Design Range Consumer Units

We offer rectangular knockouts in the Consumer units to provide flexibility in cable entry and installation. Square knockouts are preferred over round knockouts in some installations because they offer a perfect fit for rectangular cable trunking, for the incoming supply cables and outgoing cables.

Our knockouts on our Design range boards are positioned at the correct distance from the wall to accommodate common sizes of trunking. We designed them to be rectangular to provide the maximum cable capacity and be aligned with the shape of trunking. We offer a wide range of clip in plastic cable protector plates to protect the incoming and outgoing cables to remove the need of using a grommet strip that can be difficult to install especially when bringing cables into the board, the rectangular knockouts also provide a larger area to bring cables into the board rather than the traditional round knockouts.

Hager UK Consumer Units are made on-site in our factory in Telford. 

An AFDD is activated by both series and parallel arc faults. Unlike circuit breakers or RCDs, an AFDD does not have an electromechanical trigger, but utilises electronic technology to analyse the signature (waveform) of an arc.

Overload protection & Fault protection

Overloads occur when the circuit is electrically sound but the equipment is for some reason drawing excess current.  Since the circuit is electrically sound there is no need for the protective device to operate quickly.  Provided the reason for the overload is removed after a period of time, then the protective device need not operate at all.

With fault protection however there is a problem with the circuit or equipment and current is flowing through an unintended path.  The protective device in this instance must operate quickly to avoid the risk of electric shock or fire

Surge protection should be installed at the point where the electrical power enters a building or a home, typically at the main electrical panel or the service entrance. This is the location where the main electrical service is connected to the building's wiring, and where voltage surges can potentially enter the building's electrical system.

Surge protectors are designed to intercept voltage spikes and surges before they can reach sensitive electronic equipment, such as computers, televisions, and other appliances, and can help prevent damage to these devices.

In addition, where surge protection devices are installed at the origin of the installation, it may also be beneficial to install surge protection device downstream at equipment level.  Especially if this equipment is some distance from the origin and vulnerable or essential equipment. 

If an intumescent strip is used for fire sealing, they must not be used inside of our boards. Taken from instructions. Tests on Hager consumer units have indicated that there is no specific need for external fire rated cable glands or intumescent sealing in addition to the guidance below, with respect to achieving a non-combustible enclosure. However, this does not preclude the designer/installer from using fire rated cable glands or external intumescent sealing should they consider necessary. To conclude, internal intumescent pads shall not be used.

We have multiple Design ranges to offer flexibility to the installer. The Design 10 board is suitable for all applications. As with all models in the range, there is ample cable space available even when RCBOs are fitted. The top mounted terminal rail makes the wiring of the neutral and earth connections neat and simple. Multiple fixing points, and a full metal DIN rail ensure the devices sit square.

Design 30 is our enhanced consumer unit, created to be more aesthetically pleasing whilst including extra features to ease installation. Design 30 comes with a cable clamp installed and rear cable entry plate supplied, which allows for incoming meter tails to be safely secured.

Yes, we offer type 1+2 surge protection devices :

- Type 1 surge protection devices (SPDs) are designed to protect against the highest level of surges, typically caused by direct lightning strikes to the building or incoming power lines. They are installed at the main electrical service entrance and are also known as "primary protection devices." These SPDs have a high discharge capacity and can handle surges up to 50 kA or higher.

- Type 2 surge protection devices, also known as "secondary protection devices," are installed downstream from the Type 1 SPDs and protect against the smaller surges that may pass through the Type 1 SPDs. They are typically installed at the distribution board or sub-distribution board level and have a lower discharge capacity than Type 1 SPDs, typically ranging from 10 to 40 kA.

- Type 1+2 surge protection devices combine the features of Type 1 and Type 2 SPDs in a single device, providing comprehensive protection against surges caused by lightning strikes and other sources. These devices are designed to be installed at the main electrical service entrance and at critical sub-distribution boards, offering maximum protection for the entire installation.

This is posisble, only if the consumer unit is tested and meets the current Wiring regulation requirments.

Hager consumer units have a range of features that make them a popular choice for electrical installations. Some of the features of Hager consumer units include:

- Compliant with latest safety standards: Hager consumer units are designed to meet the latest electrical safety standards, such as the 18th Edition Wiring Regulations.

- Multiple protection devices: Hager consumer units can be equipped with a range of protection devices, such as circuit breakers, residual current devices (RCDs), and surge protection devices, to provide comprehensive protection for the electrical installation and the building occupants.

- Easy to install: Hager consumer units are designed for easy installation, with clear and simple wiring arrangements, pre-installed cable clamps, and cable entry points that allow for fast and efficient installation. (instruction manuals avalaible on product pages)

- Aesthetically pleasing: Hager consumer units are available in a range of finishes, including white, metal, and chrome, to blend in with the decor of the building.

- Expandable: Hager consumer units are designed to be expandable, allowing you to add more electrical circuits to the installation as needed.

- High quality materials: Hager consumer units are made from high-quality materials, such as metal enclosures and high-impact thermoplastics, to provide long-lasting performance and durability.


In summary, Hager consumer units offer a range of features that make them a popular choice for electrical installations. They are designed for safety, ease of installation, versatility, and long-lasting performance.

Hager consumer units can be purchased through various wholesalers across the UK.