Siemens 3RT2934-5AL21 SIRIUS Magnet Coil 230V AC 50/60Hz for 3RT2.3 Contactors Original Brand New

Overview

The Siemens 3RT2934-5AL21 is a genuine replacement or spare magnet coil specifically engineered for the SIRIUS 3RT2.3 series power contactors. Operating on a standard control supply voltage of 230 V AC at both $50\text{ Hz}$ and $60\text{ Hz}$, this coil is a critical component for the reliable function of your Size S2 contactors, such as models 3RT203 and 3RT233. As part of the highly reliable Siemens SIRIUS modular system, the 3RT2934-5AL21 ensures maximum operational safety and continuity for motor starting and switching applications.

Benefit & Features

• Perfect Fit: Specifically designed for $3\text{RT}2$ contactors of size S2, ensuring seamless replacement and integration.
• Global Compatibility: Rated for standard $230\text{ V AC}$ with dual $50\text{ Hz}$ / $60\text{ Hz}$ frequency compatibility, making it suitable for industrial systems worldwide.
• Reliable Performance: A genuine Siemens SIRIUS component, guaranteeing the contactor's optimal operation, low power consumption, and long mechanical life.
• Easy Maintenance: Facilitates quick and efficient maintenance to minimize equipment downtime.
• Quality Assurance: Manufactured to Siemens' strict quality standards in Germany, complying with international norms like IEC and UL.

Function

The 3RT2934-5AL21 magnetic coil acts as the core operating mechanism within the contactor. When the specified $230\text{ V AC}$ control voltage is applied, the coil generates a magnetic field. This field pulls the armature, which closes or opens the main power contacts, thereby controlling the flow of power to the connected motor or load. The coil's rating is crucial for ensuring the contactor pulls in reliably and holds the contacts firmly against vibrational forces.

Application

The $3\text{RT}2934\text{-}5\text{AL}21$ coil is primarily used in:

• Motor control systems.
• Industrial automation panels.
• Load-switching applications requiring an S2 frame contactor with a $230\text{ V AC}$ control circuit.
• HVAC and pumping systems.

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