Working voltage: min. 12V, max. 250V Double usage of DC and AC Application scope:Used for protection big current for DC electric appliance,dynamoelectric,charger and electric motor and so on Current:5A??10A??15A??20A??25A??30A??35A??40A??50A Our circuit breaker is a kind of accessories that can be put into the motor,compound outlet ,electrical appliance and so on! .With the circuit breaker can protect the electrical appliance when there is overload current! If you have any question ,please do not hesitate to contact us!