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Official distributor and wholesaler of relays from brands such as Crouzet, Crydom and Finder
UK Next Day Delivery
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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

July 15, 2025

Finder 68 Series PCB Relays

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Finder High Power Relays 32 - 40 - 100 Amp

Finder 68 series

The 68 Series includes a range of mount high power relays, ideal for EV chargers up to 55 kW (3-phase) and other high power applications.

Function & Features:

  • Contact gap ≥ 3.6 mm (according to VDE 0126-1-1,
    EN 62109-1, EN 62109-2)
  • DC coils, with 700 mW holding power
  • Reinforced insulation between coil and contacts
  • Suitable for use at ambient temperatures
    up to 85 °C
  • Conforms to EN 60335-1 resistance to heat and
    fire (GWIT 775 °C e GWFI 850 °C).
  • Cadmium-free contacts

Applications:

  • Power Generators
  • Back-Up Generators
  • Pump Controls
  • Disabled lifts
  • Inverters
  • Charging Stations

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

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

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July 11, 2025

Crouzet AC Synchronous and DC Stepper Motors for All Needs

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Crouzet sync & stepper motors

AC Synchronous Motors

AC Synchronous Motors are the best solution for applications that require constant movement and a low torque, like in in medical equipment, valves, pumps and water treatment. Their rotation speed is directly proportional to the supply frequency, that means it’s always constant and independent from the load.

DC Stepper Motors

DC Stepper Motors are a great choice for simple applications that require long durability and easy integration, like small HVAC systems, photocopy machines, plot-ters, medical pumps and drip feeders, or vending and gaming machines.

Gearboxes

To meet the perfect speed and torque levels for the great majority of applications, we offer a complete range of gearboxes, with a wide variety of ratios, for adjusting our motors.

Each gearbox has been designed for a specific workload and optimized for a long mechanical life, with a big capacity to absorb the maximum torque in continus movement.

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

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

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