Megger manufactures non-tripping loop and rcd tester, megger lrcd200 series. The product is a combination of non-tripping loop tester and rcd test instruments. It provides simple, affordable and flexible test tools that are used for electrical contractors testing energized circuits. The non-trip loop tester lrcd200 series are supplied with a calibration certificate. There are three instruments which are available in the non-tripping loop and rcd tester series include: megger lrcd200, megger lrcd210 and megger lrcd220. These instruments provide three phase safe non-trip loop testing and fraction 1/2i, i, and 5i rcd testing for standard, selective and dc rcds. The salient features of the non-tripping loop and rcd tester: