Siemens 3RA2711-0DB00 Coupling Module for IO-Link / AS-i – Star-Delta Start Original Brand New

Overview

The Siemens 3RA2711-0DB00 coupling module is designed to integrate effortlessly with communication-capable contactors in the Siemens SIRIUS 3RT20 series (…-0CC0). It supports both IO-Link and AS-i protocols and is specially engineered for star-delta (wye-delta) motor start applications without the use of terminal blocks. Its snap-on mounting on the front of the 3RT20 family ensures easy installation and compact control-cabinet design.

Function & Features

• Supports IO-Link communication (V1.1) for advanced diagnostics, parameterization and integration with your higher-level control system.

• Also supports AS-i (AS-Interface) coupling for flexible network integration.

• Designed for star-delta (wye-delta) motor start applications – ideal for reducing inrush current and improving motor start-up efficiency.

• No wiring terminals required (“without terminals”) – module snaps directly in front of the compatible contactor for quick and clean installation.

• Compatible with the front mounting on Siemens 3RT20…-…-0CC0 contactors (communication-capable versions) and the S00 / S0 size range.

• Compact, modular design that saves space in control cabinets and simplifies maintenance.

• Built by Siemens, ensuring high reliability, durability and alignment with the SIRIUS product family.

Benefit

• Reduced downtime & improved diagnostics – thanks to IO-Link connectivity, you can monitor module status, detect faults, and integrate easily into a smart production environment.

• Simplified installation & wiring – the snap-on design eliminates the need for additional terminals, reducing installation time and the chance of wiring errors.

• Space-saving design – front mounting means less depth needed in the control panel, enabling more compact installations.

• Flexible integration – supports both IO-Link and AS-i, making it suitable for a variety of automation network topologies.

• Optimised for motor control – looking for star-delta starting? This module is purpose-designed for that use-case, enabling you to implement the reduced-inrush start strategy easily.

• High brand confidence – from Siemens’s SIRIUS lineup, meaning proven field performance and global support network.

Application

• Industrial motor control panels where star–delta (wye–delta) starting is preferred for large motors.

• Systems with IO-Link or AS-i communication environments seeking modular, networked components.

• Retrofits or new installations of Siemens 3RT20 series contactors where front-mounted coupling modules simplify wiring and installation.

• Automation systems aiming for predictive maintenance, improved diagnostics and integrated control solutions.

Technical Data

• Product Number: 3RA2711-0DB00.

• EAN: 4011209800038.

• Function module for IO-Link / AS-i, star-delta start without terminals.

• Mounting: Snap-on front mounting on communication-capable 3RT20…-…-0CC0 contactor.

• IP rating (front): IP20 (typical for SIRIUS modules)

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