3RH21222LB40 | Sirius 3RH2 Contactor Relay (Auxiliary Contactor) Railway 10 A, 2 NO + 2 NC, 24 V DC, With Varistor – Siemens

The 3RH21222LB40 is a high-performance auxiliary contactor relay from the Siemens Sirius 3RH2 series, specifically designed for railway applications. This contactor relay is engineered to meet the demanding requirements of railway systems, ensuring reliable and efficient operation in critical environments.

Key Features:

• Current Rating: 10 A
• Contact Configuration: 2 Normally Open (NO) + 2 Normally Closed (NC)
• Coil Voltage: 24 V DC
• Varistor Protection: Equipped with a varistor for overvoltage protection, enhancing the durability and reliability of the contactor.
• Application: Specifically designed for railway applications, ensuring compliance with industry standards and regulations.
• Durability: Built to withstand harsh environmental conditions, including vibrations, shocks, and temperature fluctuations commonly encountered in railway systems.
• Compact Design: Space-saving design allows for easy integration into control panels and railway equipment.

Applications:

The 3RH21222LB40 auxiliary contactor relay is ideal for use in various railway applications, including:

• Control circuits in railway signaling systems
• Power distribution in railway vehicles
• Auxiliary control functions in railway infrastructure

Technical Specifications:

Benefits:

• Reliability: Ensures consistent performance in critical railway applications.
• Safety: Varistor protection safeguards against voltage spikes, reducing the risk of damage.
• Longevity: High mechanical and electrical life ensures extended service life, reducing maintenance requirements.
• Compliance: Meets railway industry standards, ensuring safe and reliable operation.