WCED WRB106C-030 Bi-Directional RCBO
The WCED WRB106C-030 Bi-Directional RCBO is a 6A C Curve Type A high-immunity protective device from the Whitecliffe Electrical WRB1 range. Combining overload, short-circuit and 30mA residual current protection in a single-module design, it provides a compact solution for suitably rated circuits in domestic and commercial electrical installations.
With a 6kA breaking capacity, switched live and neutral, and bi-directional capability, this RCBO offers flexible circuit protection for compatible consumer units and distribution equipment. Its 6A current rating makes it an option for lower-current circuits where the C Curve characteristic is appropriate.
Key Features
- 6A rated current with C Curve tripping characteristic
- Type A high-immunity residual current protection
- 30mA rated residual operating current
- 6kA short-circuit breaking capacity
- Bi-directional design for suitable solar PV applications
- 1P+N arrangement with switched live and neutral
- Single-module housing, approximately 18mm wide
- Electronic residual current detection and thermal-magnetic overcurrent release
- Bi-connect terminals for compatible cable and busbar connections
- Contact position indicator
- 35mm DIN rail mounting
- IEC 61009-1 and EN 61009-1 standards
6A C Curve Circuit Protection
The WRB106C-030 provides 6A overcurrent protection with a C Curve tripping characteristic. This characteristic may be selected for suitably designed lower-current circuits where equipment produces moderate inrush currents.
Typical applications may include selected control circuits, auxiliary supplies and other appropriately rated installations. Final selection must consider conductor capacity, prospective fault current, earth fault loop impedance and required disconnection times.
Bi-Directional Operation for Solar PV Circuits
The WCED WRB106C-030 Bi-Directional RCBO belongs to the WRB1 range, which the manufacturer identifies as suitable for bi-directional operation.
This feature allows the device to be considered in suitably designed solar photovoltaic circuits where power flow may occur in either direction. Correct selection depends on the characteristics of the connected equipment and the protective requirements of the installation.
The manufacturer’s wiring instructions and terminal markings must always be followed. The WRB1 datasheet specifies connection from the bottom.
Type A High-Immunity Residual Current Protection
Type A residual current detection enables the RCBO to respond to sinusoidal AC and pulsating DC residual fault currents. This provides broader residual current detection than a traditional Type AC device and supports compatibility with suitable modern electrical equipment.
The 30mA residual operating sensitivity provides additional protection against electric shock when correctly installed. The high-immunity classification is specified by WCED for its WRB1 range.
Switched Live and Neutral
The WRB106C-030 incorporates switched live and neutral conductors within its 1P+N construction. When the device operates, both conductors are disconnected, helping electricians isolate individual circuits for inspection and maintenance.
This arrangement may also simplify certain insulation resistance testing procedures, subject to the testing method and equipment connected to the circuit.
Compact Construction and Bi-Connect Terminals
With a single-module width of approximately 18mm, the RCBO fits into compatible consumer units and distribution boards without occupying unnecessary DIN rail space.
Bi-connect terminals support compatible cable, pin-type and fork/U-type busbar connections. The manufacturer’s installation specifications include a 2.5Nm terminal tightening torque and standard 35mm DIN rail mounting.
Technical Specifications
- Brand: WCED Whitecliffe Electrical
- Manufacturer Part Number: WRB106C-030
- Product Range: WRB1
- Product Type: Electronic Bi-Directional RCBO
- Rated Current: 6A
- Tripping Characteristic: C Curve
- Residual Current Classification: Type A High Immunity
- Rated Residual Operating Current: 30mA
- Rated Breaking Capacity: 6kA
- Number of Poles: 1P+N (Switched Live and Neutral)
- Rated Operational Voltage: 230V AC
- Rated Frequency: 50/60Hz
- Rated Insulation Voltage: 500V
- Rated Residual Making and Breaking Capacity: 3000A
- Rated Impulse Withstand Voltage: 4kV
- Residual Current Break Time at IΔn: ≤0.1 seconds
- Dielectric Test Voltage: 2kV for 1 minute
- Electrical Endurance: 2,000 operations
- Mechanical Endurance: 10,000 operations
- Contact Position Indicator: Yes
- Degree of Protection: IP20
- Operating Temperature: -5°C to +40°C
- Storage Temperature: -25°C to +70°C
- Reference Temperature: 30°C
- Top Cable Terminal Capacity: 10mm²
- Bottom Cable Terminal Capacity: 16mm²
- Busbar Terminal Capacity: 10mm²
- Terminal Tightening Torque: 2.5Nm
- Mounting: DIN Rail EN 60715 (35mm)
- Manufacturer-Specified Connection: From Bottom
- Applicable Standards: IEC 61009-1 / EN 61009-1
WCED Whitecliffe Consumer Units and Circuit Protection
The WCED WRB106C-030 Bi-Directional RCBO is part of the Whitecliffe Electrical WRB1 protective device range. Discover our WCED Consumer Units or browse the complete WCED Whitecliffe range at Electrical4Less.
Before installation, verify compatibility with the consumer unit, supply arrangement, connected equipment and circuit design. All protective device selection and installation work must comply with applicable electrical installation requirements.

