Schneider Electric SR2B121JD | Relay & Timer

SR2B121JD Schneider Electric - Compact Smart Relay Zelio Logic - 12 I/O - 12V DC - with Clock - with Display - 4 Relay Outputs. The Schneider Electric SR2B121JD is a compact smart relay from the Zelio Logic series, designed for simple automation system management. It features 8 discrete inputs (12V DC, 4 of which can be industrial as analog inputs with 0-10V range) and 4 relay outputs, providing 12 total I/O points. The relay operates on 12V DC supply with a power consumption of 1.5W and includes a backlit LCD display with contextual navigation buttons for on-site programming and monitoring. It includes a real-time clock for time-based automation functions. It supports Function Block Diagram (FBD), Ladder Diagram (LD), and Sequential Function Chart (SFC) programming and mounts on standard DIN rail with screw terminals. The module is rated IP20 on the terminal block and IP40 on the front panel, with an operating temperature range of -20 to +55 degrees Celsius. Built-in EEPROM flash memory provides data backup up to 10 years for easy recovery after power interruption.

• Brand: Schneider Electric
• Category: Logic Controllers
• Range of Product: Zelio Logic
• Product Type: Compact Smart Relay
• Discrete Input Channels: 8 (4 usable as analog)
• Discrete Input Voltage: 12 V DC
• Discrete Input Current: 4 mA
• Analog Input Channels: 4
• Analog Input Range: 0-10 V, 0-12 V
• Analog Input Resolution: 8 bits
• Discrete Output Channels: 4 relay outputs
• Total I/O: 12
• Supply Voltage: 12 V DC
• Supply Voltage Limits: 10.4-14.4 V DC
• Supply Current: 120 mA (without extension)
• Power Consumption: 1.5 W (without extension)
• Local Display: With backlit LCD display
• Clock: With real-time clock
• Output Type: Relay (NO contacts)
• Output Voltage Limits: 5-30 V DC, 24-250 V AC
• Output Thermal Current: 8 A for all 4 outputs
• Electrical Durability: 500,000 cycles (AC-12 at 230V, 1.5A)
• Mechanical Durability: 10,000,000 cycles
• Response Time: 10 ms (0 to 1), 5 ms (1 to 0)
• Mounting Type: DIN rail
• Connection Type: Screw terminals
• Programming Languages: FBD, LD (Ladder), SFC
• Control Scheme Lines: Up to 240 with Ladder, up to 500 with FBD
• Backup Time: 10 years at 25 degrees Celsius
• Rated Impulse Withstand Voltage: 4 kV
• Net Weight: 0.25 kg
• IP Rating: IP20 (terminal block), IP40 (front panel)
• Operating Temperature: -20 to +55 degrees Celsius
• Country of Origin: France
• Standards: EN/IEC 61131-2, UL, CSA, GL, GOST, C-Tick

Managing simple automation systems with time-based control and 12V DC supply in industrial control, building automation, and small machine applications

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Factory warranty service is not applicable to this industrial control equipment, and extended warranty packages are not provided for this item.