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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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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 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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August 6, 2025

Schurter DG11 Magnetic Release Power Entry Module

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Schurter dg11

DG11 – With Additional Magnetic Release

  • Thermo-magnetic circuit breaker for increased
    short-circuit protection
  • V-Lock cord retention
  • Water- and dustproof (IP67)

The Schurter DG11 power entry module, which has been optimized and proven over many years, is now available in a version with an additional magnetic release to protect against very high overcurrent (short circuit).

Circuit breakers are usually designed according to the thermal principle with a bimetal. If a defined temperature is exceeded due to the overcurrent, the circuit is interrupted. Once the bimetal has cooled down, the device is ready for use again. However, this process is very slow. For this reason, thermal circuit breakers are usually combined with a fuse.

New with Additional Magnetic Module
Schurter is upgrading its TA35 2-pole miniature circuit-breakers with an additional, optional magnetic module. From now on, no additional fuse is required for the thermal-magnetic versions. Depending on the application, the magnetic modules are available with both slow and fast characteristics.

V-Lock Cord Retention
The new versions of the DG11 connectors are equipped with the proven V-Lock cord retention protection as standard.

Splash- and Dustproof: IP67
The DG11 power entry module is fitted with special sealing elements (gaskets) to achieve the very high degree of protection IP67.

Application Areas
Wherever dirt, dust particles or water occurs, and the highest safety standards are required, these new Schurter power entry modules are the perfect choice. Typical areas of application are harsh industrial environments or demanding medical applications where cleaning and disinfection as well as maximum protection against overcurrent (short circuit) are required.

Applications

Schurter dg11 apps

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

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

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