Overload relay does not trip and burns the motor

[lemonginger]

0.55kw motor keeps burning and the relay does not trip. Is it because the size of the relay too big? What would be the possibility of the relays not tripping? Please help.

 

[GoldDigger]

0.55kw motor keeps burning and the relay does not trip. Is it because the size of the relay too big? What would be the possibility of the relays not tripping? Please help.
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