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

Motors

Solenoids

News

April 20, 2026

Finder 7H Series: Panel Heaters

Finder 7H Series Panel Heaters

The 7H Series of panel heaters prevent condensation
and ensure the optimum temperature within an electrical
panel.

Functions & Features (according to Type):

Heater Power 25 – 50 – 100 or 150W
Fan Assisted Heaters 250W and 400W
Power Supply 110…230V AC/DC
PTC Self-Regulating Heating System
Safe Touch
35mm Rail (EN 60715) Mount with Clip

Applications:

Drying Kilns
Hoists and Cranes
Road / Tunnel Lighting
Automatic Car-Washe
Panels for Electrical Distribution
Control Panels
Forced-Air Ventilators

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

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

April 17, 2026

Finder 7T Series: Panel Thermo-hygrostat and Thermostats

7T Series Panel Thermo-hygrostat and Thermostats

The 7T Series comprises a range of thermo-
hygrostats and thermostats which ensure
performance of components and instrumentation
in control panels and enclosures, and can
prolong product life.