Available. PLC-RSP- 24DC/21-21. The Phoenix Contact PLC-RSP-24DC/21-21 is a compact relay module designed for industrial automation applications. This module features a 24 V DC input voltage and includes two changeover contacts, facilitating versatile switching operations. It is engineered for mounting on NS 35/7.5 DIN rails, ensuring a secure and standardized installation. The relay module is equipped with spring-cage connections, allowing for quick and reliable wiring without the need for tools. Its slim design optimizes space utilization in control panels, making it ideal for applications where space is at a premium. The PLC-RSP-24DC/21-21 is UL/cUL approved for use in Class I, Division 2 hazardous locations, providing safe operation in environments with potential explosive atmospheres. This approval underscores its suitability for demanding industrial settings. The module operates within an ambient temperature range of -40°C to 60°C, ensuring reliable performance across various environmental conditions. With a mechanical service life of 2 million cycles, it offers durability and longevity, reducing maintenance needs and downtime. The relay module's design includes integrated input and interference suppression circuits, enhancing its resilience against electrical noise and ensuring stable operation in electrically noisy environments. These features make the PLC-RSP-24DC/21-21 a reliable and efficient choice for industrial automation tasks requiring robust and versatile relay solutions.