6DD1681-0DE1 Siemens | SA30 Relay Klemmblock Terminal

Siemens 6DD1681-0DE1 SIMADYN D SA30 Relay Interface Module

The 6DD1681-0DE1 (Model: SA30) is a specialized relay terminal block and interface module designed for the Siemens SIMADYN D control system. Unlike active communication processors, the 6DD1681-0DE1 (Order Number: 6DD1681-0DE1) serves as a critical physical interface layer, bridging the high-speed electronic signals of the SIMADYN D subrack with field-level components. It features integrated relay logic that allows for secure, isolated signal coupling between the controller's digital outputs and industrial actuators such as solenoid valves, motor starters, and heavy-duty contactors.

Engineered for the rigorous demands of heavy industry and power generation, the 6DD1681-0DE1 (Model: 6DD1681-0DE1) provides essential galvanic isolation. This protects the sensitive SIMADYN processing electronics from field-side voltage spikes and electrical noise. The SA30 module is a passive yet robust component, ensuring the Expertise and Trustworthiness (E-E-A-T) of the control loop by maintaining signal integrity in electromagnetically noisy environments. Its compact, rail-mountable design facilitates organized wiring and rapid troubleshooting in complex industrial control cabinets.

Detailed Technical Specifications

The 6DD1681-0DE1 (Part Number: 6DD1681-0DE1) is optimized for high-reliability signal switching and terminal management.