The Siemens 3RH2911-1AA10 is a high-quality auxiliary switch block designed to enhance the functionality of contactor relays and motor controllers. This component is part of the esteemed SIRIUS product line, known for its reliability and versatility in various industrial applications. With a front-mounted design, it features a single normally open (NO) contact, providing a straightforward solution for users needing to expand their control systems.
Crafted to withstand a wide range of operating conditions, the 3RH2911-1AA10 operates effectively within an ambient temperature range of -25 to +60 degrees Celsius, ensuring performance stability even in demanding environments. Its mechanical service life is impressive, with up to 10 million switching cycles, and it boasts an electrical endurance of 200,000 cycles at AC-15 at 230V, highlighting its durability and long-term reliability.
The auxiliary switch block is rated for an insulation voltage of 690V with a pollution degree of 3 and has a surge voltage resistance of 6kV, providing robust protection against voltage spikes. Its screw terminal connections make installation and maintenance straightforward, accommodating various conductor cross-sections for flexible integration into existing setups.
With an IP20 protection class rating on the front, the 3RH2911-1AA10 ensures that its internal components are safeguarded against solid objects, enhancing its longevity. Its compact dimensions allow for efficient use of space within control cabinets, making it an ideal choice for systems where space is at a premium.
The Siemens 3RH2911-1AA10 auxiliary switch block is a testament to Siemens' commitment to quality, offering a dependable solution for expanding control systems in industrial applications. Its robust design and technical specifications make it a valuable addition to any setup requiring precise and reliable auxiliary switching capabilities.