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.

Flexible solutions for all your commercial vehicle switching needs
The vehicle controls portfolio at Eaton offers a broad range of solutions not only for on- and off-road vehicles, but also for commercial machine applications that require rugged, dependable switches. These products are at the heart of many systems, including heavy-duty trucks, construction and agriculture.

Keypad electronic switch modules - E31
Offering an increased degree of sealing to IP68 from the front and rear of the module, the keypad electronic multiplex switch module (eSM E31) meets severe environment applications with exceptional operator feedback; tactile, audible and visual with up to four independent indicator LEDs.

Electronic switch modules - E32
Offering a high level of flexibility, the above-panel electronic multiplex switch module (eSM E32) covers your wide range of switch and indicator applications using standard or custom graphics, as well as a full range of circuits and illumination options. The above-panel eSM E32 has top, center and bottom LED lighting with software that offers advanced circuit and lighting flexibility, including dimming and flashing options via J1939 CANbus communication.

Electronic Switch Modules - E33
Designed to support harsh environmental applications, the E33 eSM offers sealing to IP68 and offers additional features including guarded and locking rockers. The E33 eSM also provides flexibility of up to eight switch modules (24 switches total) per CAN node and exceptional visual feedback via Eaton's extensive library of icons and multi-color indicator bar.
Enquiry Form: https://www.epreston.co.uk/contact/
Home Page: https://www.epreston.co.uk/epblog/

Compact mains and power entry filters are ideal solutions for a wide range of applications that require EMI/RFI protection such as industrial, telecommunication, commercial electronics and medical equipment.


Enquiry Form: https://www.epreston.co.uk/contact/
Home Page: https://www.epreston.co.uk/epblog/
© E. Preston (Electrical) Ltd 2026.
UK distributor of electrical and electronic components.