| 摘要 |
<p>Electrical switching system with at least one switching module for switching-on and/or switching-off at least one power consumer, which module comprises at least one switching contact within a circuit, designed for switching the electrical power of the power consumer and at least one switching means, such as a relais with preferably single engaging coil, to operate the switching contact, and wherein the modules possibly locally individually and preferably in parts and centrally group wise, can be switched-on and/or switched-off with switching means, wherein the supply of the switching modules is preferably an alternating voltage with possibly different positive and negative amplitude, and the module furthermore contains at least one zener diode.</p> |
