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Metal Consumer Units for Domestic, Commercial & EV Installations

Metal consumer units are the standard choice for many modern installations, giving electricians a durable steel enclosure, tidy circuit layout, and a practical board format for rewires, upgrades, new builds, and specialist supplies. This range includes boards for domestic, commercial, and EV-related installs, with options covering both traditional twin RCD layouts and more specialist protection arrangements.

Whether you're replacing an older board, specifying a new metal unit for a house rewire, or looking for a board with integrated protection features, this collection is built around trade-ready, install-focused options.

Quick answer: A metal consumer unit is a steel-enclosed distribution board used to house circuit protection devices such as MCBs, RCDs, and RCBOs. They are widely used for domestic and commercial installs where a more robust enclosure and modern board layout are required.

This range includes twin RCD metal consumer units for standard circuit grouping, along with specialist options such as boards designed around PME fault detection for relevant EV and outdoor supply applications. Multiple way counts are available, making it easier to match the board size to the property, load profile, and future circuit requirements.

  • Steel consumer unit enclosures – durable board format for modern installs
  • Twin RCD layouts – common for domestic circuit grouping
  • PME fault detection options – for EV and other relevant applications
  • Multiple way counts – from smaller domestic boards to larger layouts
  • Suitable for upgrades and new installs – including rewires, extensions, and specialist circuits

Need a broader board range? Browse our main consumer units, garage consumer units, or EV consumer units & kits. For delivery and returns, see our delivery information and returns policy.

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Choosing a Metal Consumer Unit

Select the board from the installation design, circuit schedule and required protection architecture. Way count, incomer rating, RCD or RCBO arrangement, surge protection, device compatibility and future capacity should all be established before choosing the enclosure.

Twin-RCD Boards

Group circuits across two residual-current devices. Check the circuit allocation, load distribution and consequences of one RCD disconnecting several circuits.

View Twin-RCD Boards →

SPD-Equipped Boards

Integrated surge protection can provide a tidy assembly where an SPD is required or specified. Verify the complete board configuration and replacement module details.

View Surge Protection →

RCBO Alternatives

Individual RCBOs can reduce the number of circuits affected by a residual-current fault and may suit installations needing clearer circuit separation.

Shop RCBOs →

Specification Checklist

  • Way count: allow for the present circuit schedule and appropriate spare capacity
  • Protection layout: choose twin-RCD, all-RCBO or another arrangement from the design
  • Incomer and rating: coordinate main switch, busbar and upstream supply ratings
  • Surge protection: confirm whether an SPD is required and whether it is integrated or external
  • Compatibility: use protective devices and accessories suitable for the board system

Selection Guides

Related Categories

Consumer UnitsRCBOsSurge ProtectionGarage UnitsMetering & Isolation

Trade support: UK-stocked products, manufacturer-backed specifications and fast dispatch. Check each product page for ratings, standards, stock status and delivery details before ordering.