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Official distributor and wholesaler of relays from brands such as Crouzet, Crydom and Finder
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Over 40 Years Experience
E. Preston Electrical

Relays

What is a Relay?

Relays are electrically operated switches that open and close circuits receiving electrical signals from external sources. The relays built into electrical products work in a similar way; they receive an electrical signal and send the signal to other equipment by turning the switch on and off. The three main functions of relays are to allow a small amount of electrical current to control high current loads, send different types of electrical signals, and drive multiple outputs with just one input.

What Do We Supply?

We have a broad range of relays in stock, including:
Modular step relays
Monostable relays
Ultra-slim PCB relays
Relay interface modules
Miniature PCB/plug-in relays
Low profile PCB relays
Miniature industrial relays
Safety relays
Power relays
Miniature power relays
Solid State relays
Relay bases
Coil indication
EMC protection

Why Choose E. Preston?

We are an official distributor and wholesaler of relays from brands such as Crouzet, Crydom and Finder. These are well known companies in their fields with excellent reputations for the quality of their products.

What really sets us aside from our competition is our choice and range of relays – you really don’t need to look anywhere else for your requirements.

As we have been operating for over forty years, we have developed a fantastic relationship with our suppliers. This benefits us in two main ways: We gain access to the widest choice of components from those suppliers, and secondly, they sell us those components at competitive prices because we purchase such significant volumes. We are able to pass on those competitive prices to you, our customer.

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, and we can get your order for stock items out to you in a 24 to 48 hour time frame.
and we can talk through your specific relay requirements.

Featured Products

Manufacturers

News

September 18, 2025

Schurter USL 0603: Chip Fuse for ATEX and Precision Applications

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Schurter usl

Low-Current Chip Fuse for ATEX and Precision Applications

  • Chip fuse of dimension 0603
  • Extended creepage distance of 1.1 mm (Pad-to-Pad)
    according to IEC 60079-11
  • Ideally suited for ATEX and other precision applications
    to protect against smallest overcurrents

In modern electronic applications - especially in safety-critical areas such as ATEX certified environments - the requirements for miniaturization, precision and thermal resistance are constantly increasing. The new USL 0603 low-current fuse has been specifically developed to meet these requirements.

An outstanding feature of the USL 0603 is the extended creepage distance of 1.1 mm (pad-to pad). This means that it meets the requirements of IEC 60079-11 for 60 VDC applications in which a minimum creepage distance of 1 mm is required. This makes it one of the few fuses in the 0603 format that can be used without hesitation in ATEX applications - for example in the oil and gas industry, chemical processing or mining.

Quick Acting Characteristic
Thanks to its fast tripping time (tripping at 2.5 times the rated current in under 5 seconds), the USL 0603 offers precise protection for sensitive circuits. At the same time, its low voltage drop ensures minimal energy losses - an advantage that pays off not only in ATEX applications, but also in battery-operated designs.

Wide Operating Range
With an extended operating temperature range of up to 150 °C, the fuse is ideally suited for demanding thermal environments - from mobile medical diagnostic devices to industrial sensor applications.

Typical Applications
Ideal areas of application for the USL 0603 are ATEX-certified systems in which potential ignition sources must be avoided through reliable current limitation. The chip fuse is also highly suitable for medical devices, where precise tripping times and low power loss are crucial. There are also sensor applications in industry and consumer electronics, which are particularly sensitive to overcurrent.

Schurter usl applications

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

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

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September 15, 2025

Honeywell NGC Series MICRO SWITCH Compact Limit Switches

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Honeywell MICRO SWITCH Compact Limit Switches, NGC Series, are a configurable platform of medium duty switches that allow the customer to choose SPDT (single pole, double throw) or DPDT (double pole, double throw) circuitry while maintaining the same housing and mounting footprint throughout the NGC Series.

Honeywell ngc series

MICRO SWITCH NGC Series can be configured more than 380,000 ways, carries global approvals, and are sealed to IP67 for potential use in indoor and outdoor
applications.

With two times the vibration (10 g) and shock (50 g) ratings of comparable competitive devices, the NGC Series can be implemented in the harshest of environmental conditions, providing enhanced reliability and repeatability.

Broader current capacity (10 A) than comparable devices allows for potential use in a wider set of applications, making platform standardization an easier task.

Features:
• SPDT or DPDT configurable circuitry
• Snap-action, positive-break contacts
• Silver alloy and gold-plated contact options
• UL, CE, UKCA, cUL, and CCC approvals
• Conforms to IEC 60947-5-1, IEC 61373, EN 45545-2
• NEMA 1, 4, 12, 13; IP67 sealing
• Metal and plastic housing options
• Low and high temperature variants
• Cable and connector terminations
• Variety of heads and actuator levers

Applications:
• Boom position detection
• Elevators and escalators
• Machine tools
• Mobile light towers
• Packaging equipment
• Rail doors
• Scissor lifts

Value To Customers

  • Cost-Effective:
    Provides a single source for a compact SPDT and DPDT limit switch, which can help minimize the Original Equipment Manufacturer’s sourcing expenses by
    simplifying their supply chain
  • Versatile:
    Durable packaging allows for use in many harsh indoor or outdoor applications, providing performance confidence
  • Configurable:
    Allows design engineers to standardize on a single footprint while meeting a variety of electrical requirements
  • Application Support:
    Customers with a global footprint can count on Honeywell for regional support for new applications and troubleshooting

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

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

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