10kA RCBOs – Type A High Breaking Capacity
Our 10kA Type A RCBOs combine overload, short circuit, and earth leakage protection with a 10kA breaking capacity – making them ideal for commercial and industrial installs where fault levels are higher than in standard domestic setups. Fully compliant with 18th Edition Amendment 2, these RCBOs cover the full 6A–50A range in both B and C curves.
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Built as Type A devices, they reliably detect AC and pulsating DC residual currents. Their 10kA breaking capacity ensures safe disconnection in higher fault current environments such as three-phase distribution boards, EV charging systems, and heat pumps.
- 10kA breaking capacity – for commercial & industrial boards
- Type A protection – detects AC & pulsating DC leakage
- 6A–50A range – covers most final circuit requirements
- B & C curve options – for domestic and higher inrush loads
- 18th Edition compliant – required for EV, solar & inverter installs
All RCBOs are UK stocked for next-day delivery and backed by a 2-year manufacturer warranty. See our returns policy for full details.
Type A RCBO – 25A B Curve, 30mA
£12.50
The WRT125B-030 is a 25A B Curve Type A RCBO combining residual current and overcurrent protection in one slim device. It features switched live and neutral disconnection for safe isolation, high immunity electronics to reduce nuisance trips, and bi-directional wiring suitable for solar PV, EV...
High Immunity Type A 4 Pole RCBO – ADR440C
£37.14
The ADR440C High Immunity Type A 4 Pole RCBO is a 40A protective device designed for three-phase circuits where both AC and smooth DC leakage currents may occur. With 30mA residual current protection, 6mA DC detection, and a 10kA short-circuit rating, it delivers reliable protection...
Type A RCBO – 6A B Curve, 30mA
£12.50
The WRT106B-030 is a 6A B Curve Type A RCBO providing combined residual current and overcurrent protection in one compact device. It features switched live and neutral disconnection for full isolation, bi-directional operation for solar PV and inverter-fed circuits, and a high immunity design to...
Choosing the Right 10kA RCBO
A 10kA RCBO is the right choice when installing in environments where prospective short-circuit currents are higher than 6kA. They’re commonly required in commercial distribution boards, industrial systems, and large-scale EV/heat pump installs.
Key Considerations
- Breaking capacity – 10kA vs 6kA, depending on board rating and fault level.
- Curve type – B curve for standard domestic circuits, C curve for higher inrush loads.
- Current rating – available from 6A through to 50A.
- Compliance – all units meet BS EN 61009 and 18th Edition regs.
Featured 10kA RCBOs
- Type A RCBO – 10kA WRT Range – 6–50A, B & C curves, bi-directional for EV & solar.
- High Immunity 10kA RCBOs – resists nuisance trips in EV and renewable installs.
- Arc Fault Detection 10kA RCBO – combines AFDD, RCBO, and 10kA capacity.
Trust & Compliance
All 10kA RCBOs are BS EN certified and manufactured for high fault-level installs. With next-day delivery and 2-year warranty, you can specify them confidently for demanding jobs.
FAQs
When do I need a 10kA RCBO?
Use a 10kA device when installing into boards with a fault level above 6kA, typically commercial or three-phase systems.
Are these still Type A devices?
Yes – they combine Type A earth leakage detection with 10kA breaking capacity.
Do I need high immunity?
High immunity versions are recommended for EVs, heat pumps, or inverter-driven systems where background leakage may cause false trips.
Related Categories
Not sure if you need 6kA or 10kA devices? Contact our technical team for guidance before ordering.