Backorder available · Factory lead time 2–3 weeks.
The Siemens 3RT2944-5AL21 is an essential magnetic coil designed to operate with the SIRIUS 3RT2.4 series of power contactors. This high-quality component is engineered for reliable performance in industrial control systems. It operates on a standard control supply voltage of 230V AC at a frequency of 50/60 Hz, making it a versatile choice for a wide range of applications. The coil's primary function is to energize the contactor, enabling the switching of power circuits with precision and durability.
The magnetic coil, or electromagnet, is the core of an electromechanical contactor. When the control voltage (230V AC) is applied to the Siemens 3RT2944-5AL21 coil, it generates a magnetic field. This field attracts the armature, causing the contactor's main contacts to close or open, thereby controlling the flow of power to a connected load, such as a motor. This simple but critical function is what allows for the remote and automated control of high-power circuits.
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| SKU / Model | 3RT2944-5AL21 |
|---|---|
| Weight | 0.166 kg |
| Dimensions | 75 × 50 × 81 mm |
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