Siemens 3RT2924-5AR61 Replacement Magnetic Coil, 400V AC 50/60Hz / 440V AC 60Hz, for SIRIUS 3RT2 Contactors Size S0 Original Brand New

Product Overview

The Siemens 3RT2924-5AR61 is a genuine replacement magnetic coil for the SIRIUS 3RT2 series of power contactors, specifically designed for Size S0 models. This coil is the critical control component that energizes the contactor, enabling it to open or close the main power circuit for motor control or switching applications.

Rated for a dual-frequency AC control voltage, this coil provides reliable operation in global industrial environments where both $50\text{ Hz}$ and $60\text{ Hz}$ systems are in use.

Function and Application

The 3RT2924-5AR61 coil acts as the solenoid of the contactor. When the specified control voltage (400V/440V AC) is applied, it generates the magnetic force required to pull the armature and close the main power contacts. This function is essential for:

• Motor Control: Starting, stopping, and reversing three-phase motors.
• Switching Loads: Controlling resistive, inductive, and capacitive loads in industrial panels.
• Replacement/Maintenance: Serving as a direct replacement part to quickly restore functionality to existing SIRIUS 3RT2 Size S0 contactors without replacing the entire unit.

Key Benefit

• Exact Fit & Reliability: As an original Siemens SIRIUS component, it guarantees a perfect fit and dependable performance with compatible 3RT2 contactors.
• Global Compatibility: The dual-voltage rating ($400\text{ V}/50\text{ Hz}$ and $440\text{ V}/60\text{ Hz}$) makes it versatile for a wide range of international electrical systems.
• Cost-Effective Repair: Replace only the coil—the most frequent failure point—to extend the lifespan of your contactor, saving time and cost compared to full unit replacement.
• Durable Design: Manufactured to Siemens’ high-quality industrial standards for long life and minimal maintenance in demanding environments.

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