Guide to Consumer Units

Consumer Unit Guide

Consumer Units Made Easy

Finding it difficult to find the correct consumer unit, fuse box or fuse board? This page is a break down of all our consumer units to ensure you find everything you need without trouble.

Read below for all of the information you need about consumer units. If you still can't find the consumer unit you desire, Please call us on: 0208 783 9995

Consumer Units are also known as a fuse box or fuse board and are a necessity in any home or workplace. A consumer unit usually contains three things, which are used to control and distribute electricity around your property. These other three parts are the fuses and/or circuit breakers, Residual Current Devices and RCBO's


Modern Consumer Unit

This image shows a Modern Consumer Unit with main switch

A) Main Switch

B) Fuses or circuit breakers

C) Residual Current Device


Old Wylex Consumer Unit

This image shows an Old Style Consumer Unit with main switch

A) Main Switch

B) Re-Wireable fuses

No RCD


Mains Switch This is a Mains Switch which allows you to turn off the electricity supply to your home/workplace.

Single RCD RCDs (Residual Current Devices) are electrical safety switches that remove the supply to an electrical circuit when the circuit is unsafe. If an RCD ‘trips’ it has tripped for a reason, the problem is rarely a faulty RCD.

MCB This is an MCB (Minature Circuit Breaker) which is an automatic protection device in the fusebox that switches off a circuit if they detect a fault. They are similar in size to fuses, but give more precise protection. When they ‘trip’, you can simply reset the switch. But make sure you correct the fault first.

RCBO This is an RCBO (Residual Current circuit Breaker with Overload) which combines the functions of a MCB and a RCD in one unit. They are used to protect a particular circuit, instead of having a single RCD for the whole building. 

Old Wylex Consumer Unit If your Consumer Unit at home/workplace looks like this old style consumer unit (Left) you will need to have a look at these consumer unit to replace it: 
Hager 17th Edition Consumer Units Hager 17th Edition Consumer Units
Consumer Unit Europa 17th Edition Consumer Units
BG Electrical Consumer Units BG Electrical Consumer Units

For our affordable Shower and Garage Units, click below:

Shower Unit Shower Units
Garage Unit Garage Units


For commercial use, check out our Three Phase Consumer Units and Accessories below:

Hager 3 Phase Hager Three Phase Consumer Units
Hager 3 Phase Type C Hager Three Phase Type C MCBs


For budget Europa Consumer Units and Accessories, click below:

Europa Main Switch Europa Main Switch
Europa MCB Europa MCBs
Europa RCBO Europa RCBO's

For 17th Edition Consumber Units and Accessories, Click Below: 

Hager 17th Edition Consumer Units Hager 17th Edition Consumer Units
Consumer Unit Europa 17th Edition Consumer Units
BG Electrical Consumer Units BG Electrical Consumer Units

For Hager Consumer Units and Accessories, Click Below:

Hager Main Switch Consumer Units Hager Main Switch Consumer Units
Hager Single Phase Type B MCB Hager Single Phase Type B MCBs
Hager Single Phase Type C MCBs Hager Single Phase Type C MCBs
Hager RCBO Hager RCBO's 

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