The Siemens 3RT2047-1AG20 is a high-performance SIRIUS 3RT2 Series power contactor engineered for reliable switching and control of three-phase motors in demanding industrial environments. Designed for AC-3e/AC-3 duty applications, this 3-pole contactor is rated at 110A and supports motor loads up to 55kW at 400V, making it ideal for pumps, compressors, conveyors, fans, HVAC equipment, and heavy-duty industrial machinery.
Equipped with a 110V AC, 50/60Hz operating coil (Variant AG20), the 3RT2047-1AG20 provides dependable switching performance and stable operation in industrial control 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 motor control, signaling, monitoring, and interlocking functions.
Built in the robust S3 frame size, the contactor utilizes secure screw terminal connections for fast installation, reliable conductor termination, and simplified maintenance. Its rugged construction ensures long service life even in harsh industrial operating conditions.
Manufactured according to Siemens SIRIUS quality standards, the 3RT2047-1AG20 offers a rated insulation voltage of 1000V, high switching endurance, and a mechanical service life of up to 10 million operating cycles. These features help reduce downtime and maintenance costs while ensuring reliable operation throughout the product lifecycle.
The compact design allows efficient integration into motor control centers (MCCs), industrial control panels, OEM machinery, process automation systems, water treatment facilities, and manufacturing plants. The contactor is fully compatible with Siemens overload relays, surge suppressors, auxiliary contact blocks, and SIRIUS motor starter accessories.
As part of the trusted Siemens SIRIUS 3RT2 contactor family, the 3RT2047-1AG20 delivers dependable motor switching, excellent electrical performance, and seamless integration into modern industrial automation systems.
| Specification | Details |
|---|---|
| Product Name | Power Contactor |
| Brand | Siemens |
| Series | SIRIUS 3RT2 |
| Model Number | 3RT2047-1AG20 |
| SKU | 3RT2047-1AG20 |
| Product Type | Power Contactor |
| Utilization Category | AC-3e / 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 Frequency | 50/60 Hz |
| Coil Variant | AG20 |
| Frame Size | S3 |
| Terminal Type | Screw Terminals |
| Rated Insulation Voltage (Ui) | 1000 V |
| Mechanical Life | Up to 10 Million Operations |
| 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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