Answer / raj

relay are device which are use to sense fault .
and cntactor are device which reacived signal through relay
and remove contact from the line or connect the line
(manually)

Answer / sahilnabi

Relay is basically an electronic device which manufact because of sensing very small parameters of electricity.

In connectivity of the same contactor is made for basically for manual as well as automatic switching operation for secure the machine from several surges.

The readings with a Multi meter are 15 Amps Phase Neutral 192,Phase Earth 194 and Neutral Earth 24 5 Amps Phase neutral 192, Phase Earth 153, neutral Earth 48

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