Type A RCBO – 25A C Curve, 30mA
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
Secure Payments With
The WRT125C-030 is a 25A C Curve Type A RCBO that delivers overcurrent and 30mA residual current protection in a single compact device. With switched live and neutral disconnection for full circuit isolation, bi-directional wiring for solar PV and inverter-fed setups, and high immunity electronics to resist nuisance trips, it’s...
The WRT125C-030 is a 25A C Curve Type A RCBO that delivers overcurrent and 30mA residual current protection in a single compact device. With switched live and neutral disconnection for full circuit isolation, bi-directional wiring for solar PV and inverter-fed setups, and high immunity electronics to resist nuisance trips, it’s ideal for EV chargers, motors, heat pumps, and commercial applications.
Tested to IEC/EN 61009-1 and compliant with the 18th Edition Wiring Regulations (Amendment 2), this 25A RCBO offers reliable performance for modern electrical systems.
Installer Tip: Use the C Curve for circuits with high inrush loads such as EV chargers, motors, or heat pumps. For lower inrush demand (lighting, sockets), the B Curve version is more suitable.
Key Features
- 25A C Curve Type A RCBO – overload + residual current protection
- Switched live & neutral – ensures both poles are isolated
- High immunity design – resists nuisance tripping from harmonics
- Bi-directional wiring – solar PV and inverter-ready
- Compact 18mm module – standard DIN rail fit
- 10kA breaking capacity – reliable for domestic & commercial installs
- Conforms to IEC/EN 61009-1
Compare WRT Range
| Model | Rating | Curve | Application |
|---|---|---|---|
| WRT120C-030 | 20A | C Curve | Motors / EV / Inrush Loads |
| WRT125C-030 (This Product) | 25A | C Curve | EV / Heat Pumps / Commercial Circuits |
| WRT132C-030 | 32A | C Curve | General Loads / Inverter Systems |
| WRT125B-030 | 25A | B Curve | Higher Load Domestic Circuits |
When should I install a 25A C Curve RCBO?
Use this model on 25A circuits with higher inrush demand, such as EV chargers, motors, and heat pumps.
What makes Type A better than AC?
Type A RCBOs detect pulsating DC leakage as well as AC, which is necessary for EV, solar, and modern electronic systems.
Does it fully disconnect the circuit?
Yes – switched live and neutral provide safe, complete isolation of both conductors.
Why high immunity?
It reduces false trips caused by harmonics and switching surges, common in inverter-fed setups.
- Type: A (detects AC + pulsating DC leakage)
- Rating: 25A
- Trip Curve: C
- Sensitivity: 30mA
- Breaking Capacity: 10kA
- Poles: 1P+N (switched live & neutral)
- Voltage: 230V AC
- Impulse Withstand: 4kV
- Electrical Life: 2,000 operations
- Mechanical Life: 10,000 operations
- Protection Degree: IP20
- Terminal Capacity: Top 10mm² / Bottom 16mm²
- Dimensions: W17.8 × H116 × D76mm
- SKU: WRT125C-030
- Standards: IEC/EN 61009-1
Compact RCBO for 25A rated circuits requiring robust fault protection. Ideal for EV, heat pumps, and inverter-fed setups where higher inrush currents are present.
- Single module – 18mm DIN rail mount
- Check rating matches circuit design
- Bi-directional wiring for flexible install
- Install only by a qualified electrician
