Megger manufactures rcd testers for electricians, megger rcdt300. The product is connected to a live three-phase supply. These ranges of products remain undamaged and present no safety hazard to the user. The instruments combine rugged construction with straightforward operation. Rcd testers for electricians are available in three models. The testers are compact ergonomic design and a tough impact-resistant body with a rubber overmoulding for protection, plus a built-in display cover. All models in the range are water and dust resistant, with an ip54 ingress protection rating. The products c has the facility of testing standard and selective rcds and covers current ranges from 30ma to 500ma. When connected to a live supply, it defaults to voltmeter mode. The salient features of rcd testers for electricians:
