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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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In Stock RS PRO Site Transformer, 230 V ac Primary, 110 V Secondary, 4 A O/P RS Stock No. 123-7384 Subtotal (1 unit) SGD252.09(exc. GST) SGD252.09/unit Quantity	230 V ac	-	Site Transformer	110 V	-	-	-	-	4A	Portable	-	BS1363	-	BS EN 60309	11kg	195mm	-	195mm	265mm	-	-	BSEN60309	-	-	-
In Stock RS PRO 1 Site Transformer 2.25 kVA, 230 V ac Primary, 110 V (55V-0V-55V) Secondary, 16 A O/P RS Stock No. 122-6711 Subtotal (1 unit) SGD289.50(exc. GST) SGD289.50/unit Quantity	230 V ac	-	Site Transformer	110 V (55V-0V-55V)	-	-	1	-	16A	Stand Alone	-	BS1363	2.25kVA	BS EN 60309	16kg	195mm	-	195mm	265mm	-	-	BSEN 61558, BS EN 61558-20-23, RoHS Directive 2011/65/EU	-	-	-
In Stock RS PRO Site Transformer, 110 V Primary, 230 V Secondary, 16 A O/P RS Stock No. 122-6712 Subtotal (1 unit) SGD569.78(exc. GST) SGD569.78/unit Quantity	110 V	-	Site Transformer	230 V	-	-	-	-	16A	Stand Alone	-	BS	-	BS EN 60309	18kg	195mm	-	195mm	265mm	-	-	BSEN60309	-	-	-
In Stock RS PRO Site Transformer, 230 V ac Primary, 230 V ac Secondary, 13 A O/P RS Stock No. 122-6709 Subtotal (1 unit) SGD583.55(exc. GST) SGD583.55/unit Quantity	230 V ac	-	Site Transformer	230 V ac	-	-	-	-	13A	Stand Alone	-	BS1363	-	BS1363	18kg	195mm	-	195mm	265mm	-	-	No	-	-	-
In Stock RS PRO 1 Site Transformer, 230 V ac Primary, 110 V (55V-0V-55V) Secondary, 16 A O/P RS Stock No. 122-6705 Subtotal (1 unit) SGD440.30(exc. GST) SGD440.30/unit Quantity	230 V ac	-	Site Transformer	110 V (55V-0V-55V)	-	-	1	-	16A	Stand Alone	-	BS1363	-	BS EN 60309	18kg	195mm	-	195mm	265mm	-	-	BS EN 61558-20-23, BSEN 61558, RoHS Directive 2011/65/EU	-	-	-
In Stock RS PRO Site Transformer 5 kVA, 400 V Primary, 110 V (55-0-55) Secondary RS Stock No. 123-7379 Subtotal (1 unit) SGD1,514.05(exc. GST) SGD1,514.05/unit Quantity	400 V	-	Site Transformer	110 V (55-0-55)	-	-	-	-	-	Floor	-	-	5kVA	-	-	460mm	-	310mm	325mm	-	-	No	-	-	-
In Stock RS PRO Site Transformer, 230 V ac Primary, 110 V Secondary RS Stock No. 123-7376 Subtotal (1 unit) SGD259.48(exc. GST) SGD259.48/unit Quantity	230 V ac	-	Site Transformer	110 V	-	-	-	-	-	Portable	-	BS1363	-	BS EN 60309	10kg	195mm	-	195mm	265mm	-	-	IP44	-	-	-
In Stock RS PRO Splitter Box, 110 V (55-0-55) Primary, 4 x 110 V Secondary, 16 A O/P RS Stock No. 123-7382 Subtotal (1 unit) SGD162.14(exc. GST) SGD162.14/unit Quantity	110 V (55-0-55)	-	Splitter Box	4 x 110 V	-	-	-	-	16A	Portable	-	BS	-	BS EN 60309	-	5m	-	-	-	-	-	BSEN60309	-	-	-
In Stock RS PRO 1 Site Transformer, 230 V ac Primary, 230 V ac Secondary, 16 A O/P RS Stock No. 122-6721 Subtotal (1 unit) SGD483.38(exc. GST) SGD483.38/unit Quantity	230 V ac	-	Site Transformer	230 V ac	-	-	1	-	16A	Stand Alone	-	Schuko	-	Schuko	18kg	350mm	-	242mm	353mm	-	-	RoHS	-	-	-
Temporarily out of stock RS PRO Site Transformer, 230 V ac Primary, 110 V (55V-0V-55V) Secondary, 32 A O/P RS Stock No. 122-6716 Subtotal (1 unit) SGD1,075.13(exc. GST) SGD1,075.13/unit Quantity	230 V ac	-	Site Transformer	110 V (55V-0V-55V)	-	-	-	-	32A	Stand Alone	-	BS1363	-	BS EN 60309	18kg	195mm	-	195mm	265mm	-	-	BS EN 61558, BS EN 60529, RoHS, BS EN 61558-20-23	-	-	-
In Stock RS PRO Site Transformer 5 kVA, 230 V ac Primary, 110 V (55V-0V-55V) Secondary, 16 A O/P RS Stock No. 122-6708 Subtotal (1 unit) SGD870.78(exc. GST) SGD870.78/unit Quantity	230 V ac	-	Site Transformer	110 V (55V-0V-55V)	-	-	-	-	16A	Stand Alone	-	-	5kVA	BS EN 60309	30kg	315mm	-	305mm	280mm	-	-	BSEN60309	-	-	-
In Stock RS PRO Site Transformer, 230 V ac Primary, 230 V ac Secondary, 13 A O/P RS Stock No. 122-6717 Subtotal (1 unit) SGD311.38(exc. GST) SGD311.38/unit Quantity	230 V ac	-	Site Transformer	230 V ac	-	-	-	-	13A	Stand Alone	-	BS1363	-	BS1363	10kg	195mm	-	195mm	265mm	-	-	IP44	-	-	-
In Stock RS PRO Site Transformer 5 kVA, 230 V ac Primary, 110 V Secondary RS Stock No. 123-7377 Subtotal (1 unit) SGD1,514.05(exc. GST) SGD1,514.05/unit Quantity	230 V ac	-	Site Transformer	110 V	-	-	-	-	-	Floor	-	-	5kVA	-	-	460mm	-	310mm	325mm	-	-	No	-	-	-
Temporarily out of stock RS PRO Site Transformer, 230 V ac Primary, 110 V (55V-0V-55V) Secondary, 16 A O/P RS Stock No. 122-6714 Subtotal (1 unit) SGD255.13(exc. GST) SGD255.13/unit Quantity	230 V ac	-	Site Transformer	110 V (55V-0V-55V)	-	-	-	-	16A	Stand Alone	-	BS1363	-	BS EN 60309	12kg	195mm	-	195mm	265mm	-	-	IP44	-	-	-
In Stock RS PRO Site Transformer 20 kVA, 230 V ac Primary, 230 V ac Secondary, 16 A O/P RS Stock No. 123-7381 Subtotal (1 unit) SGD233.10(exc. GST) SGD233.10/unit Quantity	230 V ac	-	Site Transformer	230 V ac	-	-	-	-	16A	Portable	-	-	20kVA	Schuko	10kg	195mm	-	195mm	265mm	-	-	No	-	-	-
In Stock RS PRO Site Transformer, 230 V ac Primary, 110 V (55V-0V-55V) Secondary, 32 A O/P RS Stock No. 122-6710 Subtotal (1 unit) SGD345.26(exc. GST) SGD345.26/unit Quantity	230 V ac	-	Site Transformer	110 V (55V-0V-55V)	-	-	-	-	32A	Stand Alone	-	BS1363	-	BS EN 60309	18kg	195mm	-	195mm	265mm	-	-	BSEN60309 - IP44	-	-	-
In Stock RS PRO 1 Site Transformer, 230 V ac Primary, 110 V Secondary, 6 A O/P RS Stock No. 123-7380 Subtotal (1 unit) SGD450.17(exc. GST) SGD450.17/unit Quantity	230 V ac	-	Site Transformer	110 V	-	-	1	-	6A	Wall	-	-	-	-	-	220mm	-	152mm	223mm	-	-	BS EN 60529, RoHS Directive 2011/65/EU, BS EN 61558, BS EN 61558-20-23	-	-	-
In Stock RS PRO 3 Site Transformer 10 kVA, 400 V Primary, 110 V (55V-0V-55V) Secondary, 32 A O/P RS Stock No. 122-6707 Subtotal (1 unit) SGD2,286.40(exc. GST) SGD2,286.40/unit Quantity	400 V	-	Site Transformer	110 V (55V-0V-55V)	-	-	3	-	32A	Stand Alone	-	-	10kVA	BS EN 60309	-	440mm	-	430mm	500mm	-	-	BSEN60309	-	-	-
In Stock RS PRO Site Transformer, 230 V ac Primary, 110 V (55V-0V-55V) Secondary RS Stock No. 122-6718 Subtotal (1 unit) SGD1,223.78(exc. GST) SGD1,223.78/unit Quantity	230 V ac	-	Site Transformer	110 V (55V-0V-55V)	-	-	-	-	-	Stand Alone	-	-	-	-	-	350mm	-	242mm	353mm	-	-	No	-	-	-
In Stock RS PRO 1 Site Transformer, 230 V ac Primary, 230 V ac Secondary RS Stock No. 123-7383 Subtotal (1 unit) SGD515.72(exc. GST) SGD515.72/unit Quantity	230 V ac	-	Site Transformer	230 V ac	-	-	1	-	-	Portable	-	Schuko	-	Schuko	12kg	195mm	-	195mm	265mm	-	-	RoHS	-	-	-