First Choice for Security,
Control and Communication.

Distributor to over 1800 wholesalers

APT Range

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 are competitively priced.

UK and Ireland Sole Distributor

Orbis is a leading European manufacturer of products and services for energy management, measurement & efficiency.  They have an extensive range of over 600 products covering Timers, Motion & Presence Detectors, Climate Control & Home Automation, Energy Measurement & Management, Outdoor Lighting Management, and EV Chargers.

With over 65 years of experience, you can be sure their products will be of the highest quality. They carry the CE label on all their products, certifying their compliance with the European and International Guidelines on Quality and Safety.

Product Range


Our range of security products will have all your needs covered from Access Control, Door Entry, Video and Audio Entry, Vandal Resistant and more.

Time Controls

The IMM range is a range of Immersion Heater and Industrial Time Switches suitable for all requirements.

Solar & Digital Timers

Simple DIN Rail installation, Astronomic Time Switches, automatically calculate the sunrise/sunset times based on geolocation. Blue Tooth Dongle applications.


Internal, External Shoot Bolt, Electro-Magnetic, Fail Safe or Regulator.   A selection of locks to suit a variety of applications.

Disability Products

Call for Assistance, Toilet Alarms, Door Release Switch, Induction Loop Amplifiers, Push for Assistance, Door Openers.   Our range is reliable and cost effective for whether calling for assistance or raising alarms.


Digital programmable, wire free radio controlled, tamper resistant – it’s all here.

Industrial Controls

A range Isolators to cover many applications from 20 to 80 amp either lockable, rotary, palm/foot, control stations, hoist control and stop-start.

Cable Protection

Re-useable PVC cable protector in clear and grey, formulated to meet REACH regulations.  Suitable for stage areas exhibitions, retail etc.

Fuses & General Products

Contractor Fuse Packs, Electronic, Cartridge and Consumer Fuses. Submersible Pumps and Fan Assisted Space Heaters for commercial use.

Free Technical Service

Take advantage of our FREE technical advice and system design service available Monday to Thursday.

  • if you have a detailed specification requirement
  • would like advice on the right product to use
  • query on suitability for a particular environment or application
  • or a quotation

Contact our Technical Advice Service on 01923 220 277 or email

About Us

For over 45 years we’ve been supplying outstanding products that give you and your customer peace of mind… knowing that when you buy from us every product has undergone a rigorous quality control assessment programme.

This may take many months and nothing is passed until we are 100% confident that it will exceed your expectations.

It’s vital for us to know that when you receive an ERL product you and your customers will be delighted with its functionality as well as being great value for money.

Contact Us