High Immunity RCBOs for EV, Solar & Disruption-Prone Circuits
High Immunity RCBOs are designed to prevent false tripping caused by harmonics, surges, or DC leakage – issues common in EV chargers, solar PV systems, UPS/three-phase setups, and noisy commercial circuits.
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These advanced Type A RCBOs provide full overload and earth leakage protection while filtering out interference that would cause nuisance trips in standard devices. Many models include switched neutrals, twin-action handles, and bi-directional operation for safer, easier installation.
- High immunity design – resists unwanted trips from electrical noise
- Type A protection – detects AC and pulsed DC leakage
- Single, 2-pole & 4-pole options – suited to domestic and commercial boards
- 18th Edition Amendment 2 compliant – trusted for modern installs
Need surge suppression alongside high immunity? Explore our Surge Protection Devices. For shipping details, see our delivery information or returns policy.
A Type IP65 Metal Consumer Unit EV Protection RCBO with Surge Protection
£56.90
The WMIP IP65 Metal Consumer Unit is a durable, weather-resistant enclosure pre-configured with an A-Type RCBO and Type 2 Surge Protection Device (SPD). Designed specifically for EV charger installs, this unit meets 18th Edition Amendment 2 standards — offering both overcurrent and earth leakage protection,...
8 WAY IP65 Plastic Enclosure with Type A RCBO and Surge protection
£52.66
The 8 Way IP65 Plastic Enclosure with Type A RCBO and Surge Protection is a weatherproof distribution unit designed for EV chargers and outdoor circuits. It provides combined overload, short-circuit, and earth leakage protection via a high-performance RCBO with smooth DC detection up to 6mA....
A Type RCBO EV Kit with RCBO Of Your Choice - 3 Way
£27.50
The 3 Way EV RCBO Enclosure is a compact, built-to-order unit that provides both earth leakage and overload protection for single-phase EV charger installs. Supplied with your choice of Type A High Immunity RCBO (B or C curve, 32A or 40A), it’s only 34mm wider...
IP65 Weatherproof A-Type RCBO EV Kit
£32.05
The IP65 A-Type RCBO EV Kit is a pre-assembled, weatherproof solution for supplying EV charge points and outdoor power circuits. Each unit is housed in an IP65-rated enclosure and fitted with a high-immunity A-Type RCBO, providing protection against both 30mA AC leakage and 6mA DC...
A Type Mini RCBO & Single Module 6A-40A C Curve 30mA High Immunity
£11.67
The WRB1 Range Type A Mini RCBO is a compact, high-immunity breaker that combines residual current and overload protection in a single 18mm module. Designed for both domestic and commercial installs, it detects AC and pulsating DC leakage, making it compliant with 18th Edition requirements...
Why Choose High Immunity RCBOs?
Standard RCBOs can trip unnecessarily in environments with high electrical noise – wasting time on callouts and frustrating clients. High Immunity RCBOs are built to avoid this problem, maintaining reliable protection without nuisance disconnections.
Applications
- EV chargers – prevents false tripping from inverter harmonics. A proven option is the A-Type RCBO EV Kit (40A B-Curve).
- Solar PV systems – avoids disruption from DC leakage or backfeed. Many installers use the Single Module High Immunity A-Type RCBO.
- Battery storage & UPS – stable protection for sensitive systems.
- Commercial & industrial boards – reliable operation in noisy electrical environments. For larger setups, see the High Immunity 4-Pole A-Type RCBO.
Key Features
- Resists nuisance tripping – filters out harmonics and DC bleed
- Type A detection – protects against AC and pulsed DC faults
- Bi-directional operation – can be installed either way up
- Switched neutral options – safer isolation and clearer fault indication
FAQs on High Immunity RCBOs
What causes nuisance tripping?
Inverter-driven equipment like EV chargers and solar systems can create harmonics or DC leakage that cause standard RCBOs to trip unnecessarily. High Immunity RCBOs are designed to filter this out.
Are High Immunity RCBOs mandatory?
They are not mandatory under the 18th Edition, but are strongly recommended for circuits with renewables, EVs, or UPS systems where false trips are common.
Do High Immunity RCBOs still meet regulations?
Yes – they fully comply with BS EN 61009 and 18th Edition Amendment 2 wiring regulations.
Why Buy From Power & Data UK?
We stock UK-certified High Immunity RCBOs, available with next-day delivery and backed by a 2-year manufacturer warranty. If you need to return an item, see our returns policy. All products are tested and labelled for fast, reliable installation.