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The WRB140C-030 High Immunity Type A Mini RCBO is a 40A C Curve protective device designed for circuits with motors, pumps, and equipment that draw higher inrush currents. At just 18mm wide, it combines overload, short-circuit, and residual current protection in one compact unit. With 30mA Type A sensitivity and high immunity, it provides stable fault protection for EV chargers, renewable systems, and heavier appliance circuits where nuisance tripping must be avoided.
Installer Tip: Choose the 40A C Curve when circuits include EV chargers, motors, or commercial tools with high start-up currents. For general higher-load circuits without heavy inrush, see the 40A B Curve variant.
Key Features
- 40A rated current – protects higher-load socket and appliance circuits
- C Curve tripping – tolerates inrush from motors, pumps, and EV chargers
- Type A sensitivity – detects AC + pulsating DC leakage
- High immunity design – prevents nuisance tripping under harmonics
- 18mm compact module – saves space in consumer units
- Switched live & neutral – ensures safe full isolation
- Bi-directional – compatible with PV and EV systems
Compare Mini RCBO Variants
| Model | Rated Current | Curve | Type | Width |
|---|---|---|---|---|
| WRB140B-030 | 40A | B Curve | Type A, High Immunity | 18mm |
| WRB140C-030 (This Product) | 40A | C Curve | Type A, High Immunity | 18mm |
