A-Type RCBO - WRT Range
The WRT Range A-Type RCBO combines residual current protection with overcurrent protection in a single, compact device. Designed for domestic, commercial, and renewable energy installations, it detects and responds to both AC faults and pulsating DC components – meeting the demands of modern circuits under the 18th Edition wiring regulations....
The WRT Range A-Type RCBO combines residual current protection with overcurrent protection in a single, compact device. Designed for domestic, commercial, and renewable energy installations, it detects and responds to both AC faults and pulsating DC components – meeting the demands of modern circuits under the 18th Edition wiring regulations.
With a switched live and neutral for full circuit isolation, high immunity performance, and bi-directional capability, it’s an ideal choice for solar installations, EV charger supplies, and other systems requiring robust fault protection. Available from 6A to 50A in B and C curve options.
- A-Type RCD protection – responds to AC and pulsating DC faults
- Combined RCBO functionality – overload + residual current protection in one device
- Switched live and neutral – fully isolates the faulty circuit for safe testing
- High immunity – reduces nuisance tripping in noisy electrical environments
- Bi-directional operation – suitable for solar PV and similar applications
- Compact single-module design – saves space in distribution boards
What’s the benefit of an A-Type RCBO over an AC-Type?
A-Type devices can detect AC faults and pulsating DC leakage currents, which makes them essential for circuits supplying EV chargers, solar inverters, and some appliances with electronic speed controls.
Is this RCBO suitable for solar PV systems?
Yes – its bi-directional operation makes it suitable for circuits where current may flow in either direction, such as solar installations.
Can I use this in a domestic consumer unit?
Yes – it is fully compliant with the 18th Edition for both domestic and commercial boards, provided the rating and curve match the circuit design.
Does it fully isolate the circuit?
Yes – the switched live and neutral design ensures both conductors are disconnected when tripped or switched off.
- Standard: IEC 61009-1, EN 61009-1
- Current ratings: 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A
- Poles: 1P+N (switched live and neutral)
- Rated voltage: 230V AC
- Rated sensitivity: 30mA
- Breaking capacity: 10kA
- Tripping curves: B and C
- Impulse withstand voltage: 4kV
- Operating frequency: 50/60Hz
- Electrical life: 2,000 operations
- Mechanical life: 10,000 operations
- Protection degree: IP20
- Terminal capacity: Top: 10mm²; Bottom: 16mm²
- Mounting: DIN rail EN 60715 (35mm)
- Dimensions (mm): W17.8 x H116 x D76
This RCBO must be installed by a qualified electrician in accordance with BS 7671. Ensure correct curve type and rating are selected for the circuit’s load and application.
- Compatible with standard 18mm DIN rail slots
- Clear terminal markings for quick identification
- Rear and side cable access depending on board design
- Check torque settings when securing conductors
- For solar or EV applications, confirm suitability with the system designer
