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As an official distributor for Bulgin & Arcolectric, CML, Cherry, ABB, Eaton, Honeywell, Tranilamp and Schurter, we have access to many different types of switches suitable for numerous applications.
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E. Preston Electrical

Switches

What is a Switch?

A switch is an electrical component that will either connect or disconnect the conducting path in an electrical circuit. The electrical current is either interrupted or diverted from one conductor to another.

What Do We Supply?

We supply an extensive range of switches for a variety of markets and applications.
These include:
Push Button switches
Piezo switches
Vandal Resistant switches
Toggle switches
Slide switches
Micro switches
Rocker switches
Safety switches
Limit switches
Rotary switches

Why Choose E. Preston?

Our switch range has been created to meet the design requirements of a wide variety of applications for our customers, ranging from medical and industrial to marine and commercial electronics. The range and the choice we have available may mean that E. Preston will be your only choice for switches.

Each switch is available in an array of options including: front and rear panel mounted versions; different profile types including prominent, domed and low profile; a variety of materials such as rugged stainless steel anti- vandal options. Multiple switching options are also available along with IP66, IP67 & IP68 sealed variants in addition to momentary and latching actuation. Illumination versions are available in dot and ring LED indication and a selection of illuminating colours, including bi-colour and tri-colour. Newer versions also feature LED illumination driven by 6V, 12V and 18V.

As an official distributor for Bulgin & Arcolectric, CML, Cherry, ABB, Eaton, Honeywell, Tranilamp and Schurter, we have access to many different types of switches suitable for numerous applications. Our range and choice are second to none, so you won’t have to go anywhere else for your requirements. Add in the convenience of next day delivery, alongside a team that can provide expert technical assistance and support over the phone if required, and you will have the peace of mind that you are being well looked after.
to discuss your needs.

Featured Products

Manufacturers

News

March 5, 2026

Schurter 4770: Dual Block Outlet 16A with Snap-in Mounting

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Schurter

4770: Dual Block Outlet 16A

  • IEC 60320 type J 16 A, Dual
  • Available in black, white or grey
  • Snap-in version front side

The demand for higher power density in data centers and industrial environments is constantly growing. Schurter is responding to this development with the new 4770 dual block outlet, which is designed for a rated current of 16 A and optimized specifically for use in power distribution units (PDUs). The 4770 combines a robust design with easy installation.

Thanks to its dual block configuration, the outlet can be integrated into power distribution units (PDUs) in a space-saving manner. The proven snap-in mounting system ensures quick and secure installation and reduces installation effort.

The 4770 outlet is available in black, gray, or white, offering flexible design options for different applications (multi-phase systems). Various connection options (standard: QC 6.3 mm; QC 4.8 mm; solder connections, and PCB mounting available on request) allow easy adaptation to different wiring concepts. VDE, UL, and CCC certifications ensure international compliance and a high level of safety and reliability.

The dual outlet is designed for currents of up to 16 A at 250 VAC according to IEC and 20 A at 250 VAC according to UL. It is designed for an operating temperature range of –25 °C to +70 °C. Installation is via snap-in mounting (standard: wall thicknesses 1.2 mm and 1.5 mm, 0.8 mm to 3.0 mm on request).

The 4770 dual outlet is ideal for use in data centers, industrial plants, IoT infrastructures, and IT as well as telecommunication systems. In other words, wherever compact and powerful power distribution is required.

Schurter 4770 App

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

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

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March 4, 2026

Finder Power Supplies: 78 Series / OPTA

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Finder 78 Series / OPTA Power Supplies

Finder 78 OPTA Series PS

78 Series Switch Mode Power Supplies

Finder 78 Series PS

The 78 Series is a range of low profile
modular power supplies for electrical
cabinets and industrial switch mode power
supplies. KNX power supply with rated output
30V DC 640mA available.

Function & Features (according to type):

  • Output powers 12, 36, 50, 60, 120 or 130 W
  • Input (110 … 240) V AC or 220 V DC
  • Class B according to EN 55022
  • Replaceable input protection fuse plus spare
  • Varistor for protection against overvoltages
  • Width 17.5, 40 or 70 mm

Applications:

  • Building Automation
  • Elevators and Lifts
  • Automation for Blinds, Grilles and Shutters
  • Hoists and Cranes
  • Panels for Electrical Distribution
  • Pump Control

OPTA Power Supply

Finder OPTA PS2

Optimal Performance and Maximum Protection with Finder's Power Supply Type 78.12….2482, specifically designed for use with OPTA

Providing the power needed to operate Finder’s PLRs (Programmable Logic Relays), the OPTA power supply provides a 24 V DC supply voltage, and can handle high inrush currents.

The OPTA power supply is also surge protected – from surges attributable to the power grid, overheating, short-circuits, and those generated by other connected devices – ensuring a reliable and durable product.

The OPTA power supply is also suitable for use in SELV (safety extra-low voltage) systems (according to EN 60950). The Type 78.12….2482 has attained ENEC and UL certifications – attesting its compliance with international safety standards.
Here are some of its features and specifications.

Features & Specifications:

  • 17.5 mm (1 module) x 61 mm deep
  • Low (< 0.4 W) stand-by power consumption
  • Thermal protection: internal, with Vout shutdown – power OFF to reset
  • Short circuit protection: Hiccup (auto-recovery) mode
  • Overvoltage protection: Varistor
  • Flyback topology
  • Compliant with EN 60950-1 and EN 61204-3
  • Parallel working for automatic redundancy – with OR diodes
  • Dual Polarity and Series connection permissible
  • 35mm rail (EN 60715) mount

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

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

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