Schneider Electric SR2A101FU Zelio Logic Smart Relay

Schneider Electric's Telemecanique Zelio Logic SR2A101FU Smart Relay is a compact, standalone programmable logic controller designed for small to medium automation tasks in control panels, packaging machines, conveyors, HVAC equipment, pumping stations, and building automation systems. It operates from an AC supply of 85–264 V (nominal 100–240 V) at 50/60 Hz and provides 10 I/O points (6 digital inputs, 4 relay outputs) in a 35 mm DIN rail package with an integrated LCD display for local monitoring. Programming is via Ladder Diagram (LD) or Function Block Diagram (FBD) using Zelio Soft 2, with EEPROM-backed program memory up to 10 years of retention and no built-in clock. As an OEM direct replacement in the Zelio Logic SR2 family, it supports reliable machine operation and flexible logic control without a full PLC, making it suitable for industrial machinery, material handling equipment, water treatment, lighting control, and process automation where compact control is needed. Common replacements include Schneider Electric SR2A101FU, Telemecanique SR2A101FU, and Zelio Logic SR2A101FU.