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We have in stock, or can make available power supplies from well-known brand names such as Meanwell and Ideal Power
UK Next Day Delivery
Expert Advice
No Min Order Charges
Technical Support
Flexible Payment Terms
Over 40 Years Experience
E. Preston Electrical

Power Supplies

What are Power Supplies?

A power supply is a device that supplies electrical energy to an electrical load. It converts one form of electrical energy to another, such as converting AC (alternating current) to DC (direct current). Power supplies are used in a variety of electronic devices, from computers and cell phones to TVs and gaming consoles.

What Do We Supply?

We supply an extensive range of power supplies, including:
External Power Supplies
Battery Chargers
DC/DC Converters
LED Drivers
Internal Power Supplies (DIN rail, Enclosed, PCB Mount, Open Frame, U Frame)

Why Choose E. Preston?

In over forty years of being in business, we have built a reputation as a company that does business in a more traditional, perhaps old-fashioned way. In our customer service we pay attention to what some may see as small things, like ringing back when we say we are going to do so, and following through on promises.

We have staff who have expert knowledge and are happy to provide technical assistance to you on the products we sell, whenever you need it.

Where we can, we will ensure you get next day delivery on your product order, and we are also happy to discuss flexible payment terms if that will help.

One or great strengths at E Preston is our access to thousands of products, including power supply products, which will be suitable for a variety of uses and applications.

We have in stock, or can make available power supplies from well-known brand names such as Meanwell and Ideal Power.
If it is choice you need, then look no further than us
to discuss your power supply product requirements, or to ask a technical question.

Featured Products

Manufacturers

News

December 5, 2025

Finder 7S Series Modular Relays with Forcibly Guided Contacts 6-10A

7S Series Modular Relays with Forcibly Guided Contacts 6-10A

Finder 7S

The 7S Series consists of relays with forcibly guided contacts for SIL 2/SIL 3 safety applications, include the following features (according to Type)

Functions & Features:

  • For safety applications, with class A forcibly guided
    contact relays (EN 50205)
  • 2 pole (1NO + 1 NC), 4 pole (2 NO + 2 NC and 3 NO + 1 NC)
    or 6 pole (4 NO + 2 NC)
  • 35 mm rail (EN 60715) mount, 22.5 mm wide
  • Available version for railway applications

Applications:

  • Hoists and Cranes
  • Carousel Warehouses
  • Escalators
  • Elevators and Lifts
  • Automatic Car-Washes
  • Chemical and Petrochemicals
  • Process Industry

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

MORE
December 4, 2025

Crouzet Industrial Monitoring Relays

Image

Choose Crouzet for superior performance and compliance with industry standards.

Crouzet Monitor1

Ensure the safety, efficiency, and reliability of your industrial and commercial installations with Crouzet Monitoring Relays. Protect AC motors, HVAC systems, pumps, conveyors, and more by continuously monitoring phase, voltage, current, and level. Prevent costly downtime and equipment damage with our versatile three-phase and single-phase options.

Feature & Benefits:

Crouzet Monitor3
Crouzet Monitor2

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

MORE
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UK distributor of electrical and electronic components.

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