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Priority to ES0036551UpriorityCriticalpatent/ES36551Y/en
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Maximum intensity thermal switch, characterized by the graduation of the admissible electric current intensity by means of a spiral resistance that is heated in a time according to the function of 2nd degree, Q = RI2 t, which makes it possible to follow the curve of maximum admissible temperatures of the motors or devices to be protected, obtaining a maximum use of their power. When melting or softening, the fusible alloy bushing that holds a spring is free this producing the interruption of the current. (Machine-translation by Google Translate, not legally binding)
ES0036551U1953-06-061953-06-06
Maximum intensity thermal switch
ExpiredES36551Y
(en)
Improvements in the construction of fused conductors with additional mass for electrical circuit breakers (Machine-translation by Google Translate, not legally binding)