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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

August 15, 2025

Schurter Proven EMC Filters

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Reliable supply chains, expert support, and long-term product availability have never been more important. Schurter provides not only high-quality EMC Filters – but also the tools and service to back them up.

Schurter emc1
Schurter emc2
Schurter emc3

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

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

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August 8, 2025

Schurter DD11 / DD21 Rotated Switch

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Schurter dd11

DD11 and DD21 – New with Rotated Switch

  • Designed for medical applications
  • 2-pole fuseholder
  • DD11: 2-pole switch
  • DD21: 1- or 2-pole switch
  • V-Lock cord retention

The Schurter DD11 and DD21 power entry modules, which are already used in a variety of applications, are now available in a version with a rotated switch. This meets the specific requirements of medical applications where the switch (rocker) must be rotated by 180°: the switch-on position is at the top and the switch-off position is at the bottom.

With their ultra-compact design, the power entry modules DD11 and DD21 are the ideal choice for low-profile designs. They are all-in-one solutions comprising an IEC C14 connector, a fuse holder and a switch. All the individual components are pre-wired. This significantly reduces assembly time. The compact design and three-in-one functionality allow less space to be used in the equipment. The power entry modules DD11 and DD21 are ideal for applications involving high transient loads.

New with 180° Rotated Switch
Schurter newly offers two different variants with switch-on and -off position rotated by 180°, thus meeting the requirements of many medical electronic applications.

V-Lock Cord Retention
All DD11 and DD21 modules, including these new variants with rotated switch, are equipped with the proven V-Lock cord retention system as standard.

Application Areas
The new variants are suitable for applications according to IEC/UL 62368-1 (Audio/video, information and communication technology equipment), IEC 60601-1 (Medical electrical equipment) and IEC 60335-1 (Electrical appliances for household and similar purposes). They also meet the requirements for appliances in unattended use. This includes the enhanced requirements of glow wire tests acc. to IEC 60695-2-11 or -12 & -13.

Applications

Schurter dd11 2

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

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

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