The ABB 1SNA645004R0400 is a high-performance relay designed for robust operation in various applications. This model, known as RB121A, operates effectively with a 230V AC/DC power supply. It features a compact and durable design, ensuring reliability and efficiency in your electrical circuits. The relay is categorized under ABB's trusted brand, guaranteeing quality and performance. With a net and gross weight of just .9525 ounces, it is lightweight and easy to install in any setup. Ideal for industrial and commercial use, this relay is a versatile solution for managing electrical loads with precision.