Residual Current Devices, or RCDs, are an essential form of protection for most circuits in modern electrical installations. In this video, we explain how an RCD works and the protection they offer to electrical installations and the people who use them. http://hub.efixx.co.uk/SE-cprotection ========================================= 00:00 Schneider circuit protection series 00:20 What is a residual current device (RCD)? 00:50 What protection does an RCD provide? 02:06 Electric shock protection 0