Overview
The Siemens 3RT1966-5AT31 is a critical spare part and accessory designed as a changeover operating mechanism, often referred to as a solenoid coil, specifically for the high-performance SIRIUS 3RT126 Vacuum Contactors. This unit ensures the reliable switching operation of the contactor in demanding industrial environments.
It is engineered to handle a versatile AC/DC (UC) control voltage of 575V to 600V at a frequency of 50…60 Hz. The mechanism features both a standard and an economy circuit option, providing flexibility and efficiency in control system design. Connection is made simple and secure via screw terminals. This is an Active Product from the renowned Siemens SIRIUS industrial controls portfolio.
Key Benefit
- Optimized Performance: Ensures the correct and reliable actuation of the Siemens 3RT126 vacuum contactor.
- Voltage Versatility: Designed for a wide control voltage range of 575V – 600V UC, suitable for various international high-voltage control systems.
- Energy Efficiency: Includes a switchable economy circuit, reducing holding power consumption after the contactor is fully closed, saving energy and minimizing heat generation.
- High Reliability: Screw terminals provide a robust, vibration-resistant, and secure electrical connection, crucial for heavy-duty motor control applications.
- Easy Maintenance: As a changeover mechanism, it facilitates quick replacement and maintenance, minimizing system downtime.
Function
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Changeover control for Siemens 3RT126 vacuum contactors
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Supports AC and DC operation
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Provides robust electrical switching
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Ensures long-term reliability and minimal maintenance
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