Contact Us
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

Relays

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

Manufacturers

News

August 28, 2025

E-T-A Electronic Overcurrent Protection

Image

E-T-A Electronic Overcurrent Protection Devices are ideally suited to protect equipment components in industrial applications and supply lines which are fed by means of a DC24V switch-mode power supply.

Electronic overcurrent protection prevents dips of the output voltage of switched mode power supplies both in the event of short circuit and overload. At the same time these devices provide selective protection or disconnection. Switching high capacitive loads and indicating a functional error is possible without any problems. Fault indication is by means of LEDs and auxiliary contacts. This helps with trouble-shooting and increases machine run times.

Eta overcurrent1
Eta overcurrent2
Eta overcurrent3
Eta overcurrent4

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

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

MORE
August 27, 2025

Wieland gesis® CLASSIC GST Connector System

Image

The connector system for quick, easy, and safe installation. It meets all the requirements of modern energy distribution.

Wiellan gst connector

Industrially prefabricated and durable components impress with 70% time and 30% cost savings! The comprehensive gesis® CLASSIC product range enables easy, cost-effective, and future-proof electrical installation from distribution to consumption.

Project-specific distribution boxes for decentralized power supply and building automation, along with directly mountable modular KNX components, complement our installation system.

Image
Wiellan gst
Wiellan gst2

Compliant Installation
gesis® components are secured according to IEC EN 61535 to prevent unintended detachment. Certified quality and safety according to international standards, with color-coded and mechanical coding to avoid misconnections.

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

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

MORE
See all news
Privacy Policy
Website built and optimised by Miltec Digital

Get In Touch

Fill in your details to request a call from one of our sales representatives.
E Preston Contact Form
chevron-leftchevron-right linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram