Circuit Protection

We stock thousands of circuit protection products for a broad range of applications from quality brands such as ABB, Bulgin, Bussman, E-T-A, Littelfuse, Schaffner and Schurter

UK Next Day Delivery

Expert Advice

No Min Order Charges

Technical Support

Flexible Payment Terms

Over 40 Years Experience

What is a Circuit Protection device?

A circuit protection device is a fail-safe device that originates a disruption in an electrical circuit when it recognizes an excess and unsafe power load in a circuit. The main aims of circuit protection are to localise and isolate the situation or fault and avert and minimize any unnecessary power loss.

What Do We Supply?

We have broad selection of circuit protection devices, including:

Circuit breakers

Thermal circuit breakers

Thermal-magnetic circuit breakers

Magnetic circuit breakers

Hydraulic-magnetic circuit breakers

Fuses

LV fuse links

LV fusegear

Why Choose E. Preston?

Established in 1980, we offer customer service that is second to none. This is one primary factor behind the growth in business we have experienced over the past forty two years. We have expert knowledgeable staff who are always on hand to answer any technical questions you might have about our products – they are just a phone call away.

The second main reason behind the company’s growth is the sheer depth in our products. We stock, or have access to, thousands of circuit protection products for a broad range of applications. The quality brands that we deal with include ABB, Bulgin, Bussman, E-T-A, Littelfuse, Schaffner and Schurter. You don’t have to search anywhere else for your needs.

In addition, we will do our very best to make sure that you receive your order next day, as long as you order in time, and if required, and we can offer flexible payment terms.

Call us now on:

+44 (0) 161 339 5177

Send us a message

to place an order or speak to our technical team about circuit protection devices.

Featured Products

Switches

Switchgear and Control Gear

Relays

Electrical Timers

Fuse Holders

Electrical Connectors

Electrical Indicators

Battery Holders

Power Inlet Modules

IEC Connectors

Power Supplies

EMC Filters

Terminals and Terminal Blocks

News

May 8, 2025

Finder 43 Series PCB Relays

Finder Low-Profile P.C.B. Relays 10 - 16A

The 43 Series is a range of miniature PCB relays with the following features (according to Type):

Function & Features:

Low profile, 15.4mm height
Sensitive DC coils: 250mW or 400mW
Very high coil contact isolation 10mm, 6kV (1.2/50μs)
Flux proof: RTII standard, (RTIII option)
3.2 or 5mm pin pitch

Applications:

Medical and Dentistry
Alarm Systems
Air Conditioners
Burners, Boilers and Furnaces
Electric and Electronic Toys and Games
Door and Gate Openers
Electronic Circuit Boards
Vending Machines

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

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

May 7, 2025

Crouzet High-Power DC Density Motors

Understanding High-Power Density motors is simple, it means high-power, high-efficiency and heavy-robustness within the lowest possible weight and in a compact size. They are mainly used in critical market applications such as medical equipment and aircrafts.

Thanks to Crouzet’s vast experience designing, manufacturing an qualifying DC motors, we can offer the following new technologies to develop a perfect-fit motion solution for your most specific and critical demands.

Features:

High slot fill
Distributed and concentric winding
Skewed stator and rotor
Rotor sleeving made of Carbon Fiber, Kevlar and Stainless Steel
Winding laced, varnished, encapsulated and partial discharges resistant

Benefits:

Specific certifications and international standards
State of the art materials and practices in your market applications
Top performance levels and robustness