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Toroidal Transformers

Toroidal transformers are magnetic core transformers manufactured within a toroidal (ring or doughnut) shape.

How do Toroidal Transformers they work?

Transformers use the principles of induction to transfer energy in the form of electricity via their internal coli. They make it possible for devices with different requirements to run off the same source of voltage. They are able to step the voltage up or down as needed. They can also increase and decrease current and alter electrical energy in other ways.

Toroidal transformers can be open or encapsulated, and some models are completed with PCB mounting pins.

Benefits of Toroidal Transformers

Transformers take up less space than their traditional square counterparts using less real estate. Some manufacturers suggest that fitting a toroidal transformer with flying leads instead of terminal blocks can save you up to 60% space.
These transformers are easy to mount, some even just require a single bolt to fix them in place.
They have flexible dimensions.
Toroidal transformers offer great noise reduction and emit less EMI (electromagnetic interference) than standard transformers.
They have a low stray field.
They are quieter to run than standard transformers and create less hum noise.
They present excellent value for money. Toroidal cores take less energy to maintain a magnetic field, and therefore use less power.

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In Stock RS PRO 230 V ac 2 x 15 V ac Toroidal Transformer 2 Output 120 VA RS stock no. 671-8990 Subtotal (1 unit) R 948,96(exc. VAT) R 948,96/unit Quantity	230 V ac	Toroidal Transformer	2 x 15 V ac	-	2	48mm	120VA	1.4kg	96mm	-	-	-	-	-	-	-	Copper Conductor	No
In Stock RS PRO 230 V ac 2 x 12 V ac Toroidal Transformer 2 Output 50 VA RS stock no. 671-8956 Subtotal (1 unit) R 744,02(exc. VAT) R 744,02/unit Quantity	230 V ac	Toroidal Transformer	2 x 12 V ac	-	2	33mm	50VA	740g	80mm	-	-	-	-	-	-	-	Copper Conductor Termination Wire	No
In Stock RS PRO 230 V ac 2 x 18 V ac Toroidal Transformer 2 Output 120 VA RS stock no. 671-9003 Subtotal (1 unit) R 935,19(exc. VAT) R 935,19/unit Quantity	230 V ac	Toroidal Transformer	2 x 18 V ac	-	2	48mm	120VA	1.4kg	96mm	-	-	-	-	-	-	-	Copper Conductor	No
In Stock RS PRO 230 V ac 2 x 18 V ac Toroidal Transformer 2 Output 50 VA RS stock no. 671-9104 Subtotal (1 unit) R 728,12(exc. VAT) R 728,12/unit Quantity	230 V ac	Toroidal Transformer	2 x 18 V ac	-	2	33mm	50VA	740g	80mm	-	-	-	-	-	-	-	Copper Conductor Termination Wire	No
In Stock RS PRO 230 V ac 2 x 40 V ac Toroidal Transformer 2 Output 500 VA, EN 60065, UL 506, EN 61558-1, UL 5085-1 RS stock no. 123-4034 Subtotal (1 unit) R 3 932,56(exc. VAT) R 3 932,56/unit Quantity	230 V ac	Toroidal Transformer	2 x 40 V ac	-	2	65mm	500VA	3.5kg	148mm	-	-	-	-	-	Surface	-	Wire	EN 60065, UL 506, EN 61558-1, UL 5085-1
In Stock RS PRO 230 V ac 2 x 18 V Toroidal Transformer 2 Output 15 VA, VDE0570 Class II, IEC61558 Class II, EN61558 Class II, RS stock no. 173-0081 Subtotal (1 box of 40 units) R 16 356,04(exc. VAT) R 408,901/unit Quantity	230 V ac	Toroidal Transformer	2 x 18 V	-	2	31mm	15VA	365g	60mm	-	-	-	-	180°C	-	-	Lead	VDE0570 Class II, IEC61558 Class II, EN61558 Class II, UL506
In Stock RS PRO 230 V ac 2 x 25 V ac Toroidal Transformer 2 Output 160 VA RS stock no. 671-9025 Subtotal (1 unit) R 1 505,93(exc. VAT) R 1 505,93/unit Quantity	230 V ac	Toroidal Transformer	2 x 25 V ac	-	2	46mm	160VA	1.7kg	109mm	-	-	-	-	-	-	-	Copper Conductor	No
In Stock RS PRO 230 V ac 2 x 12 V ac Toroidal Transformer 2 Output 30 VA, UL 506, EN 61558 Class II, VDE0570 Class II, RoHS, IEC RS stock no. 671-8934 Subtotal (1 unit) R 518,70(exc. VAT) R 518,70/unit Quantity	230 V ac	Toroidal Transformer	2 x 12 V ac	-	2	32mm	30VA	503g	70mm	-	-	-	-	-	-	-	Copper Conductor	UL 506, EN 61558 Class II, VDE0570 Class II, RoHS, IEC 61558 Class II
In Stock RS PRO 230 V ac 2 x 30 V ac Toroidal Transformer 2 Output 160 VA, EN 61558 Class II, UL 506, VDE0570 Class II, IEC 61558 RS stock no. 671-9028 Subtotal (1 unit) R 1 396,22(exc. VAT) R 1 396,22/unit Quantity	230 V ac	Toroidal Transformer	2 x 30 V ac	-	2	46mm	160VA	1.74kg	109mm	-	-	-	-	-	-	-	Copper Conductor	EN 61558 Class II, UL 506, VDE0570 Class II, IEC 61558 Class II, RoHS
In Stock RS PRO 230 V ac 2 x 25 V ac Toroidal Transformer 2 Output 500 VA, UL506, EN60065 Class II, EN615581 Class II, UL51 RS stock no. 123-4031 Subtotal (1 unit) R 3 613,19(exc. VAT) R 3 613,19/unit Quantity	230 V ac	Toroidal Transformer	2 x 25 V ac	-	2	65mm	500VA	300g	148mm	-	-	-	Single Primary, Dual Secondary	180°C	Surface	-	Wire	UL506, EN60065 Class II, EN615581 Class II, UL51
In Stock RS PRO 230 V ac 2 x 18 V Toroidal Transformer 2 Output 15 VA, VDE0570 Class II, IEC61558 Class II, EN61558 Class II, RS stock no. 671-8928 Subtotal (1 unit) R 486,87(exc. VAT) R 486,87/unit Quantity	230 V ac	Toroidal Transformer	2 x 18 V	-	2	31mm	15VA	365g	60mm	-	-	-	-	180°C	-	-	Lead	VDE0570 Class II, IEC61558 Class II, EN61558 Class II, UL506
In Stock RS PRO 230 V ac 2 x 55 V ac Toroidal Transformer 2 Output 120 VA RS stock no. 671-9000 Subtotal (1 unit) R 1 097,32(exc. VAT) R 1 097,32/unit Quantity	230 V ac	Toroidal Transformer	2 x 55 V ac	-	2	48mm	120VA	1.4kg	96mm	-	-	-	-	-	-	-	Copper Conductor	No
In Stock RS PRO 230 V ac 2 x 40 V ac Toroidal Transformer 2 Output 500 VA, EN615581 Class II, EN60065 Class II, UL506, UL51 RS stock no. 123-3995 Subtotal (1 unit) R 3 647,51(exc. VAT) R 3 647,51/unit Quantity	230 V ac	Toroidal Transformer	2 x 40 V ac	-	2	60mm	500VA	3.5kg	136mm	-	105°C	-	Dual Secondary	180°C	Surface	RS PRO	Wire	EN615581 Class II, EN60065 Class II, UL506, UL51
Last RS stock RS PRO 2 x 115 V ac 2 x 30 V ac Toroidal Transformer 2 Output 1 kVA, ASNZS 61558..6, UL506, CE, ASNZS 61558.1, RoHS, RS stock no. 117-6064 Subtotal (1 unit) R 2 876,77(exc. VAT) R 2 876,77/unit Quantity	2 x 115 V ac	Toroidal Transformer	2 x 30 V ac	-	2	85mm	1kVA	8.4kg	172mm	-	-	-	Dual Secondary, Dual Primary	105°C	Bolt Mount	-	Termination Wire	ASNZS 61558..6, UL506, CE, ASNZS 61558.1, RoHS, IECBSEN 615581, IECBSEN 615586
In Stock RS PRO 2 x 115 V ac 2 x 24 V ac Toroidal Transformer 2 Output 500 VA, RoHS, IEC/BS/EN 61558-1, IEC/BS/EN 61558-2-6, RS stock no. 117-6071 Subtotal (1 unit) R 4 408,65(exc. VAT) R 4 408,65/unit Quantity	2 x 115 V ac	Toroidal Transformer	2 x 24 V ac	-	2	85mm	500VA	8.4kg	172mm	-	-	-	Dual Primary, Dual Secondary	105°C	Bolt Mount	-	Termination Wire	RoHS, IEC/BS/EN 61558-1, IEC/BS/EN 61558-2-6, AS/NZS 61558.2.6, AS/NZS 61558.1, CE, UL506 approved and marked
In Stock RS PRO 2 x 115 V ac 2 x 12 V ac Toroidal Transformer 2 Output 100 VA, IEC 61558-2-6 RS stock no. 117-6051 Subtotal (1 unit) R 1 658,59(exc. VAT) R 1 658,59/unit Quantity	2 x 115 V ac	Toroidal Transformer	2 x 12 V ac	-	2	42mm	100VA	1.1kg	90mm	-	-	Open	Dual Primary	105°C	Surface	-	Termination Wire	IEC 61558-2-6
Temporarily out of stock RS PRO 230 V ac 2 x 55 V ac Toroidal Transformer 2 Output 160 VA, IEC 61558 Class II, UL 506, EN 61558 Class II, RoHS, RS stock no. 671-9022 Subtotal (1 unit) R 1 447,33(exc. VAT) R 1 447,33/unit Quantity	230 V ac	Toroidal Transformer	2 x 55 V ac	-	2	46mm	160VA	1.74kg	109mm	-	-	-	-	-	-	-	Copper Conductor	IEC 61558 Class II, UL 506, EN 61558 Class II, RoHS, VDE0570 Class II
Temporarily out of stock RS PRO 230 V ac 2 x 25 V ac Toroidal Transformer 2 Output 225 VA RS stock no. 671-9173 Subtotal (1 unit) R 1 473,30(exc. VAT) R 1 473,30/unit Quantity	230 V ac	Toroidal Transformer	2 x 25 V ac	-	2	50mm	225VA	2.3kg	120mm	-	-	-	-	-	-	-	Copper Conductor	No
In Stock RS PRO 2 x 115 V ac 2 x 50 V ac Toroidal Transformer 2 Output 300 VA, CE, RoHS RS stock no. 117-6066 Subtotal (1 unit) R 2 952,63(exc. VAT) R 2 952,63/unit Quantity	2 x 115 V ac	Toroidal Transformer	2 x 50 V ac	-	2	60mm	300VA	2.7kg	117mm	-	-	Open	Dual Primary	105°C	Surface	-	Termination Wire	CE, RoHS
In Stock RS PRO 230 V ac 2 x 35 V ac Toroidal Transformer 2 Output, UL506, UL51, EN60065 Class II, EN615581 Class II RS stock no. 123-3990 Subtotal (1 unit) R 2 510,91(exc. VAT) R 2 510,91/unit Quantity	230 V ac	Toroidal Transformer	2 x 35 V ac	-	2	58mm	-	2.3kg	115mm	-	105°C	-	Single Primary, Dual Secondary	180°C	Surface	-	Leadout	UL506, UL51, EN60065 Class II, EN615581 Class II