This Schneider Electric Zelio Logic SR2 compact smart relay / programmable controller uses a supply voltage of 24 volts direct current, has 20 inputs / outputs with screw-clamp terminals. It has integrated clock and LCD display. This compact programmable relay is ideal for management, remote control or monitoring of simple automation systems. It is suitable for both industrial and commercial applications. It has compact form-factor, allowing installation on DIN rail. It also offers simple programming, display and diagnosing of malfunctions display and navigation buttons. Simple ladder programming, adapted for non-specialists. Discovery package, coming with Zelio Soft programming software, the simplest way to learn and use this relay. Built-in EEPROM flash memory for data backup up to 10 years, easy-to-recover after a power shortage or incident. This product is certified by C-Tick, GL, UL, CSA and GOST. It meets EN/IEC 60068-2-6 Fc and EN/IEC 61000-4-11 standards. Easy to use, Zelio Logic provides a real alternative solutions based on cabled logic or specific cards.