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The many benefits of having an account with us include – 30 days credit, next day delivery, exclusive offers, free technical support, access to ERL Online and more…

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Discover our FULL product range at our Online Store

Access Control

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Door Entry

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Power Supplies

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Time Switches

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Lighting Controls

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Thermostats & Heating

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Assistance Alert

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Industrial Controls

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Energy Measurement & Management

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Cable Management

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Clocks, Tools & AV

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APT is a registered brand, exclusive to Electro-Replacement for over 30 years, covering a wide range of products from security, control and communication.  All our products adhere to strict quality control standards.

Only we can offer the original BEAB approved, genuine and well-proven IMM range of immersion heater time switches.

APT is a brand synonymous with quality goods, superb value and competitively priced.

Exclusive Distribution Partner

When you choose Electro-Replacement, you are receiving products that are not available anywhere else. Working together with partner manufacturers, we can provide you with top-tier products that are exclusive to us.

Electro-Replacement Ltd is the sole distributor of Orbis products in the UK and Ireland. Orbis has over 65 years experience and is the leading European manufacturer of products and services for energy measurement, management and efficiency.  By choosing the Orbis brand you can be sure you are getting the highest quality products.

Discover the Orbis product range
Electro-Replacement Ltd Catalogue Cover

Catalogue Downloads

To view the full range of Electro-Replacement products – including our exclusive Orbis and APT brands, take a look at our latest catalogues.  Inside you’ll find a huge range of security, control and communication products to suit your needs.

Download Electro-Replacement & Orbis catalogues

Technical Services

Electro-Replacement offers a free, comprehensive technical support service.  Available every Monday to Thursday, 0900 – 1630.

Our service is ideal if you:

  • Have specific requirements you would like to discuss
  • Need advice on the best products for your situation
  • Queries about the suitability for the application or the environment of your product
  • Need a detailed quotation

Contact our Technical Support Service on 01923 220277 or email us at