Product Overview

The LIVE Electrical RKB120C-030 Type B RCBO is a compact, single-module residual current breaker with overcurrent protection, designed to deliver reliable safety in modern electrical installations. It provides comprehensive protection against overload currents, short circuits and earth leakage faults, while supporting advanced applications that produce complex electrical waveforms.

This Type B RCBO is capable of detecting AC, pulsating DC and smooth DC residual currents, making it suitable for circuits where standard protection devices may not provide sufficient coverage. Its bi-directional power capability ensures safe operation in renewable energy and power conversion systems.

Featuring a C-curve tripping characteristic, this RCBO is ideal for circuits with higher inrush currents such as EV charging points, solar PV inverters, heat pumps and other inductive loads. Rated at 20A with a 30mA residual current sensitivity and a 6kA breaking capacity, it offers dependable and compliant circuit protection.

Key Features & Benefits

• Type B RCBO for detection of AC, pulsating DC and smooth DC residual currents
• C-curve tripping suitable for higher inrush current applications
• Compact single-module design to maximise space within consumer units
• Bi-directional supply capability
• Combined protection against overload, short circuit and earth leakage
• 30mA sensitivity for enhanced personal and equipment protection
• Ideal for EV chargers, solar PV systems, heat pumps and inductive loads

Technical Specification

• Poles: 1P+N
• Rated Current (In): 20A
• Tripping Curve: C
• Rated Frequency: 50/60Hz
• Rated Operating Voltage: 230/240V~
• Insulation Voltage (Ui): 500V
• Impulse Withstand Voltage (Uimp): 4kV (1.2/50µs)
• Residual Current Sensitivity: 30mA
• Breaking Capacity: 6kA
• Device Type: Type B
• Maximum Terminal Cable Size: 16mm²
• Terminal Torque: 2.0Nm
• Ingress Protection: IP20
• Direction of Supply: Bi-Directional
• Standards: IEC/EN 61009-1, IEC/EN 62423

Downloads

Data Sheet:
Click here to download the RKB Type B single-module RCBO data sheet

LIVE Electrical Catalogue:
Click here to view the LIVE Electrical catalogue