The Siemens Power Contactor 3RT1056-6CF308K is a premium industrial switching device designed to deliver dependable motor control and power switching performance in demanding industrial environments. As part of the globally trusted Siemens SIRIUS 3RT series, this contactor combines advanced engineering, mirror contact technology, robust construction, and AC coil operation to ensure reliable operation across a wide range of industrial applications.
Available at SB Smart (sbsmart.in), the 3RT1056-6CF308K Power Contactor is engineered for industries that require high-performance switching devices capable of operating continuously under challenging conditions. Whether used in manufacturing plants, motor control centers, process automation systems, infrastructure projects, or power distribution networks, this Siemens contactor delivers the reliability, durability, and operational efficiency required for modern industrial systems.
The Siemens 3RT1056-6CF308K is equipped with Mirror Contact Elements, a critical safety feature that provides accurate feedback regarding the actual position of the main contacts. This functionality supports improved diagnostics, enhanced safety monitoring, and more efficient maintenance procedures. For industrial facilities where equipment reliability and system safety are priorities, mirror contact technology offers significant operational advantages.
Built with a robust industrial-grade design, the 3RT1056-6CF308K ensures long electrical and mechanical service life. The contactor utilizes screw terminal connections, providing secure wiring and simplified installation. This connection method also makes routine inspection and maintenance easier, reducing overall downtime and improving operational efficiency.
The AC Coil configuration ensures stable and reliable switching performance while maintaining compatibility with a wide range of industrial control systems. Siemens has designed this contactor to deliver consistent operation even in demanding environments where vibration, temperature fluctuations, and continuous-duty cycles are common.
One of the major advantages of the Siemens Power Contactor 3RT1056-6CF308K is its suitability for heavy-duty motor control applications. It is widely used for switching and controlling three-phase motors, compressors, pumps, conveyors, fans, HVAC equipment, and industrial machinery. Its dependable switching performance helps protect valuable equipment while supporting efficient system operation.
For panel builders and automation engineers, the 3RT1056-6CF308K offers easy integration into industrial control panels and automation systems. The compact yet durable design allows efficient panel layout while maintaining the high performance expected from Siemens industrial products.
The Siemens 3RT1056-6CF308K Power Contactor is widely used in:
At SB Smart (sbsmart.in), we provide genuine Siemens industrial automation and electrical products sourced through trusted supply channels. The 3RT1056-6CF308K Power Contactor offers exceptional performance, operational reliability, and long-term value for industrial applications.
Whether you are building a new automation system, upgrading existing equipment, or replacing a critical motor control component, the Siemens 3RT1056-6CF308K delivers the quality, safety, and reliability that industries worldwide expect from Siemens.
| Specification | Details |
|---|---|
| Product Name | Power Contactor |
| Manufacturer | Siemens |
| Series | SIRIUS 3RT |
| Order Code | 3RT1056-6CF308K |
| Product Type | Power Contactor |
| Number of Main Poles | 3 Pole |
| Main Contact Configuration | 3 NO |
| Auxiliary Contacts | 2 NO + 2 NC |
| Coil Type | AC Coil |
| Coil Voltage | 110–127V AC |
| Control Frequency | 50/60 Hz |
| Frame Size | S10 |
| Rated Operational Current (AC-3) | 185 A |
| Rated Operational Current (AC-1) | 275 A |
| Motor Rating @ 400V | Up to 90 kW |
| Rated Operational Voltage | Up to 690 V AC |
| Terminal Type | Screw Terminals |
| Main Circuit Connection | Busbar |
| Mirror Contact Elements | Yes |
| Mechanical Life | Up to 10 Million Operations |
| Mounting Type | Panel Mount |
| Protection Class | IP00 |
| Application | Motor Control & Power Switching |
| Brand | Siemens |
| Condition | New & Genuine Product |
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