Contact Us
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
E. Preston Electrical

Circuit Protection

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

Featured Products

Manufacturers

News

July 3, 2026

Schurter Series: 4750 Strip Block for Snap-in Mounting

Image

4750 Strip Block for Snap-in Mounting with up to 7 IEC Appliance Outlets F

Shurter

The Schurter 4750 Series is a configurable, snap-in mounting strip block designed for high-density intelligent Power Distribution Units (PDUs) and data center equipment. It compactly houses 2 to 7 IEC Appliance Outlets (Type F) and eliminates the need for external LEDs by integrating optional light pipes for status indication.

Description:

  • Panel mount
  • Snap-in version front side (1.2 / 1.5 / 1.7 mm)
  • Configurable Strip block from 2 up to 7 outlets type F
  • Cord retention for cordsets with V-Lock, Twylock or P-Lock
  • Pre-assembled Light Pipe for status indication
  • Solder / PCB / QC (4.8 / 6.3 x 0.8) mm

Key Features:

  • Configurable Bus bar (L, N, PE)
  • Optionally with or without light pipes on L or N side
  • Color coding in black (grey and white upon request)
  • Solder / PCB / QC (4.8 / 6.3 x 0.8 mm)

Characteristics:

  • Compact solution for intelligent PDU applications
  • Suitable for use in equipment according to IEC/UL 62368-1

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

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

MORE
July 2, 2026

Finder 77 Series: Modular Solid State Relays (SSR) 5-15-30A

Image

77 Series: Modular Solid State Relays (SSR) 5-15-30A

Finder 77 Series

The 77 Series is made up of modular and “hocky puck” style solid state relays

Functions & Features (according to Type):

  • Input AC or DC
  • 230V AC or 400V AC output
  • Rated voltage range (19…305)V AC or (48…480)V AC
  • Zero-crossing and random switch-on versions
  • Suitable for lamp loads
  • 17.5 and 22.5 mm housing

Features (“hockey puck”):

  • Input AC or DC
  • 230 V AC or 400 V AC output
  • Switching voltage range (19…305) V AC or (48…480) V AC
  • Suggested applications: heater control
  • Mounting to heatsink with screws
  • Zero-crossing version

Applications:

  • Drying kilns
  • Heating and cooling
  • Lighting control in corridors (for hotels, offices and hospitals)
  • Bottling plant
  • Labelling machines
  • Packaging machines

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

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

MORE
See all news
Privacy Policy
Website built and optimised by Miltec Digital

Get In Touch

Fill in your details to request a call from one of our sales representatives.
E Preston Contact Form
chevron-leftchevron-right linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram