About SCHNEIDER SR2 B121FU PLC

SCHNEIDER SR2 B121FU PLC

Compact smart relay, Zelio Logic SR2 SR3, 12 IO, 100 to 240V AC, clock, display

This Zelio Logic SR2 compact smart relay / programmable controller uses a supply voltage of 100V to 240V alternating current. It has 12 inputs / outputs with screw-clamp terminals, has an integrated clock and LCD display. It has compact design, allowing installation on DIN rail. It also offers simple programming, display and diagnosing of malfunctions display and navigation buttons. Its simple ladder programming makes it adapted for non-specialists.

Monochrome Backlit LCD Display

The SR2 B121FU features a clear, monochrome backlit LCD display with two lines, each supporting up to twelve characters. This display ensures easy on-site programming, monitoring, and status checking, even in various industrial lighting conditions, enhancing operational visibility and user interaction.


Versatile Expandability and Connectivity

Equipped with 6 digital inputs and 4 relay outputs, the PLC can be expanded up to 10 modules, making it suitable for growing or complex automation tasks. Its RS-485 serial port supports seamless connectivity with HMI, SCADA, or other controllers, streamlining integration within diverse automation environments.


Reliable and Certified Performance

Certified by CE, UL, and cULus, and designed for 24 V DC operation, the SR2 B121FU ensures high reliability and adherence to international safety standards. The device's real-time clock with battery backup maintains accurate timing for automated tasks even during power interruptions.