Greenbrook RCD Fused Spur Unit fully conform to British Standards. All SafetySure Sockets and Spurs have separate test and reset buttons available in white plastic or metalclad. They are individually packed with an euro-hook slot for easy display. · · · Mechanical flag trip indicators · · Mechanically latched – no need to reset after a power loss · · Metalclad all with metal back boxes · · Pulsating DC earth faults · · Certified by CE