3RK7271-1AA30-0AA0 - Siemens DCM 1271 data decoupling module

The 3RK7271-1AA30-0AA0 module provides a reliable 24 V / 30 V DC input and a single AS-Interface output channel capable of delivering up to 4 A of power. It includes integrated overload protection, ground fault detection, and a signaling contact for enhanced operational diagnostics. As part of the DCM 1271 product family, this model is classified as an active product under Siemens' PM300 product lifecycle, ensuring long-term availability and serviceability. With a compact design—measuring just 80.00 x 125.00 x 50.00 mm and weighing only 0.161 kg—it fits neatly into most industrial control panels. Manufactured in the Czech Republic under Siemens’ global quality standards, the module supports robust integration into AS-Interface master configurations, providing safe data decoupling and fault protection between power supply and data lines.

Ideal for decentralized installations and AS-Interface networks, the Siemens 3RK7271-1AA30-0AA0 is widely used in industries like logistics automation, conveyor systems, machine building, and packaging lines. Engineers rely on this module to isolate power fluctuations and prevent communication faults between field devices and the AS-i master. With its built-in fault monitoring and compact footprint, it offers long-term stability for installations requiring dependable AS-i communication. Whether you're upgrading an existing network or designing a new automation setup, the DCM 1271 module ensures Siemens-level safety, efficiency, and ease of installation. Explore more Siemens AS-i solutions or get your quote now for the most competitive pricing and reliable support.