Transformers

We have a great range of electrical transformers. You can choose from PCB mounting, toroidal, chassis and DIN rail mounting. Also find our site safety transformer range and 110v transformers. These are available from brands such as Block, EPCOS, Wurth Elektronik and our own RS PRO.

What is a transformer?

A transformer is an electrical device that supplies electricity from one circuit to another by changing the magnetic field. They're used in residential and industrial environments

What types of transformers are available?

We offer a range of transformer types:

  • Audio: for increasing and decreasing voltage in amplifiers and high-frequency audio and voice circuits
  • Autotransformer: also known as a step-down transformer, they are small, cheap and light due to only having one coil as opposed to those with a secondary winding coil
  • Chassis Mounting: come in different sizes with holes for mounting to a chassis
  • Current Transformers: measures the current of another circuit
  • DIN Rail & Panel Mount: having the capacity to be mounted to a flat surface, panel or DIN rail via mounting holes
  • LAN Ethernet: isolation and signal conditioning for transmission and correct reception of voltage over Ethernet
  • Lighting: transformers that are specifically designed to work with lighting, most commonly dimmer switches
  • PCB: printed circuit board transformers control the voltage or current moving through the board
  • Safety Site: providing protection in transformers through isolating mains power supply minimise shocks and overloading
  • Switch Mode Power Supply (SMPS): used primarily in PCs for switching from AC or DC to DC power
  • Telecom: voltage isolation before transmission for use in homes
  • Toroidal: transformers in the shape of a ring or doughnut
  • Wall Mount Transformers: for use in hazardous locations or harsh industrial environments

We also have a range of chip and transformer-line baluns, coil formers, mounting kits, terminal covers, ferrite cores as well as variac brushes, connectors dials and knobs.

How long do electrical transformers last?

They don't have any moving parts but are under constant stress from vibrating and temperature, expanding and contracting 60 times per second. Regardless of this, they can often last decades.

Audio Transformers
Audio Transformers
Autotransformers
Autotransformers
Chassis Mounting Transformers
Chassis Mounting Transformers
DIN Rail Transformers
DIN Rail Transformers
LAN Ethernet Transformers
LAN Ethernet Transformers
PCB Transformers
PCB Transformers
Power Conditioners
Power Conditioners
Pulse Transformers
Pulse Transformers
SMPS Transformers
SMPS Transformers
Site Transformers
Site Transformers
Toroidal Transformers
Toroidal Transformers
Transformer Accessories
Transformer Accessories
Transformer Cores
Transformer Cores
Variacs
Variacs

3421 Products showing for Transformers

1 of 172
In Stock
Block 2 Output 250 VA Chassis Mount Transformer, 2 x 115 V ac, IEC 61558-2-2, UL 5085-1/-2, CSA 22.2 No.66, DIN EN
  • RS Stock No. 361-8092
  • Mfr. Part No. STEU250/23
Subtotal (1 unit)
Kr.1 365 56 (exc. VAT)
Temporarily out of stock
Siemens 63VA DIN Rail Transformer, CE, 400V Primary, 230V Secondary
  • RS Stock No. 218-867
  • Mfr. Part No. 4AM3242-5AT10-0FA0
Subtotal (1 unit)
Kr.985 25 (exc. VAT)
In Stock
Myrra 24 V 5 Output PCB PCB Transformer, VDC, ENEC, UL, RoHS, CE 10 W
  • RS Stock No. 183-8328
  • Mfr. Part No. 47215
Subtotal (1 unit)
Kr.256 83 (exc. VAT)
In Stock
Myrra 5 V 5 Output PCB PCB Transformer, VDC, CE, ENEC, UL, RoHS 10 W
  • RS Stock No. 183-8322
  • Mfr. Part No. 47210
Subtotal (1 unit)
Kr.254 20 (exc. VAT)
In Stock
RS PRO 230 V ac 2 x 18 V ac Toroidal Transformer 2 Output 160 VA, UL 506, EN 61558 Class II, VDE0570 Class II, RoHS, IEC
  • RS Stock No. 671-9016
Subtotal (1 unit)
Kr.616 85 (exc. VAT)
In Stock
Block Open Frame 3.5 kVA Auto-Transformer, 3 x 440 V ac, 460 V ac Primary, 400 V ac Secondary
  • RS Stock No. 738-7837
  • Mfr. Part No. AT3 3,5-44/46-4
Subtotal (1 unit)
Kr.2 990 87 (exc. VAT)
In Stock
RS PRO 230 V ac 2 x 15 V ac Toroidal Transformer 2 Output 50 VA
  • RS Stock No. 671-9094
Subtotal (1 unit)
Kr.330 17 (exc. VAT)
In Stock
Block 5 Output 800 VA Chassis Mount Transformer, 230 V ac, CSA, IEC 61558-2-2, cULus, VDE, UL, DIN EN 61558-2-2, ENEC 10
  • RS Stock No. 731-5205
  • Mfr. Part No. ST 800/69/23
Subtotal (1 unit)
Kr.3 366 33 (exc. VAT)
In Stock
Legrand 40VA DIN Rail Transformer, 215V ac, 230V ac, 245V ac, 385V ac, 400V ac, 415V ac Primary, 24V ac Secondary
  • RS Stock No. 535-7711
  • Mfr. Part No. 0 442 31
Subtotal (1 unit)
Kr.728 50 (exc. VAT)
In Stock
RS PRO, Mounting Disc for use with Toroidal Transformer
  • RS Stock No. 671-9205
Subtotal (1 pack of 10 units)
Kr.72 42 (exc. VAT)
In Stock
Legrand 100VA DIN Rail Transformer, 230 → 400V Primary, 24 → 48V Secondary
  • RS Stock No. 383-314
  • Mfr. Part No. 0 428 72
Subtotal (1 unit)
Kr.729 89 (exc. VAT)
Temporarily out of stock
Block 12 V ac 1 Output Pin PCB Transformer, ENEC 10 (VDE), C-UL-US 1.5 VA
  • RS Stock No. 732-0348
  • Mfr. Part No. VB 1,5/1/12
Subtotal (1 unit)
Kr.115 24 (exc. VAT)
Temporarily out of stock
Comatec 18VA DIN Rail Transformer, 230V ac Primary, 24V ac Secondary
  • RS Stock No. 240-9670
  • Mfr. Part No. TBD2 018 24 P3
Subtotal (1 unit)
Kr.230 24 (exc. VAT)
In Stock
Block 12 V ac 1 Output Pin PCB Transformer, VDE 0570 Part 2-6, ENEC 10 (VDE), DIN EN 61558-2-6, IEC 61558-2-6, C-UL-US,
  • RS Stock No. 732-0392
  • Mfr. Part No. VB 3,2/1/12
Subtotal (1 unit)
Kr.144 93 (exc. VAT)
In Stock
RS PRO 400VA DIN Rail Transformer, 400V ac Primary, 24V ac Secondary
  • RS Stock No. 880-2576
Subtotal (1 unit)
Kr.2 157 86 (exc. VAT)
Limited stock
Myrra 5 Output SMPS Transformer 5 W Output, 265 V, 85 to 370 V ac, 3.3 V
  • RS Stock No. 792-4366
  • Mfr. Part No. 47151
Subtotal (1 unit)
Kr.267 24 (exc. VAT)
Currently unavailable
Block 130VA DIN Rail Transformer, 380V ac, 400V ac, 420V ac Primary, 230V ac Secondary
  • RS Stock No. 158-7441
  • Mfr. Part No. STS130/4/23
Subtotal (1 unit)
Kr.742 11 (exc. VAT)
Temporarily out of stock
Siemens 1 Safety Transformer 0.06 kVA, 600 V Primary, 24 V Secondary, 2.63 A O/P
  • RS Stock No. 668-262
  • Mfr. Part No. 4AM3242-8EN00-0EA0
Subtotal (1 unit)
Kr.1 494 98 (exc. VAT)
In Stock
Legrand 63VA DIN Rail Transformer, 230V ac, 400V ac Primary, 24V ac Secondary
  • RS Stock No. 535-7727
  • Mfr. Part No. 0 442 32
Subtotal (1 unit)
Kr.734 98 (exc. VAT)
In Stock
Comatec 35VA DIN Rail Transformer, 230V ac Primary, 24V ac Secondary
  • RS Stock No. 240-9672
  • Mfr. Part No. TBD2 035 24 F4
Subtotal (1 unit)
Kr.369 40 (exc. VAT)
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