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.
The DMTH Series: A Robust and Cost-Effective DIP Switch
DMTH: The Industry Standard 2.54mm THT-DIP-Switch
The DMTH series is a robust and cost-effective DIP switch designed for reliable manual configuration in industrial and electronic applications. Featuring the industry-standard 2.54mm pitch and THT mounting technology, it offers excellent compatibility with established PCB designs while ensuring secure mechanical retention and soldering reliability.
With up to 12 positions, SPST contacts, recessed or raised actuator options, and a low-profile 3.6mm design, DMTH supports flexible system configuration without increasing board space requirements. The switch is rated for up to 2,000 operating cycles and operates reliably from -40°C to +85°C.
Typical applications include address setting, communication protocol selection (e.g. RS-485, Modbus), function control, BIOS and hardware configuration, medical equipment parameter settings, HVAC systems, industrial controllers, robotics and consumer appliances. Combining proven performance, competitive cost and fast availability, DMTH is an ideal solution for OEMs seeking a reliable alternative to premium-priced DIP switch brands.
Enquiry Form: https://www.epreston.co.uk/contact/
Home Page: https://www.epreston.co.uk/epblog/
Modern control cabinet solutions are no longer created from individual components, but from integrated systems that seamlessly combine planning, wiring, and labeling.
This is exactly where the selos system comes in: a modular, perfectly coordinated overall concept consisting of terminal blocks, digital planning tools, professional labeling, and services. Developed to make your processes easier, faster, and safer.
Safe Wiring
With our selos WTPN terminal blocks with push-in connection, you can wire quickly, safely and completely without tools. For maximum flexibility, the selos WTN series with screw connection is also available - ideal for a wide range of applications and proven technology.
Your Advantages:
The SELOS WTN Din Rail Terminal Blocks with Screw Connection provides a reliable connection, solid and functional, known worldwide, and in use millions of times over.
The selos series combines the classic screw connection with modern connection technology, with the focus on customer benefits and increased efficiency in wiring and the supply chain.
The SELOS WTPN Din Rail Terminal Block with
Push-In Connection terminates wires easily,
directly and without tools.
With an effective global concept, compact design
and high-performance contact technology, selos WTPN
minimizes the installation time and reduces inventory
costs to a minimum.
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.
