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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

October 16, 2025

Eaton Moeller Series - SPBT12 xPole Surge Protection

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Spbt12 pic1

The SPBT12 device provides protection against transient overvoltage caused by direct lighting strokes for lighting protection levels III and IV acc. to IEC 62305.

Usually when an external lightning protection system is installed, an internal lightning protection system is also required for which the type 1/2 combination offers the best solution.

Spbt12 pic2

Core Features

Spbt12 pic3

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

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

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October 14, 2025

E-T-A Power Entry Modules

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Power Entry Modules with Integrated Circuit Breakers

Systematically reducing components is a major success factor for a cost-saving design. And what is more: Fewer components increase the overall reliability and usually lead to space-savings.

E-T-A’s power entry modules combine up to five functions in a single component: a C14/C20 appliance inlet, resettable overcurrent protection, an ON/OFF switch, a line filter and an optional undervoltage release, remote trip or auxiliary switch.

Compared to standard connector modules with fuses the E-T-A power entry modules are equipped with resettable circuit breakers. After an overcurrent trip they can be reset quickly, reliably and easily. Time-consuming fuse replacement is eliminated. Thanks to screw mounting, E-T-A power entry modules have a firm and robust fit in the housing and can thus withstand even high pull-out forces of power cables without any problems.

Benefits:

  • Reduced assembly and wiring effort (up to 90 %!)
  • Reduced material planning and stock keeping costs
  • Increased equipment uptime: Quickly and easily reset circuit breakers
  • Time-consuming fuse replacement is omitted
  • Low operational costs: No expenses for procurement, inventory management and service for fuses
  • High safety: multipole circuit breakers reliably interrupt the current-carrying phase conductor in the event of a fault. This prevents electric shocks.
Eta modules

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

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

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