The Schneider SR3B261B is a versatile modular smart relay from the Zelio Logic family, designed to meet the automation needs of various industrial applications. Operating within a voltage range of 20.4 to 28.8 V DC and a maximum current of 415 mA, this smart relay offers reliable performance and efficient power consumption.
With a compact design measuring 125 x 90 x 59.5 mm, the SR3B261B is equipped with a local display for easy monitoring and configuration. It supports up to 500 control scheme lines with Function Block Diagram (FBD) programming and up to 240 lines with ladder programming, providing flexibility in programming options. The relay features a cycle time of 6 to 90 ms, ensuring quick and responsive operation.
The SR3B261B includes 16 discrete inputs and 10 relay outputs, making it suitable for a wide range of control tasks. The discrete inputs operate at 24 V AC with a current of 4.4 mA, while the relay outputs support voltage limits of 5 to 30 V DC and 24 to 250 V AC. The relay outputs are designed to handle thermal currents of 5 A for 2 outputs and 8 A for 8 outputs, ensuring robust performance in demanding environments.
This smart relay also features a clock with a drift of 12 minutes per year at temperatures ranging from 0 to 55 °C, and a backup time of 10 years at 25 °C, ensuring long-term reliability. The SR3B261B is protected against inversion of terminals, ensuring that control instructions are not executed in case of incorrect wiring.
Ideal for applications requiring precise control and monitoring, the Schneider SR3B261B smart relay is a reliable and efficient solution for modern industrial automation systems.