The Siemens 3RH1911-2FB22 is a high-quality auxiliary switch block designed for seamless integration with contactor relays and power contactors. This component is part of the SIRIUS product family, renowned for its reliability and versatility in various industrial applications. With an IP20 protection class on the front, it ensures a safe operation in diverse working conditions.
This auxiliary switch block operates within an ambient temperature range of -25°C to +60°C, making it suitable for a wide range of environments. It boasts an impressive mechanical operating cycle of approximately 10 million operations, and an electrical operating cycle of around 200,000 at AC-15, 230V, highlighting its durability and longevity.
The 3RH1911-2FB22 features a cage clamp connection and is designed for snap-on mounting, which facilitates easy installation and maintenance. Its compact dimensions, with a width of 36.5mm, height of 37.5mm, and depth of 46mm, allow for efficient use of space inside control cabinets.
Equipped with spring-loaded terminals, the switch block can accommodate a variety of conductor cross-sections, ensuring flexible and secure connections. It also meets high safety standards, with mirror contact functionality according to IEC 60947-4-1 and positively driven operation according to IEC 60947-5-1, when used with compatible 3RT1 and 3RH1 devices, respectively.
The 3RH1911-2FB22 is a testament to Siemens' commitment to quality, offering a reliable solution for enhancing control system performance and ensuring operational excellence in industrial settings.