E. Preston (Electrical) Ltd 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 do 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 consumer.
The company, which is still wholly owned by the Directors, is located on a modern industrial estate which lies six miles to the east of Manchester in the North West of England.
Our Offering
E. Preston (Electrical) Ltd is a UK distributor of electrical and electronic components, including switch products, indicator lights, microswitches, control gear, connectors & terminals, circuit protection, liquid level & flow sensors, safety switches, timers & relays and input devices.
Our network of suppliers and manufacturers includes known and trusted brands such as ABB, Bulgin, Chint, Crouzet, Eaton, E-T-A, Finder, Honeywell, Johnson Electric, Schurter and Schaffner. As authorised distributors for these and other companies, E Preston is able to source the right components at competitive prices.
Our expert staff, UK warehouse and central location allow us to fulfil orders quickly and accurately. We also strive to keep our team up-to-date on the latest product launches and industry developments.
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The SPPVR family of surge protection devices (SPDs) is our answer to the growing need for safe and reliable photovoltaic (PV) installations in residential and commercial buildings.
Powerful protection is the first step to ensuring a long lifetime for your equipment and inverters: these SPDs ensure that your system will not be damaged by any overvoltage event on the direct current (DC) side of your PV application.
The SPPVR products can be deployed in residential settings, for example in small combiner boxes or commercial applications such as array protection boxes in PV fields. SPPVR offers a future-proof portfolio for all possible use cases.
E-T-A Power relays are reliable problem solvers when it comes to switching high currents. Particularly construction machinery, agricultural vehicles as well as buses and trucks, floor-borne vehicles and other special vehicles (e.g. fire brigades) often have connected large electrical loads. In these applications, power relays disconnect the entire on-board electrical system from the battery.
Depending on the application, E-T-A offers purely electro-mechanical relays, solid state relays and also a hybrid design consisting of an electro-mechanical switching system with an intelligent electronic control unit.
Key Product Lines & Features
EPR10 Solid-State Relays: Designed for high continuous currents (up to 200A at 24VDC), requiring 80% less space than traditional alternatives and eliminating the need for separate heat sinks
HPR10 Hybrid Relays: Combine robust mechanical, bistable switching with intelligent electronic controls, enabling features like on/off delays and voltage monitoring
MPR10/MPR20 Mechanical Relays: Bistable (MPR10) or monostable (MPR20) relays designed for high current switching with low power consumption
Key Advantages
Efficiency: Very low holding current reduces power consumption.
Durability: High resistance to environmental factors (IP57 rated for some models).
Maintenance: Long service life with reduced maintenance costs due to solid-state technology.
Functionality: Options for built-in overcurrent, short-circuit, and thermal load protection.
Applications
Battery Management
Power Distribution
Circuit Protection in Harsh High-Load Environments
