The Siemens 3RT2047-1AG208K is a high-performance SIRIUS 3RT2 Series power contactor designed for demanding motor control and industrial switching applications. Engineered for AC-3 duty, this 3-pole contactor delivers a rated operational current of 110A and supports motor loads up to 55kW at 400V, making it ideal for controlling pumps, compressors, conveyors, fans, HVAC systems, and heavy-duty industrial machinery.
Equipped with a 110V AC operating coil (Variant AG208K), the 3RT2047-1AG208K ensures reliable switching performance and stable operation in industrial automation systems. The contactor features 3 Normally Open (3NO) main contacts along with 1 Normally Open (1NO) and 1 Normally Closed (1NC) integrated auxiliary contacts, enabling efficient control, monitoring, signaling, and interlocking functions.
Built in the robust S3 frame size, the contactor utilizes durable screw terminal connections for secure conductor termination and simplified maintenance. Its rugged construction and compact footprint make it suitable for motor control centers (MCCs), industrial control panels, OEM machinery, manufacturing plants, and process automation installations.
The AG208K coil variant includes integrated suppression circuitry that helps reduce switching transients and protects sensitive control components from voltage spikes. This improves overall system reliability and extends the service life of associated automation equipment.
Manufactured according to Siemens SIRIUS quality standards, the 3RT2047-1AG208K offers a rated insulation voltage of 1000V, excellent switching endurance, and a mechanical service life of up to 10 million operating cycles. The contactor is designed for reliable operation in demanding industrial environments while maintaining high electrical performance and durability.
As part of the trusted Siemens SIRIUS 3RT2 contactor family, the 3RT2047-1AG208K provides dependable motor switching, high operational efficiency, and seamless compatibility with Siemens overload relays, motor starters, surge suppressors, and industrial automation products.
| Specification | Details |
|---|---|
| Product Name | Power Contactor |
| Brand | Siemens |
| Series | SIRIUS 3RT2 |
| Model Number | 3RT2047-1AG208K |
| SKU | 3RT2047-1AG208K |
| Product Type | Power Contactor |
| Utilization Category | AC-3 |
| Rated Operational Current (AC-3) | 110 A |
| Motor Rating at 400V | 55 kW |
| Number of Poles | 3 Pole |
| Main Contacts | 3 NO |
| Auxiliary Contacts | 1 NO + 1 NC |
| Coil Voltage | 110 V AC |
| Coil Variant | AG208K |
| Frequency | 50/60 Hz |
| Frame Size | S3 |
| Terminal Type | Screw Terminals |
| Rated Insulation Voltage (Ui) | 1000 V |
| Mechanical Life | Up to 10 Million Operations |
| Integrated Suppression | Yes |
| Mounting Type | Panel Mount |
| Operating Temperature | -25°C to +60°C |
| Application | Motor Control & Industrial Switching |
| Product Family | Siemens SIRIUS Contactors |
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