3RH1921-1HA13 SIEMENS

The 3RH1921-1HA13 auxiliary switch block from Siemens is a crucial component designed to enhance the functionality of motor contactors. This 4-pole auxiliary switch block conforms to EN 50012 standards, ensuring reliability and safety in various industrial applications. Featuring a configuration of 1 normally open (NO) and 3 normally closed (NC) contacts, it provides versatile switching options for control circuits. The screw terminal design facilitates secure and straightforward electrical connections, minimizing installation time and ensuring stable performance. Specifically designed for size S0 to S3 motor contactors, this 2-pole auxiliary switch block seamlessly integrates with existing systems. It expands the control capabilities of the contactor, enabling more complex automation and monitoring functions. This auxiliary switch block is ideal for applications requiring additional control contacts for signaling, interlocking, or other control functions. Siemens' commitment to quality ensures that the 3RH1921-1HA13 delivers consistent and dependable performance in demanding industrial environments. Its robust construction and adherence to international standards make it a reliable choice for enhancing motor control systems.