The Siemens 3RV1901-1E is a versatile auxiliary switch designed for transverse operation. This plug-in device is compatible with circuit breakers of sizes S00, S0, S2, and S3, making it a flexible choice for a variety of industrial automation applications. The switch operates at a voltage of 230 V ac and 60 V dc, and features a 1NO/1NC configuration. With a compact design and screw-type terminals for auxiliary and control current circuits, the 3RV1901-1E ensures easy installation and secure connections. This part is CE, UL, CSA, and CCC certified, ensuring its compliance with international safety and performance standards. Whether you're upgrading your existing system or building a new one, the Siemens 3RV1901-1E auxiliary switch is a reliable and efficient choice for your automation needs.