Siemens 5ST3013 Auxiliary Switch 1NO+1NC

The auxiliary switch 1NO+1NC, also known as auxiliary contact, additional contact or signal contact, with type number 5ST3013 from Siemens is an electrical component from the category of auxiliary contact blocks for power contactors. It serves for status signaling and control in electrical circuits and features one normally open (1NO) and one normally closed (1NC) contact, designed for low-power applications. It has the dimensions 8 x 1 x 9 cm and weighs 0.07 kg. Auxiliary switches enable the remote display of the switching status of main switches or the control of downstream auxiliary circuits. Typical application areas include building automation for status messages of circuit breakers or industrial control for monitoring the operating status of machines. The component is compatible with, among others, the series '5SL', '5SY', '5SP', '5TL1', '5SU1', and '5SV'.

Auxiliary switch with 1 normally open (NO) and 1 normally closed (NC) contact, designed for low power applications. It is compatible with various miniature circuit breakers and integrated switches