The GreenBrook H92-WP is a Type A RCD that cuts the power for added protection against electrocution. It has a high intensity LED power on indicator. · · · Type A RCD complying to BS 7288-2016 · · Mechanically latched, does not need resetting after a power loss · · Red and green dual flag system to show power on / off · · Fused for all fixed electrical appliances · · Cuts the power for added protection against electrocution · · Scratch resistant urea front plate · · Fits 35mm standard back box