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Official distributor and wholesaler of relays from brands such as Crouzet, Crydom and Finder
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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

December 12, 2025

Honeywell RTY Dual-Output Hall-Effect Rotary Position Sensor

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RTY Dual Output Sensors - Designed to provide non-contact sensing in harsh transportation and industrial applications

Honeywell RTY

The Honeywell RTY Dual Output Hall-effect Rotary Position Sensors are designed to provide non-contact sensing in harsh transportation and industrial applications with safety redundancy.

The rise of smarter controls in transportation and industrial equipment has been enabled by accurate, reliable, and rugged sensing technology. Hall-effect style sensors provide a portable, non-contact solution that can handle tough operating conditions in these environments.

The RTY Dual Output Series joins the extensive Honeywell portfolio of rugged and reliable Hall-effect Rotary Position Sensors. The addition of the RTY Dual Output Series brings the durability and reliability of our Rotary Position Sensors into customer applications requiring safety redundancy.

About RTY Dual Output Sensors:
The RTY Series Hall-effect Rotary Position Sensors provide non-contact sensing in harsh transportation and industrial applications at a competitive cost.

These shaft activated products are available in two versions: an integral shaft with or without a lever. The lever may allow customers to reduce the number of mechanical linkages required for their applications, which may reduce the cost of the overall customer solution.

These products use a magnetically biased, Hall-effect integrated circuit (IC) to sense rotary movement of the actuator over a set operating range. Rotation of the actuator changes the magnet’s position relative to the IC. The resulting flux density change is converted to a linear output.

Key Features:

  • True non-c ontact operation:Ensures long-lasting performance with a product life of 35 million cycles•Solid-s tate Hall-e ffect technology:Provides accurate and reliable sensing
  • Dual signal capability:Delivers two voltage output signals for enhanced functionality
  • Rugged design: IP67 and IP69K-sealed package with integral connector for durability in harshenvironments30 September 2025
  • Automotive-g rade testing:Includes EMI/EMC testing, integrated reverse polarity, and short circuit protection

Applications:

  • Transportation: Ideal for position and movement detection in trucks, buses, off-road vehicles, cranes, and more
  • Industrial: Suitable for valve control, HVAC damper control, and irrigation equipment pivot control
  • Marine:Perfect for tilt/trim position and rudder position monitoring
  • Military:Effective for chassis suspension systems position height

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

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

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December 9, 2025

Sensata / Crydom DRA1 Series (DIN Rail Mount DC Output) Solid State Relays

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10mm wide SSR assemblies. Ratings from 3 to 10 Amps at 1-200 VDC. Bipolar transistor or MOSFET output.

Crydom DRA1

The DRA1 Series combine DC output PCB mounted
Single-in-Line Solid State Relays with 10mm wide
DIN rail mounted sockets to create ready-to-use
assemblies, which are ideal for low to medium
power control for heating, lighting or motion
control applications.

Features:

  • Ratings from 3A to 10A and 1 VDC to 200 VDC
  • Single Channel Output
  • Transistor or FET output
  • LED input status indicator
  • DC control

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

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

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