| 摘要 |
PURPOSE: An electromagnetic contactor and a monitoring system of the same are provided to minimize loss in a factory management system by sensing the state of an input power source in real time which supplies power to a power input terminal. CONSTITUTION: An electronic switch(200) is connected to an input power source(100). The electronic switch receives an input voltage from the input power source. The electronic switch supplies power to a load while repeating a conducting state and a cutting off state. A state monitor(300) determines the state of the input power source based on the input voltage. The state monitor displays the state of the input power source. [Reference numerals] (210) Electronic controller; (310) Surge absorption part; (320) Constant voltage circuit; (330) Input voltage detector; (340) Comparator; (350) State display part; (400) Signal output part |
