EMC Filters

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

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.

Call us now on:

+44 (0) 161 339 5177

Send us a message

to place an order for EMC filters, or to receive technical assistance.

Featured Products

Switches

Switchgear and Control Gear

Relays

Electrical Timers

Fuse Holders

Electrical Connectors

Electrical Indicators

Battery Holders

Power Inlet Modules

IEC Connectors

Circuit Protection

Power Supplies

Terminals and Terminal Blocks

News

April 22, 2025

Honeywell HLD Series: Hydrogen Leak Detection Sensor

The Hydrogen Leak Detector (HLD) Sensor uses the Honeywell advanced compensation algorithm to detect Hydrogen leaks in different applications. Designed with precision and reliability in mind, the HLD Sensor employs cutting-edge Thermal Conductivity Detection (TCD) technology to deliver lasting performance for many applications that require a highly accurate solution without manual intervention for ten years.

Its advanced detection capabilities ensure the identification of hydrogen leakage of 50 ppm or greater. Honeywell HLD Sensors can be utilized in many industries, such as automotive, industrial safety equipment, and residential power generators.

The incorporation of TCD technology in the HLD sensor offers several key advantages over catalytic beads. These benefits include greater accuracy, extended sensor lifespan, and enhanced resistance to chemical poisoning. With these advantages, the HLD sensor gives users the confidence that both lives and assets are well-protected.

Features:

High accuracy
CAN communication protocol (available) and voltage reading output (coming soon)
Thermal conductivity base sense element
Fast response time: <2 seconds
Short startup time: <1 second
Hydrogen sensing range: 0 % to 4 %
Operating temperature range: -40°C to 85°C [-40°F to 185°F]
50 H2 ppm resolution to detect low levels of H2 leakage
Resistant to chemical poisoning

Applications:
The HLD sensor is typically adjacent to the hydrogen storage tank, hydrogen gas piping, fuel cell, or vehicle cabin.

Hydrogen-powered heavy-duty trucks
Hydrogen-powered buses
Hydrogen-power generators
Hydrogen-powered automobiles
Hydrogen-powered construction equipment
Hydrogen-powered aircraft

Value to Customers:

Accurate: Designed for precise H2measurements to improve safety, allowing enhanced protection of assets and life
Reliable: TCD technology usage enables the customer to reduce downtime by eliminating false positives
Packaging: The IP67 seal allows the use of HLD even in numerous applications

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

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

April 15, 2025