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.
8 Way IP65 Enclosure – 40A C Curve Type A RCBO + Surge Protection (WPRC40CSP/8)
£43.35
The WPRC40CSP/8 is an 8 way IP65 plastic enclosure fitted with a 40A C Curve Type A RCBO and integrated Type 2 Surge Protection Device (SPD). Designed for EV charge points, heat pump circuits, and renewable installs, it delivers overload, short-circuit, earth leakage, and surge...
8 Way IP65 Enclosure – 40A B Curve Type A RCBO + Surge Protection (WPRC40BSP/8)
£43.35
The WPRC40BSP/8 is an 8 way IP65 plastic enclosure fitted with a 40A B Curve Type A RCBO and integrated Type 2 Surge Protection Device (SPD). Designed for EV charge points, renewable installs, and outdoor distribution circuits, it provides overload, short-circuit, earth leakage, and surge...
IP65 EV Consumer Unit – 32A C Curve RCBO + SPD
£56.90
The WMIP32CSP is an IP65-rated EV consumer unit pre-fitted with a 32A Type A RCBO (C Curve) and integrated Type 2 SPD. Built for EV charger installations where higher inrush currents are expected, this unit provides compliant overcurrent, earth leakage, and surge protection in a...
IP65 EV Consumer Unit – 40A B Curve RCBO + SPD
£56.90
The WMIP40BSP is a heavy-duty IP65 EV consumer unit fitted with a 40A Type A RCBO (B Curve) and integrated Type 2 SPD. Designed for EV charger installations with higher current demand, it delivers full overcurrent, earth leakage, and surge protection in a lockable metal...
IP65 EV Consumer Unit – 32A B Curve RCBO + SPD
£56.90
The WMIP32BSP is a weatherproof IP65 EV consumer unit pre-fitted with a 32A Type A RCBO (B Curve) and integrated Type 2 Surge Protection Device (SPD). Designed for domestic and commercial EV charger installs, it provides full overcurrent, earth leakage, and surge protection in one...
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.