Live Electrical MMGU40C-SP EV Consumer Unit with RCBO SPD & Busbar – 2P 40A C Curve Type A

Description

EV Consumer Unit with RCBO, SPD & Busbar – 2P 40A C Curve Type A

Live Electrical MMGU40C-SP EV Consumer Unit

The Live Electrical MMGU40C-SP is a high-performance EV consumer unit designed for safe, efficient, and regulation-compliant EV charger installations. It features a 2P 40A C Curve Type A EV-Optimised RCBO, built-in SPD, and a pre-installed internal busbar, making it the complete solution for electric vehicle charging protection.

Manufactured under the supervision of Live Electrical’s UK-based design team in Manchester, the unit is rigorously tested to comply with the latest BS 7671 wiring regulations.

⚠️ Important: All details provided here are a guide only. Always consult BS 7671, follow manufacturer installation guidance, and ensure that all electrical work is carried out by a qualified electrician.

Key Features of the Live Electrical MMGU40C-SP EV Consumer Unit

• 40A C Curve Type A EV-Optimised RCBO – Engineered to manage high inrush currents from EV chargers, reducing nuisance tripping while ensuring protection.
• Integrated 20/40kA SPD (1P+N) – Protects your installation from transient overvoltages and electrical surges.
• 4-Way Configuration – Offers connection flexibility and future expansion potential.
• Internal Busbar Included – Pre-installed for safe, consistent, and professional internal wiring.
• Fully Enclosed Metal Housing – RAL9010 white powder-coated finish for durability and a clean, modern look.
• Drop-Down Cover with Lockable Lid – Enhances safety while maintaining easy access.
• Top & Bottom Knockouts – Allow for straightforward cable entry from either direction.
• Compact Dimensions – 125 x 183 x 110 mm, ideal for space-saving installs.
• Raised Keyholes for Wall Mounting – Ensures secure and efficient installation.

⚙️ What Makes the EV-Optimised RCBO Special?

The included EV-Optimised RCBO (40A, C Curve, Type A) is tailored for EV chargers that draw high inrush currents. Its C Curve trip profile (5–10x rated current) allows brief startup surges without causing false tripping—ensuring your charger operates reliably and safely.

Even so, compliance with Zs (earth fault loop impedance) requirements must be verified during installation. Typically, in setups close to the main intake, Zs values are well within limits for C Curve use.

📘 Note: This is a guideline only. Always refer to BS 7671 and consult a qualified electrician for all installation and testing procedures.

🏠 Best Suited For

• Residential EV Charger Installations
• Commercial or Office EV Points
• High-Load EV Chargers with Startup Inrush
• Installers Requiring Trusted, Professional-Grade Gear

✅ Why Choose MMGU40C-SP?

• C Curve RCBO resists unnecessary tripping during EV charging
• Integrated surge protection for long-term safety
• Comes with busbar for safer, neater internal wiring
• Developed by Live Electrical’s UK design team and manufactured under direct supervision
• Fully tested for compliance with the latest BS 7671 standards

⚠️ Reminder: All information provided is a general guide only. Always consult the official standards and work with a qualified electrician.

❓Is C Curve Right for You❓ Compare Breaker Types & Explore the IP65 40A Option

Not sure what a C Curve RCBO is? Read our guide B Curve vs. C Curve | 32A vs. 40A Explained to learn when to use it and why it’s ideal for EV chargers.
Need a weatherproof unit? Choose the Live Electrical LEV440SP-P. It’s IP65-rated and includes the same 40A C Curve EV-Optimised RCBO and SPD.

❓ FAQs

• Q: Is a C Curve RCBO suitable for all EV chargers?
  A: Yes, especially for chargers that cause higher inrush currents. Still, always test the Zs values to ensure compliance with BS 7671.
• Q: Can I use 6mm² cable with this unit?
  A: In most cases, yes—if the cable is clipped direct and free from insulation, 6mm² supports up to 47A. However, always verify your install against BS 7671 tables and consult a qualified electrician.
• Q: Where is this product made?
  A: It is manufactured in China under the direct supervision of Live Electrical’s design and quality team in Manchester, UK.
• Q: Is it compliant with UK wiring standards?
  A: Yes. Each unit is tested to comply with the latest version of BS 7671.

Summary of the Live Electrical MMGU40C-SP EV Consumer Unit

The Live Electrical MMGU40C-SP is a top-tier 4-way EV consumer unit designed with a 40A C Curve EV-Optimised RCBO, built-in surge protection, and a pre-installed internal busbar. It ensures safe, efficient, and regulation-compliant installation of electric car chargers. Manufactured under the guidance of a UK-based engineering team and tested to BS 7671 standards, this unit is ideal for both residential and commercial EV setups.

All electrical work must be performed by a qualified electrician.