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We stock and distribute EMC filters from well-known manufacturers and brands such as 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

EMC Filters

What is are EMC Filters?

An EMC or EMI filter is an electronic device used to reduce electromagnetic interference (EMI) in a power supply. It is typically used in power supplies, such as those found in computers, TVs and other electronic devices. The filter works by blocking the high-frequency noise generated by the power supply, allowing the device to operate more efficiently and with less interference.

What Do We Supply?

We supply an extensive range of EMC filters, including:
DC Filters
Single-Phase Filters
3-Phase Filters
IEC Inlet Filters and Modules
EMC/IEC Chokes
PCB Filters
Feedthrough Filters
Pulse Transformers

Why Choose E. Preston?

We stock and distribute EMC filters from well-known manufacturers and brands such as Schaffner and Schurter. The quality of their products is second to none, as is the quality of the service to you, the customer. We aim to provide next day delivery for product orders, and are happy to discuss flexible payment options too.

We have highly knowledgeable and experienced staff who are only a phone call away from answering any technical query you might have about any of our products.

Operating for over forty years, we have developed an excellent realationship with our suppliers which means that we get the widest choice of components from those suppliers, but we also alchieve good prices from them because of the volumes we purchase. We are able to pass on those great prices to you, the customer.

Our range of products, including EMC filters, is what sets us apart from our competition. You won’t need to to look anywhere else for your requirements.

We have a large stockholding of our products at our warehouse in Dukinfield, Cheshire in the UK. This stock means that our product availability is consistently high.
to place an order for EMC filters, or to receive technical assistance.

Featured Products

Manufacturers

News

December 9, 2025

Sensata / Crydom DRA1 Series (DIN Rail Mount DC Output) Solid State Relays

Image

10mm wide SSR assemblies. Ratings from 3 to 10 Amps at 1-200 VDC. Bipolar transistor or MOSFET output.

Crydom DRA1

The DRA1 Series combine DC output PCB mounted
Single-in-Line Solid State Relays with 10mm wide
DIN rail mounted sockets to create ready-to-use
assemblies, which are ideal for low to medium
power control for heating, lighting or motion
control applications.

Features:

  • Ratings from 3A to 10A and 1 VDC to 200 VDC
  • Single Channel Output
  • Transistor or FET output
  • LED input status indicator
  • DC control

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

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

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December 5, 2025

Finder 7S Series Modular Relays with Forcibly Guided Contacts 6-10A

7S Series Modular Relays with Forcibly Guided Contacts 6-10A

Finder 7S

The 7S Series consists of relays with forcibly guided contacts for SIL 2/SIL 3 safety applications, include the following features (according to Type)

Functions & Features:

  • For safety applications, with class A forcibly guided
    contact relays (EN 50205)
  • 2 pole (1NO + 1 NC), 4 pole (2 NO + 2 NC and 3 NO + 1 NC)
    or 6 pole (4 NO + 2 NC)
  • 35 mm rail (EN 60715) mount, 22.5 mm wide
  • Available version for railway applications

Applications:

  • Hoists and Cranes
  • Carousel Warehouses
  • Escalators
  • Elevators and Lifts
  • Automatic Car-Washes
  • Chemical and Petrochemicals
  • Process Industry

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

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

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