Siemens 3NP1940-1FA00 auxiliary switch is a practical electrical auxiliary device.
This auxiliary switch has one changeover contact and is applicable to equipment with sizes NH1, NH2, and NH3. Its accessories can be used for the protective disconnector 3NP1, showing good adaptability. As an auxiliary component in electrical systems, it can realize auxiliary control functions of circuits, such as signal indication and interlock control, according to the state changes of the main switch.
In terms of design and manufacturing, it adheres to Siemens' strict quality standards, ensuring product stability and reliability. With a compact structure, it is easy to install and can effectively save space. It is widely used in industrial automation, power systems, and other fields, providing strong auxiliary support for the normal operation of electrical equipment and helping to improve the overall performance and safety of systems.