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

March 27, 2025

Hylec Rotary Isolator Switches

Hylec Rotary Isolator Switches

Isolator switches are vital when working with electrical circuits. Hylec Isolator Switches provide fast electrical isolation for industrial machinery, commercial buildings, power supplies, security equipment and HVAC at one of the best price/performance ratios on the UK market.

Isolator control switches are manufactured from completely flame retardant polycarbonate, rated to UL94V-0, providing an additional margin of safety over competitive products with a lower flame-resistance rating.

Features:

IP66 Rated
AC & DC Range
Flame Retardant UL94V-0
4-Pole + Earth Terminal Included
Large Housing - Superior Cable Management
TUV & UL Approved
Captive Retained Cover Screws
Can be Padlocked (Padlock Not Included)
Best Price Performance on UK Market

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

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

March 18, 2025

Sensata / Crydom CKR Series (DIN Rail Mount AC Output) Solid State Relays

CKR Series 22.5mm Wide DIN Rail Mount Solid State Relay

The CKR Series is a family of 22.5mm wide DIN Rail Mount Solid State Relays with ratings from 10 to 30 Amps at 280, 530 and 660 VAC.