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FuseBox 10kA RCBOs for Three Phase Consumer Units – What You Need to Know is critical for electricians working on larger commercial and industrial installations. While domestic boards usually rely on 6kA devices, three phase systems demand the resilience of 10kA RCBOs to safely handle higher fault currents.
At Electrical4Less Ltd, we stock the full selection of FuseBox 10kA RCBOs, along with FuseBox three phase consumer units, kits, and accessories — giving you everything needed for compliant, professional installations.
Why 10kA RCBOs Are Different
RCBOs (Residual Current Breakers with Overcurrent) protect against both earth leakage and overcurrent, combining RCD and MCB functions in one unit.
The difference between 6kA and 10kA is about fault level handling:
- 6kA RCBOs – Standard for domestic installations.
- 10kA RCBOs – Designed for higher fault currents in commercial or industrial settings.
Choosing 10kA ensures your installation meets fault capacity requirements and BS 7671 compliance.
Where to Use FuseBox 10kA RCBOs
These RCBOs are tailored for:
- Shops and offices with heavier distribution demands.
- Industrial units where fault currents may exceed domestic levels.
- Workshops and garages with three phase machinery.
- Commercial boards where resilience is critical.
Pairing a 10kA RCBO with a FuseBox TPN board gives installers confidence that their installation can withstand higher energy fault scenarios.
FuseBox Three Phase Consumer Units
FuseBox is now one of the UK’s fastest-growing board manufacturers, known for combining affordability with installer-friendly features.
Explore our FuseBox three phase consumer units for your next project.
Key features include:
- Spacious wiring layout.
- Factory-fitted SPD options for 18th Edition compliance.
- Easy-to-use terminal design.
- Robust build quality at an excellent price point.
FuseBox 10kA RCBOs – Key Features
- Breaking capacity: 10kA for commercial-grade resilience.
- Protection type: Type A as standard.
- Curves: Available in B and C options.
- Current ratings: Wide range from 6A upwards.
- Compatibility: Built for FuseBox TPN boards.
These devices are designed to handle the demands of large-scale distribution while maintaining the compact footprint electricians expect from FuseBox.
Benefits of Choosing FuseBox 10kA RCBOs
- Confidence in commercial installations.
- Fully compliant with the latest 18th Edition requirements.
- Easy to install thanks to FuseBox’s consistent design.
- Cost-effective compared with older brands like Hager.
For electricians, this means fewer call-backs, smoother installs, and better margins.
About Electrical4Less Ltd
Based in Fulham, London, we support electricians nationwide with a complete range of FuseBox boards, RCBOs, and accessories. As proud members of the IBA Buying Group and the EDA Electrical Distributors’ Association, we combine competitive pricing with reliable stock and next-day delivery.
FAQs – FuseBox 10kA RCBOs – What You Need to Know
Q: When should I use a 10kA RCBO instead of a 6kA?
A: Use 10kA devices in three phase or high-demand installations where higher fault levels are expected.
Q: Are FuseBox 10kA RCBOs Type A?
A: Yes, they all provide Type A protection.
Q: What curves are available?
A: Both Curve B and Curve C, depending on your application.
Q: Can FuseBox 10kA RCBOs be mixed with other protection devices in the same board?
Yes — you can use 10kA RCBOs alongside MCBs, SPDs, and other devices inside a FuseBox three phase consumer unit, provided fault capacity is calculated correctly.
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FuseBox 10kA RCBOs for Three Phase Consumer Units – What You Need to Know