Supply Siemens 6DD1681-0AD1 – SB61 8-Channel Digital Input Module
6DD1681-0AD1 is a Siemens SIMADYN D/TDC SB61 series digital input module, core component of 6DD series control system. It provides 8 galvanically isolated 24VDC input channels, collecting signals from buttons, switches and sensors. With LED status indicators for quick diagnosis and high EMC resistance, it ensures stable operation in harsh industrial environments, widely used in power, metallurgy and process control.