Meter Isolation & Changeover Switches
Meter isolator switches and manual changeover switches for safe, compliant installs. Ideal for disconnecting supply between meter and consumer unit, or switching between grid and backup power. All units are BS EN certified, installer-friendly, and UK stocked with next-day delivery.
Read more about meter isolation & changeover switches
Adding an isolator between the electricity meter and consumer unit is now common practice across the UK, allowing safe upgrades and maintenance without relying on DNO intervention. Manual changeover switches give you the ability to transfer supply between mains and alternative sources such as generators or UPS systems, providing continuity of power in commercial and domestic settings.
Choose from double-pole isolators, compact enclosures, or full metal-clad housings to meet 18th Edition wiring regulations and BS EN standards. All units are labelled, durable, and backed by manufacturer-supported warranties.
100A Plastic Meter Isolator WEC2100
£10.95
The WCED WEC2100 100A Meter Isolator is a twin-pole main switch housed in a compact 2-way plastic enclosure. Designed for safe and reliable circuit isolation, it’s ideal for residential and commercial meter isolator installs where space is limited but secure disconnection is essential. Its compact...
2 Way Plastic Meter Isolator Enclosure
£6.62
These WCED plastic meter isolator enclosures provide a compact, secure housing for main switches, RCDs, RCBOs, and other protective devices. Available in 2-way and 4-way sizes, they are designed for tight-space installations while maintaining easy access for servicing and inspection. Each enclosure is supplied with...
Metal Meter Isolation - 2 Way Double Terminal Main Switch - MEC2100
£14.90
The MEC2100 is a compact 2-module metal meter isolator with a 100A Double Pole Main Switch and twin screw terminals for secure tail clamping. Installed between the electricity meter and consumer unit, it provides clear, safe isolation - now increasingly required by DNOs and supply...
WME44100 4 Way IP40 Metal Enclosure with 4 Pole 100A Main Switch
£18.99
The WME44100 is a 4-way IP40 steel enclosure pre-fitted with a 4 pole 100A main switch. Designed to provide safe and reliable isolation, it is suitable for both 230V (2P) and 400V (4P) systems, making it a versatile solution for domestic, commercial, and light industrial...
4 Way Plastic Meter Isolator Enclosure
£7.95
These WCED plastic meter isolator enclosures provide a compact, secure housing for main switches, RCDs, RCBOs, and other protective devices. Available in 2-way and 4-way sizes, they are designed for tight-space installations while maintaining easy access for servicing and inspection. Each enclosure is supplied with...
How Meter Isolator & Changeover Switches Are Used
Meter isolators and changeover switches are essential for safe electrical work and reliable backup supply management. They allow you to isolate power between the meter and consumer unit, or switch between grid and generator/alternative feeds without compromising safety or compliance.
Types of Switches Available
- Meter isolator switches – double-pole devices that safely disconnect the supply between meter and board for maintenance or upgrades. Example: 100A Meter Isolator.
- Manual changeover switches – enable switching between grid supply and backup sources (e.g. generators, UPS). Example: 4-Pole Changeover Main Switch.
- Metal vs plastic housings – metal enclosures are now preferred under BS 7671 for fire safety, though plastic options remain in use for specific installs.
Frequently Asked Questions
Do I need an isolator between my meter and consumer unit?
Yes – many DNOs now require a meter isolator to be installed to allow safe consumer unit maintenance without tampering with the service fuse.
What’s the difference between an isolator and a changeover switch?
An isolator disconnects supply for safe working. A changeover switch transfers load between two power sources (e.g. mains and generator).
Compliance & Standards
All isolators and changeover switches in this range are BS EN certified and suitable for use under 18th Edition wiring regulations. Options include double-pole isolators, compact meter enclosures, and full metal-clad units.
Trusted Supply
Every product is UK stocked, supplied with a manufacturer warranty, and dispatched with next-day delivery available on orders over £30. Easy returns are supported via our returns policy.
Related Categories
Need advice on the right isolator or changeover switch for your project? Contact our team today.