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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

February 11, 2026

Eaton Moeller Series - SPDT3 xPole Surge Protection

Image
Moeller SPTD3 Pic

The SPDT3 device is especially used for fine
protection of user equipment against transient
overvoltage and local protection of sensitive
loads in end circuits.

These SPDs type 3 have a low discharge capacity,
so in order to have a full protection type 3
should be supplementing type 2 SPDs and be
installed in the vicinity of sensitive loads.

Moeller SPTD3 Spec

Core Features

Moeller SPTD3 Features

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

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

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February 9, 2026

Finder Type 78.Y1 - Industrial Single Phase Switch Mode Power Supply

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Finder 78.Y1

Industrial single phase Switch Mode power supply 24 V DC, 480 W output, Output adjustable between 24-28 V, Double stage with active PFC (Power Factor Correction).

Function & Features:

  • High efficiency (up to 92%)
  • Low stand-by power consumption
  • Active PFC
  • DC output voltage adjustable
  • Short circuit protection with hiccup auto-recovery
  • Thermal protection with auto shoutdown
  • High peak current up to 30%
  • Boost current up to 30% for 3 s (depending on version)
  • Overvoltage protection: Varistor
  • Compliant with IEC/EN 62368-1, UL 61010
  • Parallel working for increased load current (with
    external diode) or redundancy
  • 35 mm rail (EN 60715) mount

Applications:

  • Building Automation
  • Elevators and Lifts
  • Automation for Blinds and Shutters
  • Hoists and Cranes
  • Panels for Electrical Distribution
  • Control Panels for Pumps

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

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

MORE
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© E. Preston (Electrical) Ltd 2026.

UK distributor of electrical and electronic components.

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