Description
The Siemens 5ST3012 Reliable Auxiliary Contact is a valuable accessory designed to enhance the functionality of Siemens SENTRON series circuit breakers and other compatible control equipment. This auxiliary contact unit features two normally closed (NC) contacts, providing essential signaling capabilities for remote monitoring or interlocking functions within an electrical control system. Its design prioritizes reliability and ease of installation.
Built with Siemens’ renowned quality, the 5ST3012 ensures dependable operation for critical control circuits. The normally closed contacts are ideal for applications where a signal is required when the main device is in its default state, or for safety interlocks that activate upon disconnection. This Siemens auxiliary contact is constructed for durability in industrial environments.
Applications for the Siemens 5ST3012 are widespread, including signaling the status of a circuit breaker (e.g., tripped or closed), providing feedback to a PLC, or enabling interlocking sequences between different electrical components. The DIN rail mount design simplifies its integration into control panels and distribution boards, minimizing installation time.
Choose the Siemens 5ST3012 for a reliable and efficient way to expand the control capabilities of your electrical systems. Its straightforward functionality, robust construction, and easy mounting make it an excellent choice for enhancing operational safety and automation. Trust in Siemens for your essential control components.


















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