 195mm 195mm 265mm 195 x 195 x 265mm Stand Alone
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