The SR2D101BD is a compact, modular smart relay (micro programmable logic controller) from Schneider Electric's Harmony (Zelio Logic) series. It is designed for simple automation and control applications, replacing complex hard-wired relay logic with programmable, flexible, and space-saving solutions.
Specifications:
Parameter Specification
Product Range Harmony / Zelio Logic (Smart Relays)
Device Type Modular Smart Relay (Micro PLC)
Power Supply 24V DC
Built-in Digital Inputs 6 inputs (24V DC, sink/source configurable).
Built-in Relay Outputs 4 outputs (Relay contacts, changeover type - SPDT).
Output Contact Rating Typically 8A @ 250V AC / 5A @ 30V DC (resistive).
Programming Method Via dedicated display module (plug-in) or PC software (Zelio Soft or EcoStruxure Machine Expert - Basic).
Expansion Capability Yes (Modular). Can connect expansion I/O modules (e.g., digital, analog, counter) via side connectors.
Communication Basic models may have limited communication (e.g., built-in RS-485 Modbus). For advanced networking, communication modules (e.g., SR2COM01 for Ethernet) are available.
Program Memory Typically several hundred lines of ladder logic.
Real-Time Clock Often included for time-based control functions.
Mounting DIN Rail (35mm)
Operating Temperature -20°C to +55°C (typical)
Standards & Approvals UL 508, CSA, IEC/EN 61131-2, CE, RoHS.