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

February 4, 2026

Schurter MSM II-Switch with Common Anode Control of RGB LED

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Schurter MSM

MSM II-Switch with common anode control of the RGB LED

  • Optimised for industrial control architectures
  • Usual SCHURTER Metal Line quality
  • Protection class IP67

The well-established MSM II mechanical switch family is growing. With the MSM II (Common Anode), Schurter is introducing a variant that uses a common anode to control the RGB LED illumination. This combines the familiar robust mechanics with visualization technology for clear feedback, easy integration, and maximum reliability in control and operating solutions.

RGB LEDs can be controlled either via a common anode (+) or a common cathode (–). While with common cathode all negative poles are connected together and the colors are controlled individually via the positive pole, the common anode variant does the opposite: all positive poles are connected, and the color channels are switched separately to ground.

The MSM II (common anode) offers maximum compatibility with modern driver ICs, PLC outputs, and microcontrollers, which are predominantly designed for common anode control. This facilitates integration thanks to a simple signal structure and reduced wiring requirements.

The combination of tactile precision, IP67 protection, robust design, and flexible RGB signaling makes the MSM II switch ideal for a wide range of applications, particularly in industrial control units such as control panels, production facilities, building automation, and access solutions.

The combination of tactile precision, IP67 protection, robust design, and flexible RGB signaling makes the MSM II switch ideal for a wide range of applications, particularly in industrial control units such as control panels, production facilities, building automation, and access solutions.

Schurter MSM 11 App

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

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

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January 29, 2026

E-T-A Solid State Remote Power Controllers

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Solid state remote power controllers are used for reliable protection, switching and monitoring of DC 24 V circuits and loads in the steel industry, automation and chemical industry.

SSRPCs are suitable for reliable switching, protecting and monitoring of resistive and inductive loads. The offer a range of functions including overload and short circuit protection as well as wire break detection, they help to avoid consequential damage or system downtimes, thereby reducing costs.

ETA Controllers Pic1
ETA Controllers Pic2

Applications:

  • Factory Automation & Machinery: Used for switching and protecting DC 24V circuits, particularly in steel, chemical production, and machinery control, adhering to safety standards like EN 60204.
  • Commercial Vehicles & Transportation: Ideal for buses, trucks, construction machinery, and agricultural vehicles to replace mechanical relays for increased longevity.
  • Industrial Control & Process Control: Used for controlling solenoids, magnetic brakes, and clutches.
  • Power Distribution: Employed in intelligent power distribution systems (e.g., ControlPlex®).
  • Medical & Equipment Technology: Utilized in professional tools and commercial kitchen appliances.

Benefits:

  • Diagnostic Capabilities: Features built-in monitoring for wire breaks, overload, and short circuits.
  • Reduced Downtime: Eliminates mechanical wear, improving system reliability.
  • Reduced Wiring: Minimizes wiring efforts in complex control cabinets.

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

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

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