WEINZIERL 5231 KNX binary input | 4-way, potential-free

![CDATA[The KNX IO 411 (4Ii) is a binary input with 4 channels for controlling lights, blinds, etc. via conventional switches or contacts. It is suitable for potential-free contacts and can also be used as a pulse counter, e.g. for energy meters with S0 output. Two buttons and three LEDs enable local operation and visualization. The device also offers 16 independent logic or time functions. Technical data: Plastic housing, series installation (1 TE), weight approx. 50 grams. Control elements: 2 buttons for local operation with menu, 3 multicolor LEDs, KNX programming LED and recessed KNX programming button. Connections: Terminal for KNX bus (red/black), plug-in screw terminals (3-pin) for binary inputs channels 1-4. Inputs (binary inputs): SELV voltage at input contacts, cable length up to 20 m.]]>