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In which applications should RCCB adjustment be 10 mA or 30 mA ?

 The low settings of 10mA and 30mA are for human protection, though the IEC 60364 standards only ask for 30mA. 30mA are mostly used for socket outlets and places of human access.10mA are for Sauna, Swimming pool equipment, etc. 
For light fittings and others 100mA is selected and others 300 or 500mA which is called equipment protection or fire protection. 
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