Product Overview

The LIVE Electrical RKB140C-030 Type B RCBO is a high-capacity, single-module residual current breaker with overcurrent protection, designed to provide advanced circuit safety in demanding modern electrical installations. It offers comprehensive protection against overload currents, short circuits and earth leakage faults, while supporting systems that generate complex electrical waveforms.

This Type B RCBO is engineered to detect AC, pulsating DC and smooth DC residual currents, ensuring reliable protection where conventional RCBOs may be unsuitable. Its bi-directional power flow capability makes it particularly well suited to renewable energy systems and installations incorporating power electronics.

Featuring a C-curve tripping characteristic, the RKB140C-030 is ideal for circuits with higher inrush currents such as EV charging equipment, solar PV inverters and heat pumps. Rated at 40A, with a 30mA residual current sensitivity and a 6kA breaking capacity, it delivers robust, standards-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 circuits with high inrush current demands
• Compact single-module design to maximise space within consumer units
• Bi-directional supply capability for modern energy systems
• 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): 40A
• 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