WEINZIERL 5385 KNX button interface | 4-way, potential-free

![CDATA[This button interface does not contain rockers/mounting frames, but interface cables for connecting standard switches with potential-free contacts. This means you can use the same powerful application for other switches/contacts. The built-in switches enable quick testing of the configuration. Mechanical data: - Housing: plastic (POM) - Installation in standard 55 button housing - Dimensions (LxWxH): 40x40x11.2 mm (insert) - Installation depth (bus terminal): 11 mm - Weight: approx. 15 g Power supply: - via KNX bus approx. 3mA Control and display elements: - 4 buttons - 6 LEDs (green) - KNX programming button with LED (red) Connections: - Terminal for KNX bus (red/black) - Socket for ext. Switch/LEDs Outputs (LEDs): - Voltage: 3.3 V - Internal series resistor: 2 kOhm Inputs (binary inputs): - Voltage at input contacts: SELV - Cable length: 1 m - the signal must not exceed 100 ticks per second - suitable for potential-free contacts]]>