5ST3013-2 SIEMENS

The 5ST3013-2 auxiliary current switch from Siemens is designed to enhance the functionality of miniature circuit breakers (MCBs) and residual current circuit breakers with overload protection (RCBOs). This device features a test button for convenient operational checks and includes one normally open (NO) and one normally closed (NC) contact, providing versatile signaling capabilities. It is compatible with Siemens MCBs 5SL, 5SY, and 5SP, as well as incorporated switch 5TL1 and RCBO 5SU1 FI 5SV. When used with the 5SU1, a handle coupler 5ST3805-1 is required, especially for low power rating applications. This auxiliary switch allows for remote indication of the MCB or RCBO status, improving monitoring and control in electrical installations. Its compact design ensures easy integration into existing systems without significant space requirements. The test button facilitates periodic testing of the auxiliary switch functionality, ensuring reliable performance. By adding this auxiliary switch, users can gain valuable insights into the state of their circuit protection devices, enhancing overall system safety and efficiency. It provides a cost-effective solution for expanding the capabilities of standard circuit breakers.