Live Electrical MMGU40B-SP EV Consumer Unit with RCBO, SPD and Busbar
Live Electrical MMGU40B-SP EV Consumer Unit
The Live Electrical MMGU40B-SP EV Consumer Unit is designed for dedicated electric vehicle charger installations in domestic and commercial settings. It includes a 2 pole 40A B Curve Type A RCBO, built-in surge protection device and factory-fitted internal busbar, providing a compact solution for EV charger circuit protection.
This EV consumer unit is suitable for installations where a 40A B Curve RCBO and SPD are required, subject to the charger specification, circuit design and installation requirements. The compact enclosure and pre-fitted components help support a neat and practical installation.
Live Electrical products are designed and quality controlled by the brand’s UK-based team, with manufacturing carried out under supplier-controlled processes. Correct selection, installation and testing should always be completed by a qualified electrician.
Key Features
- Live Electrical MMGU40B-SP EV consumer unit
- 2 pole 40A B Curve Type A RCBO included
- Built-in 20/40kA 1P+N surge protection device
- 4 way configuration
- Pre-fitted internal busbar
- Compact dimensions: 125mm x 183mm x 110mm
- Durable drop-down metal cover
- Circular knockouts on top and bottom
- Raised keyholes for mounting
- White powder-coated finish, RAL9010
Why Choose the Live Electrical MMGU40B-SP?
- Designed for dedicated EV charger circuit protection.
- Includes RCBO, SPD and internal busbar in one compact enclosure.
- 40A B Curve Type A RCBO suitable where specified by the installation design.
- Built-in surge protection helps protect the EV charging circuit from transient overvoltages.
- Compact layout supports a tidy installation for domestic and commercial EV charging projects.
B Curve or C Curve EV Protection?
Not sure whether a B Curve RCBO is suitable for your charger installation? Read our guide: B Curve vs C Curve | 32A vs 40A Explained.
If you need an outdoor-rated option, see the Live Electrical LEV440SP-BP IP65 EV consumer unit with 40A B Curve RCBO and SPD.
Typical Applications
- Domestic EV charger installations
- Commercial EV charging setups
- Dedicated 40A EV charger circuits
- Installations requiring RCBO and surge protection in one enclosure
- Electric car charger consumer unit applications
Related EV Charging Products
If you are also choosing the charger itself, view our Ohme charger range, including Ohme Home Pro and Ohme ePod smart EV chargers. For wider board options, browse our main consumer units category.
You may also need suitable EV cables, EV cable clips and EV circuit protection, depending on the installation design.
FAQs
Is the Live Electrical MMGU40B-SP suitable for EV charger installations?
Yes, the Live Electrical MMGU40B-SP is designed for dedicated EV charger circuit protection where a 40A B Curve Type A RCBO and surge protection are suitable for the installation design.
Does this EV consumer unit include an SPD?
Yes. The unit includes a built-in 20/40kA 1P+N surge protection device.
Does this unit include a busbar?
Yes. The Live Electrical MMGU40B-SP is supplied with a factory-fitted internal busbar.
Is this an outdoor EV consumer unit?
This product is not the IP65 outdoor version. If you need an outdoor-rated Live Electrical EV consumer unit, see the Live Electrical LEV440SP-BP IP65 EV consumer unit.
Who should install this EV consumer unit?
This EV consumer unit should be selected, installed and tested by a qualified electrician in accordance with current UK wiring regulations, the charger manufacturer’s instructions and the requirements of the property.
Installation Notes
The Live Electrical MMGU40B-SP EV Consumer Unit should be selected as part of the overall EV charger installation design. The installer should confirm the correct RCBO rating, tripping curve, cable size, earthing arrangement, surge protection requirements and enclosure suitability before installation.





