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can we use MCB C60H - DC for DC motor Application as it is "C" Curve ? If not, What DC MCB can be used for DC motor application ?

You can use the C60H DC breaker for motor application as the inrush current in DC is small (3 to 4 In) compared to AC which is higher. Please check the ratings of the DC motor and if they are high, you have to go for iC60L range combined with an external overload relay.
 
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