Siemens 3RA2712-1CB00 Basic AS-i Star-Delta, Wye-Delta, Start Module for 3RT20 Contactor Original Brand New

Overview: Basic AS-i Function Module for Star-Delta Starting

The Siemens 3RA2712-1CB00 is a basic function module designed to integrate a star-delta (wye-delta) motor starter into an AS-Interface (AS-i) network. This critical component simplifies wiring and control for industrial motor applications, specifically for a reduced-voltage star-delta starting sequence. It features a robust screw terminal connection type for secure and reliable wiring in demanding industrial environments.

This module is engineered for seamless front-side snapping onto specific communication-capable Siemens 3RT20 contactors (3RT20…-…..-0CC0), creating a compact and integrated solution for motor control applications like pumps, fans, and compressors.

Key Benefit

• Simplified AS-i Integration: Easily connect and control a complex star-delta motor starter circuit directly through the AS-Interface bus system, reducing parallel wiring complexity.
• Space-Saving Design: The snap-on mounting feature directly to the front of the 3RT20 contactor eliminates the need for separate panel space and wiring for control components.
• Reliable Connection: Utilizes traditional screw terminals for a proven, secure, and high-contact-pressure electrical connection.
• Efficient Motor Starting: Enables star-delta (wye-delta) starting, a reduced-voltage method that minimizes inrush current and mechanical stress on the motor and machinery during startup.

Function & Compatibility

• Function: Basic module for operating a star-delta starter (often used for motors with high starting current) via AS-i communication.
• Connection Type: Screw terminal (Terminal designation often preferred by technicians).
• Mounting: Front-side snap-on mounting on communication-capable SIRIUS 3RT20 contactors with the specific suffix -0CC0.
• System Integration: Part of the SIRIUS 3RA27 function modules family, designed for advanced motor management and communication.

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