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Over 40 Years Experience
Welcome to E. Preston Electrical

Specialist Electrical Distributors

Distributors and suppliers of electrical components, rocker, toggle, proximity & limit switches,
microswitches, safety switches, indicators, control gear, circuit breakers, timers, fuseholders, filters, relays, sensors, inlets & connectors. We can supply the parts you need anywhere in the world.
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Featured Products

Over 40 years of Excellence

E Preston has been a specialist distributor of electrical and electronic components since 1980, offering thousands of products to meet a wide variety of needs and applications.

But we do more than simply sell components – we have built a reputation as a company who does business the traditional and honest way. Paying attention to the simple things – like phoning people back when we say we will – has kept our customers coming back for over four decades.

Our staff are experts in their fields, we maintain appropriate stock levels, and all of our processes are fully computerised to ensure a smooth operation.

We also understand that business is carried out between people, not companies. We do the hard work to maintain relationships with our suppliers as well as our customers. That way everybody in every part of the supply chain is satisfied – from the manufacturer to the end customer.

Manufacturers

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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