Schneider Electric Zelio Logic Expansion Module, 24 V ac, 6 x Input, 4 x Output Without Display. Output Type: Relay. Input Type: Discrete. Mounting Type: DIN Rail. Width: 72mm. Display Included: No. Length: 110mm. Depth: 59.5mm. Dimensions: 110 x 72 x 59.5 mm. For Use With: Zelio Logic Modules. Termination Type: Screw. Module Type: I/O Extension. MPN: SR3XT101B