SCHNEIDER ELECTRIC SR3 B261BD Used Working PLC Controller

Product Overview

The Schneider Electric Zelio Logic SR3 B261BD is a high-performance Modular Smart Relay designed for the automation of small to medium-sized control systems. This "Compact" series module provides a highly flexible and cost-effective alternative to traditional PLC systems for applications such as lighting control, HVAC monitoring, and small industrial machine automation. Featuring 26 integrated I/O points and a built-in display, it allows for rapid programming, monitoring, and parameter adjustment directly on the device. As a Used Working unit, this smart relay is a reliable solution for maintenance or new installations requiring robust logic control in a space-saving DIN rail format.

Key Features

• 26 Integrated I/O Points: Equipped with 16 Digital Inputs (including 6 that can be used as Analog 0-10V inputs) and 10 Relay Outputs, providing extensive control capability.
• Built-in LCD Display & Keypad: Features a backlit display for real-time monitoring of variables, status messaging, and direct programming without the need for a PC.
• Modular Expandability: Allows for the addition of communication modules (Modbus/Ethernet) or extra I/O expansion modules to adapt to growing system requirements.
• Dual Programming Options: Can be programmed using functional block diagrams (FBD) or Ladder logic (LD) via the Zelio Soft 2 software or the front-panel keys.
• Integrated Clock/Calendar: Includes a real-time clock (RTC) for time-based control strategies, such as weekly scheduling or automated lighting cycles.
• Rugged Industrial Design: Fanless, solid-state construction designed for 24/7 operation with a wide operating temperature range.

Item Condition (Used Working)

• Functional Status: Used Working. This smart relay has been professionally bench-tested. All 16 inputs and 10 relay outputs have been verified for correct switching and logic response. The LCD backlight and keypad are fully functional.
• Physical State: Clean industrial condition. The DIN rail mounting clips are secure, and the terminal screws are in excellent shape. The front-panel display is clear and free of significant scratches.
• Technical Integrity: The internal memory has been cleared of previous user programs. The real-time clock battery is functional, and the unit passes all internal self-diagnostic checks upon power-up.
• Note: Professional installation is recommended. Please ensure the 24V DC power supply used is regulated and free of high-frequency noise for optimal performance.

Package Includes

1. 1 x Schneider Electric Zelio Logic SR3 B261BD Smart Relay