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Official distributor and wholesaler of relays from brands such as Crouzet, Crydom and Finder
UK Next Day Delivery
Expert Advice
No Min Order Charges
Technical Support
Flexible Payment Terms
Over 40 Years Experience
E. Preston Electrical


What is a Relay?

Relays are electrically operated switches that open and close circuits receiving electrical signals from external sources. The relays built into electrical products work in a similar way; they receive an electrical signal and send the signal to other equipment by turning the switch on and off. The three main functions of relays are to allow a small amount of electrical current to control high current loads, send different types of electrical signals, and drive multiple outputs with just one input.

What Do We Supply?

We have a broad range of relays in stock, including:
Modular step relays
Monostable relays
Ultra-slim PCB relays
Relay interface modules
Miniature PCB/plug-in relays
Low profile PCB relays
Miniature industrial relays
Safety relays
Power relays
Miniature power relays
Solid State relays
Relay bases
Coil indication
EMC protection

Why Choose E. Preston?

We are an official distributor and wholesaler of relays from brands such as Crouzet, Crydom and Finder. These are well known companies in their fields with excellent reputations for the quality of their products.

What really sets us aside from our competition is our choice and range of relays – you really don’t need to look anywhere else for your requirements.

As we have been operating for over forty years, we have developed a fantastic relationship with our suppliers. This benefits us in two main ways: We gain access to the widest choice of components from those suppliers, and secondly, they sell us those components at competitive prices because we purchase such significant volumes. We are able to pass on those competitive prices to you, our customer.

We have a large stockholding of our products at our warehouse in Dukinfield, Cheshire in the UK. This stock means that our product availability is consistently high, and we can get your order for stock items out to you in a 24 to 48 hour time frame.
and we can talk through your specific relay requirements.

Featured Products



November 29, 2023

Johnson Electric – DC Motors


Johnson Electric, the world leader in micro motors, offers custom engineering solutions based on a wide range of low voltage DC and high voltage DC motor platforms.

The low voltage DC platform provides power density and compact packaging options.

The high voltage DC range provides power density and space saving advantages versus traditional AC motors in similar applications.

Enquiry Form:

Home Page:

November 16, 2023

Finder 32 Series PCB Relays

Subminiature PCB relays

The 32 Series comprises miniature 6 A relays for printed circuit board mounting with the following features (according to Type)

Functions & Features:

  • 1 Pole changeover contacts or 1 Pole normally open contact
  • Subminiature, low profile package
  • Sensitive DC coil: 200 mW – Wash tight: RT III


  • Copiers
  • Hi-Fi Systems
  • Washing Machiness
  • Control Systems
  • Electronic Kits
  • Medical and Dentistry
  • Electronic Circuit Boards
  • Programmable Controllers

Enquiry Form:

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