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Siemens 3RA1921-1BA00 DC Link Module for Contactor Assemblies

Siemens 3RA1921-1BA00 DC link module for 3RV1/3RT1 contactors.

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ManufacturerSiemens

Part number3RA1921-1BA00

Type Link Module

Function Electrical and Mechanical Interconnection

Compatibility 3RV1.2, 3RT1.2

Operation DC

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Electrical Linkage Mechanical Linkage For 3RV1.2 & 3RT1.2 DC Operation Contactor Assembly Component

Product description

The Siemens 3RA1921-1BA00 is an electrical and mechanical link module specifically designed for DC operation with 3RV1.2 and 3RT1.2 series contactors. It provides the necessary linkage to build reversing contactor assemblies, ensuring synchronized and safe operation of the contactors in DC control circuits.

This module is vital for applications where DC power is used for motor control and reversing functionality is required. It guarantees the mechanical and electrical integrity of the contactor assembly.

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Technical specifications

Type	Link Module
Function	Electrical and Mechanical Interconnection
Compatibility	3RV1.2, 3RT1.2
Operation	DC

Common applications

Reversing Contactor Assemblies

DC Motor Control

Industrial Automation

Control Panels

Machine Wiring

Compatible systems

Siemens 3RV1.2, 3RT1.2 (DC Operation)

Also known as

3RA19211BA00 Siemens Contactor Link DC SIRIUS DC Link Module

Replaces / compatible with

This is a phased-out product. The preferred successor is SIRIUS 3RA2921-1BA00.

Technical note

Expert tip

Essential for building reliable DC reversing contactor configurations, this module ensures proper mechanical and electrical interlocking between contactors.

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Frequently asked questions

What is the specific application for the Siemens 3RA1921-1BA00 link module?

The Siemens 3RA1921-1BA00 is a link module designed for DC operation, used to create reversing contactor assemblies with 3RV1.2 and 3RT1.2 contactors.