Schneider Electric SR2B121BProduct Attribute Attribute Value Controller Type I O Family Name Zelio Logic Family Mounting Type DIN Rail Number of Ports 12 Primary Type I O Module Series Zelio SR2 Series Supply Voltage 24VDC Termination Screw Type Compact Programmable UPC Code 785901571834 Overview Schneider Electric Zelio Logic SR2 SR3 Series Smart Relays For Simple Automation Systems up to 40 I O's: Easy to use, Zelio Logic provides a real alternative to solutions based on