BEAMA Technical Bulletin - Connection of Unidirectional and Bidirectional Protective Devices
21 August 2023
BEAMA Technical Bulletin - Connection of Unidirectional and Bidirectional Protective Devices.
This publication addresses the requirements for the correct connection of Residual Current Devices (RCDs) and Miniature Circuit-Breakers (MCBs) to power supplies e.g. battery storage, Photovoltaic (PV) systems, Electric Vehicles to home, a micro-generator, or grid (mains) supply. The publication aims to clarify the differences between connections for unidirectional and bidirectional RCDs and MCBs. For comprehensive requirements, BS 7671 must be consulted.
Updated March 2024
