Siemens SIRIUS 3RT1966-4D Connection Extension for 3RT136 Contactor, Bus Connectors Offset Original Brand New

Overview

The Siemens 3RT1966-4D is a genuine SIRIUS accessory designed to provide a broadened connection for the 3RT136 power contactor (size S10). This component functions as a set of bus connectors offset and is essential for reliable, high-current connections. It's specifically required when the operational current of the 3RT136 contactor exceeds 275 A, ensuring compliance with necessary clearances and optimal electrical performance in demanding industrial automation applications.

Key Benefit

• Enhanced Current Handling: Allows the 3RT136 contactor to safely handle operational currents above 275 A.
• Optimized Connection: Provides a broadened connection point, which is critical for busbar connections in high-power applications.
• Reliable Siemens Quality: As part of the SIRIUS industrial control range, this accessory guarantees durability, safety, and seamless compatibility with your Siemens 3RT136 contactor.
• Easy Integration: Designed for straightforward fitting and use with the appropriate contactor model.

Function & Application

• Function: The 3RT1966‑4D acts as a broadened connection accessory — essentially extending or adapting the connection interface of the 3RT136 contactor to accommodate more or larger conductors, bus systems or customized wiring layouts.

• Typical Applications:

  • Motor control centers (MCCs) and switchgear using the 3RT136 contactor series

  • Automation cabinets where expanded connection points are required

  • Retrofitting or upgrading existing installations to provide more flexible connection options

  • Industrial environments (manufacturing lines, processing plants, heavy machinery) where contactor families like SIRIUS are standard

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