WCED WRB110C-030 Bi-Directional RCBO
The WCED WRB110C-030 Bi-Directional RCBO is a 10A C Curve circuit protection device from the Whitecliffe Electrical WRB1 range. Combining overload, short-circuit and Type A residual current protection within a single module, it offers 30mA residual operating sensitivity and a 6kA rated breaking capacity for suitably designed domestic and commercial electrical installations.
Its bi-directional design makes the WRB110C-030 a suitable option to consider for solar photovoltaic applications where power flow may change direction. The device also includes switched live and neutral, helping electricians isolate individual circuits within compatible consumer units and distribution boards.
Key Features
- 10A rated current with C Curve tripping characteristic
- Type A high-immunity residual current protection
- 30mA residual operating sensitivity
- 6kA short-circuit breaking capacity
- Bi-directional capability for suitable solar PV circuits
- 1P+N arrangement with switched live and neutral
- Compact single-module construction, approximately 18mm wide
- Electronic RCBO with thermal-magnetic release characteristic
- Bi-connect terminals for compatible cable and busbar connections
- Contact position indicator
- 35mm DIN rail mounting
- IEC 61009-1 and EN 61009-1 standards
10A C Curve Circuit Protection
With a 10A rated current and C Curve characteristic, this RCBO is intended for circuits where the selected overcurrent rating and tripping curve are appropriate. C Curve protective devices are commonly considered where moderate inrush currents are expected, subject to the required earth fault loop impedance and disconnection times.
By providing residual current and overcurrent protection within one device, the WRB110C-030 helps protect individual circuits without relying on a shared upstream RCD for their normal residual current protection.
Bi-Directional Operation for Solar PV Installations
The WCED WRB110C-030 Bi-Directional RCBO forms part of the manufacturer’s WRB1 range, developed for applications involving bi-directional power flow, including appropriately designed photovoltaic circuits.
For solar installations, correct selection must consider the inverter characteristics, expected load current, prospective fault current and applicable protective requirements.
Although the device is described as bi-directional, installers must follow the manufacturer’s terminal markings and wiring instructions. The WCED datasheet specifies connection from the bottom.
Type A High-Immunity Residual Current Protection
The WRB110C-030 detects sinusoidal AC and pulsating DC residual fault currents, providing Type A protection for modern electrical installations containing suitable electronic equipment.
Its 30mA residual operating sensitivity provides additional protection against electric shock when correctly installed. The high-immunity classification is part of the WRB1 product range and supports its use where dependable circuit protection is required.
Switched Live and Neutral
The 1P+N configuration incorporates switched live and neutral conductors, allowing both to be disconnected when the RCBO operates.
This arrangement supports individual circuit isolation and can simplify certain insulation resistance testing procedures, subject to the test method and connected equipment.
Compact Single-Module Design and Bi-Connect Terminals
The WCED WRB110C-030 Bi-Directional RCBO occupies approximately 18mm of DIN rail space, making it suitable for installation in compatible consumer units and distribution boards.
The bi-connect terminal design supports compatible cable, pin-type and fork/U-type busbar connections. Installation is on a standard 35mm DIN rail, with a manufacturer-specified terminal tightening torque of 2.5Nm.
Technical Specifications
- Brand: WCED Whitecliffe Electrical
- Manufacturer Part Number: WRB110C-030
- Product Range: WRB1
- Product Type: Electronic Bi-Directional RCBO
- Rated Current: 10A
- 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 Range: -5°C to +40°C
- Storage Temperature Range: -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 WRB110C-030 forms part of the WCED Whitecliffe circuit protection range. Browse our WCED Consumer Units or explore the complete WCED Whitecliffe range at Electrical4Less.
Always confirm compatibility with the consumer unit, connected equipment and circuit design before installation. Device selection and installation must meet the applicable electrical installation requirements.
