Product Overview

The LIVE Electrical RKA125B-030 Type A RCBO is a compact, MCB-sized residual current breaker with overcurrent protection, designed to deliver enhanced safety and reliable performance in modern electrical installations. It combines switching, isolation, overload protection and short-circuit protection within a single, space-saving device.

Featuring a switched neutral as standard, this RCBO ensures that healthy circuits remain energised while only the faulty circuit is isolated. The Type A protection allows detection of both AC and pulsating DC residual currents, making it suitable for today’s electronically controlled loads.

Rated at 25A with a 30mA residual current sensitivity and a high 10kA breaking capacity, the RKA125B-030 provides dependable protection against electric shock, insulation faults and fire hazards caused by earth leakage.

Key Features & Benefits

• Type A RCBO detects AC and pulsating DC residual currents
• B-curve tripping suitable for standard final circuits
• Switched neutral as standard for improved safety and circuit continuity
• Bi-directional power flow capability
• Provides switching and isolation
• Protection against overload and short circuits
• Protection against electric shock and fire hazards caused by insulation faults
• Compact MCB-sized design for efficient consumer unit installation

Technical Specification

• Poles: 1P+N
• Rated Current (In): 25A
• Tripping Curve: B
• Residual Current Sensitivity: 30mA
• Rated Frequency: 50/60Hz
• Rated Operating Voltage: 230/240V~
• Impulse Withstand Voltage (Uimp): 4kV (1.2/50µs)
• Breaking Capacity: 10kA
• Device Type: Type A
• Maximum Terminal Cable Size: 16mm²
• Terminal Torque: 2.5Nm
• Ingress Protection: IP20
• Direction of Supply: Bi-Directional
• Standards: IEC/EN 61009-1

Downloads

Data Sheet:
Click here to download the RKA Type A 10kA single-module RCBO data sheet

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