Overview
The Siemens 3RT2944-5AD21 Magnetic Coil is a genuine, high-quality replacement and spare part designed specifically for the SIRIUS 3RT2.4 series of power contactors (Size S3). This coil operates on a standard control voltage of 42 V AC at 50/60 Hz. As a critical component in your industrial control system, ensuring the correct coil voltage is essential for the reliable operation of your contactor, protecting machinery and maintaining uptime. This product is an active part of the SIRIUS modular system, guaranteeing perfect fit and function for maintenance or repair needs.
Key Features & Functions
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Voltage: 42 V AC
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Frequency: 50/60 Hz
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Compatible with Siemens 3RT2.4-A contactors
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High reliability for industrial automation
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Long operational lifespan
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Easy installation and replacement
Benefit
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Efficient Operation: Maintains optimal magnetic performance for smooth contactor operation.
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Versatile Compatibility: Works with 3RT2.4-A series contactors, making it ideal for various industrial setups.
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Durable & Reliable: Designed to withstand continuous industrial use, reducing downtime and maintenance costs.
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Quick Replacement: Simplifies maintenance and installation processes.
Function
The magnetic coil is the essential component that energizes Siemens contactors, allowing the switching of electrical circuits safely and efficiently. When powered, it generates a magnetic field that moves the contactor’s contacts, enabling precise control of motors, lighting, and other industrial equipment.
For a complete range of industrial automation spare parts, contactors, and accessories, please visit the main Turll website.













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