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E. Preston (Electrical) Ltd, approved and trusted supplier of electrical components and an official distributor for top brands
UK Next Day Delivery
Expert Advice
No Min Order Charges
Technical Support
Flexible Payment Terms
Over 40 Years Experience


Why choose E. Preston Electrical?

Official Distributor For Top Brands

We introduce our company as a specialist distributor of electrical and electronic components. 

We are an official authorised distributor of ABB, Adaptaflex, Arcolectric, BDC Electronics, Bulgin, Bussmann, Cherry, Chint, CML, Crouzet, Crydom, Cynergy3, Eaton, Entrelec, Essen, 
E-T-A, Finder, Honeywell, Hylec, IDEM, Johnson Electric/Saia-Burgess, Kraus & Naimer, Moeller, Sensata, Schaffner, Schurter, Scolmore, Tranilamp, Werma, Wieland and ZF. We are fully franchised for their complete ranges of switches, contactors, neons, timers and relays; buying directly from the manufacturer and selling at all of the manufacturers’ price breaks.

We also supply components from many other well known brands and our expert team can help you to find hard to source items and available stock.  More details are available on our company line card. 

Download our latest line card here

Manufacturers

Customer Service

There are no minimum order charges unless imposed upon ourselves by the manufacturer. We are very easy to deal with and will quickly open a credit account for regular business. We have the facility to accept payments by credit or debit card. Our telephone lines lead directly into the sales office, thus avoiding possible frustrating delays whilst you wait to be put through to someone. We maintain good stock, have the expertise to advise on applications or equivalents, keep promises (including phoning back) and dispatch the same day we receive your order via 24 hour courier service. Out of stock items are dispatched the same day we receive them. We can also supply Certificates of Conformance as required.

Approved & Trusted

We are registered as an ISO 9001:2015  approved stockist and supplier, registration number RS 10581. We are also an MOD approved supplier, registration number 3EVP01.

All of the national wholesaler groups buy from us, and we ask that you look through the information about our company to see if you would benefit from using us. We are happy to quote against equivalent RS and Farnell references and we will do our utmost to prove our claims.

Download a copy of our BSI certificate here

For technical support, purchasing or advice please
We will be more than happy to help

Featured Products

News

January 6, 2026

E-T-A Solid State Relays

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The solid state relay portfolio is used in all applications where mechanical relays reach their limits. They switch more frequently, quieter and faster than mechanical relays and are particularly suitable for applications in buses and trucks, in agricultural vehicles and construction machinery, in specialty vehicles and passenger cars.

E-T-A solid state relays are available for DC 12 V and DC 24 V applications and are suitable for standard automotive relay sockets to ISO 7588.

Solid state relays combine high-end power semi-conductors with comprehensive know-how in the areas of heat management, EMC-compliant design and overcurrent protection. The electronic circuitry ensures wear-free, silent and extremely fast switching operations over the entire life span.

ETA Solid Stae pic

The electronic standard relays type ESR10 Micro are solid state relays for DC 12 V and DC 24 V vehicle applications. This space-saving relay is available in three power classes:

  • 10 A for max. 85° C / (12 and 24) Vdc
  • 17 A for max. 105° C / (12 and 24) Vdc
  • 30 A for max. 85° C / 12 Vdc

Their Benefits Include:

  • Silent Switching
  • Bidirectional Control
  • Low Current Consumption
  • Long Life Span

The ESR10 Micro relays can easily replace an electro-mechanical relay because polarity of the control input does not matter. The solid state relays are suitable for switching resistive, inductive and capacitive or lamp loads. Unlike electro-mechanical relays they offer frequency control as an option.

ETA Solid Stae Tech
ETA Solid Stae App

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

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

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December 18, 2025

Wieland gesis® NV Signal Connector

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The connector system for quick, easy, and safe bus cabling and signal applications. It meets all the requirements of modern building installation.

Wieland NV Pic

Low-Voltage Technology
These connectors are used to distribute signals in buildings, in parallel to the distribution of power. Mechanical coding and clear assignment with different colors facilitate assembly. Complex installations can be realized with just four basic components – from the sub-distribution unit to any point of use. The connectors come as male and female connectors complete with strain relief and can be used to connect any current type of cable.

The BST14 are designed according to the KNX manual.

The 5G2.5/4+2X1.5 flat cable with shielded bus, as per the KNX manual, is available for the combined distribution of energy and signals.

Best Choice Value Program
This product is part of our exclusive Best Choice program and has been carefully selected to provide you with maximum efficiency, reliability, and flexibility.

  • Proven quality: Meets the highest standards and is ideal for plug-in electrical installations.
  • Quick availability: As a Best Choice product, it benefits from prioritized stock and is always ready for short-term delivery.
  • Perfect for your application: Ideal for common applications and seamlessly compatible with our system solutions.
Wieland NV Pic1

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

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

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