Bus system AS-Interface, Active AS-i module, DIN rail mounting, 4 inputs / 4 outputs, Operating voltage: 26.5...31.6 V DC (AS-i), Total current consumption from AS-i: 300 mA, Relay, Device: 4-pin pin headers with a pitch of 5.0 mm Connector: 1x4-pin twin connector with spring-cage connection from Phoenix Contact type TVFKC 1.5/4-ST BK 0.2.1.5 mm (AWG 24.16) 4x4-pin twin connector with spring-cage connection from Phoenix Contact type 2.5/4-ST BK 0.2..2.5 mm (AWG 24.14), Modules can be connected in series, Addressing socket, Version 3.0 with extended address mode, Only for operation with AS-i masters profile M4, Housing material: Plastic PC GF20