Siemens 3RT1966-5AU31 Changeover Operating Mechanism for 3RT126 Vacuum Contactor, 240-277V AC/DC Original Brand New

Overview

The Siemens 3RT1966-5AU31 is a high-performance changeover operating mechanism specifically engineered for seamless integration with the 3RT126 series vacuum contactors. This robust mechanism facilitates reliable switching operations in a wide range of industrial applications. Designed for maximum flexibility, it supports both AC (50…60 Hz) and DC operation with a versatile control voltage range of 240V to 277V. The inclusion of both Standard and Economy operating circuits allows for optimized power consumption depending on the application’s needs, while the secure screw terminals ensure a fast and dependable electrical connection.

Benefit

• Versatile Compatibility – Works seamlessly with Siemens 3RT126 vacuum contactors.

• AC/DC Operation – Supports 240–277V AC or DC, providing flexible application options.

• Reliable Performance – Ensures consistent switching and operational safety.

• Easy Installation – Screw terminal design simplifies wiring and setup.

• Cost-Efficient – Economy circuit design reduces unnecessary power consumption.

Function

• Facilitates changeover operations in vacuum contactor systems.

• Provides smooth switching between circuits without mechanical wear.

• Ensures safe and reliable electrical operation for industrial machines.

Technical Specification

• Product Number: 3RT1966-5AU31

• Type: Changeover Operating Mechanism

• Compatible Contactor: 3RT126

• Voltage: 240–277 V AC/DC

• Frequency: 50–60 Hz (AC)

• Operating Mechanism: Standard, Economy Circuit

• Connection Type: Screw Terminal

Application

The 3RT1966-5AU31 mechanism is ideal for control systems requiring a robust and flexible solution for managing high-current loads via 3RT126 vacuum contactors. Typical applications include:

• Motor control centers (MCCs)

• Switching high-voltage lighting systems

• Controlling resistive loads in heating/cooling systems

• General industrial machine control where reliable, high-power switching is necessary.

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