High Immunity Type A Mini RCBO – 10A C Curve (WRB110C-030)
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WRB110C-030 High Immunity Type A Mini RCBO is a 10A C Curve device designed for circuits with higher inrush currents. At just 18mm wide, it provides both residual current and overcurrent protection in a compact module. With 30mA Type A sensitivity and a high-immunity design, it ensures stable performance...
The WRB110C-030 High Immunity Type A Mini RCBO is a 10A C Curve device designed for circuits with higher inrush currents. At just 18mm wide, it provides both residual current and overcurrent protection in a compact module. With 30mA Type A sensitivity and a high-immunity design, it ensures stable performance in EV charger circuits, tools, motors, and commercial installs where nuisance tripping must be avoided.
Installer Tip: Use the 10A C Curve when protecting circuits with higher inrush currents – such as EV chargers, pumps, and commercial tools. For standard domestic loads, consider the 10A B Curve version.
Key Features
- 10A rated current – ideal for sockets and appliance loads
- C Curve tripping – designed for circuits with higher inrush currents
- Type A sensitivity – detects AC + pulsating DC leakage
- High immunity design – reduces false trips under harmonics
- Compact 18mm width – perfect for boards with limited space
- Switched live & neutral – ensures complete isolation
- Bi-directional – safe for PV and EV systems
Compare Mini RCBO Variants
| Model | Rated Current | Curve | Type | Width |
|---|---|---|---|---|
| WRB110B-030 | 10A | B Curve | Type A, High Immunity | 18mm |
| WRB110C-030 (This Product) | 10A | C Curve | Type A, High Immunity | 18mm |
Why choose a 10A C Curve RCBO?
C Curve devices are designed to handle higher inrush currents, making them better suited to EV chargers, pumps, and commercial circuits.
What’s the difference between B Curve and C Curve?
B Curve RCBOs trip faster at lower fault currents, while C Curve devices are delayed slightly to tolerate inrush currents from equipment like motors or chargers.
Is the WRB110C-030 compatible with renewable systems?
Yes. With Type A detection and high immunity, it works reliably in PV and EV circuits where DC leakage may be present.
Does this RCBO isolate both conductors?
Yes – it switches both live and neutral, ensuring full circuit isolation under fault conditions.
- Product Code: WRB110C-030
- Rated Current: 10A
- Curve: C Curve
- Breaking Capacity: 6kA
- Poles: 1P + switched neutral
- Trip Sensitivity: 30mA
- Earth Leakage Detection: Type A (AC + pulsating DC)
- Module Width: 18mm
- Dimensions: 18 × 90 × 77 mm
- Standards: BS EN 61009-1
The WRB110C-030 is designed for DIN rail consumer units and boards where higher inrush loads are present. Installation and testing must be carried out by a qualified electrician.
- Best suited for EV chargers, pumps, and commercial tools
- C curve tripping – tolerates higher inrush currents than B curve
- Compact 18mm design – maximises usable ways in the board
- Switched neutral – simplifies testing and isolation
- Meets 18th Edition compliance for inverter-driven systems
